P1391 Jeep CodeTrouble code came back as P1391, Intermittient CKP/CMP signal loss. So I force flashed the PCM, and it ran a little better, but still not drivable. What Does the P1391 Chrysler Code Mean? The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP) Signal. 2003 Jeep Grand Cherokee Code P1391, Running Rough and Stalling. The Diagnostic Trouble Code (DTC) will set when the PCM detects the actual Camshaft Position Sensor position disagreed with the expected Camshaft Position Sensor level. Crank Position Sensor or Cam Position Se Show more Show. P1391, stumbling, stalling, even with new sensors. Next I replaced the CKP and now I have the problem all the time whether its raining or not. It refers to intermittent conditions in the CMP (camshaft position sensor) or the CKP (crankshaft position sensor), which usually happens This error code is a manufacturer-specific trouble code, meaning it does not apply to all vehicles. p1391 code jeep 1 Answer 0 votes answered Dec 17, 2017 by anonymous you will have to check to see if the Camshaft/crank position sensor wiring is good use something to probe the back of the wire and use a multimeter also check the flex plate of the transmission and see if all the teeth are fine (through the inspection space). What Does P1391 Jeep Code Mean? In simple language, the error number P1391 indicates a problem with either your Crankshaft Position Sensor (CKP), Camshaft. P1391 code fixed 97 wranglet. 39 Tempat Wisata di Serang Terbaru yang Lagi Hits. I also placed order with Jeep dealer for OEM crank sensor, being told its on "unknown back order. How to fix error code p1391 on 1998 jeep cherokee sport. I have been searching for a fix on my daughters 97 Wrangler 4 cyl auto for awhile. Fix & Repair a P1391 Code on a Jeep Wrangler, Cherokee or …. Code P1391 Jeep Description The Powertrain Control Module ( PCM ) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor (. How to Troubleshoot and Fix P1391 Jeep DTC Code?. What Does the P1391 Chrysler Code Mean? The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP). This time I am diagnosing a 2004 Jeep Grand Cherokee with a Cam/Crank code with misfires and hard start. P1391 (M): Intermittent Loss of CMP or CKP - Loss of the Cam Position Sensor or Crank Position sensor has occurred. Now we have all the other codes listed above. 2003 Jeep Grand Cherokee Code P1391, Running Rough and. This video might be worth watching: Fix & Repair a P1391 Code on a Jeep Wrangler, Cherokee or Similar Watch on Here's two threads worth reading as well: Jeep TJ Wrangler Crankshaft Position Sensor Replacement. Pabrik - PT Panata Jaya Mandiri / Plant. Have a strong understanding of SDLC and STLC. Codes read P1391 and. What Does the P1391 Chrysler Code Mean? The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP) Signal. (Same as code 72) 65. Intermittent stall, no start - P0320, P1391 cam, crank sensor testing (Jeep) ScannerDanner 366K subscribers Subscribe 271K views 6 years ago Join me and one of my students at RTC as we. Fix & Repair a P1391 Code on a Jeep Wrangler, Cherokee or. (2) shorted out the Fuel pump/ECU power wire. P1391 - Intermittent Loss of CMP or CKP Signal. 2004 Jeep Cherokee P1391 Cam/Crank Sensor Code -Pt 1 Schrodingers Box 243K subscribers 182K views 7 years ago This time I am diagnosing a 2004 Jeep Grand Cherokee with a Cam/Crank code with. 1999 wj p1391 code. My questions are: Where is the camshaft position sensor and is there anything I should look for?. 0 5186 Views 2 Replies 1 Participant Last post by NJWrangler01 , May 9, 2016 NJWrangler01 Discussion Starter · May 6, 2016 So the other day I thought I felt a slight stumble and the CEL comes on but Jeep continues to run fine. I don't get itany idea what could be going on. 87K subscribers Subscribe 62K views 4 years ago Jeep Grand Cherokee WJ with a CEL. It refers to intermittent conditions in the CMP (camshaft position sensor) or the CKP (crankshaft. *P1391-INTERMITTENT LOSS OF CMP OR CKP Reply Save Like R redheadmike73 Discussion Starter · #3 · Jul 15, 2020. Proven track record of achieving and exceeding sales targets. The issue is INTERMITTENT P1391* the scanner would allow you to check all codes, check SYNC, selecting graphing and observe CMP and CKP waveforms. billkrummel Discussion Starter · Oct 15, 2019. Check engine code P1391 5934 Views 10 Replies 6 Participants Last post by Derweazel , Jan 6, 2021 J Johnsonjf Discussion Starter · Mar 29, 2018 I have a 98 Wrangler Sport 4. codes Curug: 38. Get them both checked as the ECU isn't receiving information from one of them. P1299: Vacuum Leak Found (IAC Fully Seated) - MAP Sensor signal. I recently replaced the distributor, the old one had a shaft which was loose and wiggled in the housing. Timing belt or chain stretched or jumped. A six weeks program completely based on learning and challenges. I Replaced the motor myself with a remanufactured engine. How To Retrieve Your Jeep's Diagnostic Code. Try my best to utilize abstract thinking and analytical expertise in troubleshooting bugs reports and. P1391 Definition: CMP or CKP signal intermittent condition Explanation: The ECM detected the actual CMP position disagreed with the expected CMP level Probable cause: 1. 68,918 Location Florence, AZ Sep 17, 2017 #2 Yep, that's a camshaft or crankshaft position sensor. What Does the P1391 Jeep Code Mean? The Powertrain Control Module ( PCM ) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor (. I keep throwing a P1391 code I've replaced the crank sensor ">I keep throwing a P1391 code I've replaced the crank sensor. Code Improvements and Refactoring Best Practices and Rules Maintainer; Interns Pakistan. Excellent skills in high-level testing strategies and problems. Check engine code P1391 | Jeep Wrangler Forum Home Forums Model Specific Jeep Discussions Wrangler TJ TJ Technical Discussion Check engine code. Trouble code came back as P1391, Intermittient CKP/CMP signal loss. Trouble code P1391 usually pertains to an intermittent CMP/CKP signal, low input voltage to the glow plug or its circuit, or problems with a car’s wheel speed/G-sensor. I have replaced crank sensor,dist. P1391 CHRYSLER - Intermittent Loss of CMP or CKP Usually paired with a check engine light on. 2003 Jeep Liberty check engine codes P1391 and p1698. P1391 CHRYSLER - Intermittent Loss of CMP or CKP Usually paired with a check engine light on. I just got replaced (20 mins ago) the crank position sensor and now there is a P1391 code and it feels like the engine is misfiring or something, when it had misfire codes before the engine idled very nicely ( except for the few lumpy occasions). 57, Banten, Kasemen, Kota Serang, Banten 42191 Itulah 40 Objek Wisata di Serang. P1391 cam, crank sensor ">Intermittent stall, no start. 200 jeep codes P0302, P1391, P0353, P0352, P0351 2000 Jeep Grand Cherokee Laredo 4. I have 1997 jeep cherokee 4. 617 Views 6 Replies 3 Participants Last post by billkrummel, Oct 16, 2019. Fix Repair P1391 Code on Jeep Wrangler Cherokee or Similar youtube. ), then the Cam shaft position sensor (which the code appeared while missing during idle)was replaced today right before this new code appeared. I replaced the CMP first and the problem came back the next time it rained. What Does the P1391 Jeep Code Mean? The Powertrain Control Module ( PCM ) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP ) Signal. my jeep spits and sputters and barely stays running. 87K subscribers Subscribe 62K views 4 years ago Jeep Grand Cherokee WJ with a CEL. P1391 - Possible symptoms: (1) random misfire/stumble/bucking/stalling, often over bumps or right hand turns or when going into reverse. Intermittent stall, no start - P0320, P1391 cam, crank sensor testing (Jeep) ScannerDanner 366K subscribers Subscribe 271K views 6 years ago Join me and one of my students at RTC as we. Trouble codes on 2003 Jeep Liberty Renegade 3. 2002 Jeep Wrangler TJ (6 cylinder) has code P1391, I replaced the Crank shaft position sensor (3 days before which fixed the random die outs while driving down the road. The Vector Code hiring Sales Specialist. I check wires and plugs on cps, cks and computer all appear fine. Definition: CMP or CKP signal intermittent condition. It would run, but it ran terribly. 2003 Jeep Liberty; Open Questions: 0 answers. -Code 1391? (Intermittent crankshaft position sensor (CPS) or camshaft position sensor (CamPS) -When cold (under approx 200F), runs relatively smooth, but when hot (over approx 200F) starts surging? -When hot, freeway speeds, CEL starts flashing but don't notice any drivability difference?. 2002 Jeep Wrangler TJ (6 cylinder) has code P1391, I replaced the Crank shaft position sensor (3 days before which fixed the random die outs while driving down the road. -Code 1391? (Intermittent crankshaft position sensor (CPS) or camshaft position sensor (CamPS) -When cold (under approx 200F), runs relatively smooth, but. 0:00 / 6:20 Jeep Grand Cherokee - P1391 AUDImotive 4. Intermittent stall, no start - P0320, P1391 cam, crank sensor testing (Jeep) ScannerDanner 366K subscribers Subscribe 271K views 6 years ago Join me and one of my students at RTC as we. p1391 code jeep 1 Answer 0 votes answered Dec 17, 2017 by anonymous you will have to check to see if the Camshaft/crank position sensor wiring is good use something to probe the back of the wire and use a multimeter also check the flex plate of the transmission and see if all the teeth are fine (through the inspection space). Fix & Repair a P1391 Code on a Jeep Wrangler, Cherokee or Similar Watch on Here's two threads worth reading as well: Jeep TJ Wrangler Crankshaft Position Sensor Replacement Jeep Wrangler TJ Camshaft Position Sensor Replacement Should be easy and straight forward. Wrangler TJ TJ Technical Discussion P1391 2001 4. P1391 JEEP Possible Causes Faulty Crankshaft Position Sensor (CKP) Crankshaft Position Sensor (CKP) wire harness is open or shorted Crankshaft Position Sensor (CKP) wire circuit poor electrical connection. What Does P1391 Jeep Code Mean? In simple language, the error number P1391 indicates a problem with either your Crankshaft Position Sensor (CKP), Camshaft Position Sensor (CMP), or both. P1391 - Intermittent Loss of CMP or CKP Signal. 6K views 9 years ago Trying to figure out why this Jeep runs good while cold and. 0 code p1391 allready replaced crank sensor,cam sensor,fuel pump, cleaned or replaced gound straps, 920 Matt Hardy, ASE Certified Technician 920 Satisfied Customers. I unplug computer to reset cel. Error Code P1391: CMP or CKP Signal Intermittent Condition. Jeep Grand Cherokee - P1391 AUDImotive 4. Jeep Grand Cherokee Code P1391, Running Rough and ">2003 Jeep Grand Cherokee Code P1391, Running Rough and. Its symptoms include an illuminated CEL, erratic. 0:00 / 6:20 Jeep Grand Cherokee - P1391 AUDImotive 4. The engine was missing and skipping, idling too low, etc. 0 showing trouble codes: P0302, P1391, P0353, P0352, P0351. 7 engine has a p0340 and p1391. com Jeep Liberty Crank No Start Part youtube. 0L Question is, I'm thinking it's the Crank Position Sensor (CKP), which can be had on RockAuto for about $30, but should I also throw more parts at it like the cam position sensor (another $30)?. 2004 Jeep Cherokee P1391 Cam/Crank Sensor Code -Pt 1 Schrodingers Box 243K subscribers 182K views 7 years ago This time I am diagnosing a 2004 Jeep Grand Cherokee with a Cam/Crank code with. P1391 after replacing crank position sensor. 7L V6 4x4 I have a 2003 Jeep Liberty Renegade 4x4 I got codes P0731, P0732 and P0734 and car will still be in drive when put into neutral and car won move when put in reverse, But driving is weird. P1391 Jeep Code Meaning, Symptoms, and Fix. 0 code p1391 engine cuts out runs rough. PCM Failure to update service reminder indicator. all sensors are mopar factory sensors, Cam position sensor and Crank shaft position sensor are mopar, about 1. NJWrangler01 Discussion Starter · May 6, 2016 So the other day I thought I felt a slight stumble and the CEL comes on but Jeep continues to run fine. 0 auto was created by 99BlackPearXJ Hello, 99 jeep cherokee auto 223,000 body, 30,000 motor I have a P1391 code with a check engine light, the light returns every second start if i clear adaptive memory. Self-motivated and able to work independently. The internship track is built by an industry expert that let develop the. ), then the Cam shaft position … read more. Trouble code P1391 usually pertains to an intermittent CMP/CKP signal, low input voltage to the glow plug or its circuit, or problems with a car's wheel speed/G-sensor. 2004 Jeep Cherokee P1391 Cam/Crank Sensor Code -Pt 1 Schrodingers Box 243K subscribers 182K views 7 years ago This time I am diagnosing a 2004 Jeep Grand Cherokee with a. Comment Flag More Print this page Share this. Posted on Jun 13, 2018 Helpful 0 Not Helpful Comment Flag You can't post conmments that contain an email address. P1391 - Intermittent Loss of CMP or CKP Signal. the car will start fine but after it's warm it stats making a werd noise. Trouble code came back as P1391, Intermittient CKP/CMP signal loss. The issue is INTERMITTENT P1391* the scanner would allow you to check all codes, check SYNC, selecting graphing and observe CMP and CKP waveforms. P0320 (M): No Crank Reference Signal at PCM - No reference signal (crankshaft position sensor) detected during engine cranking. Not sure if this was a prexisting problem, due to the fact i just bought this Wrangler with a bad engine and it had been sitting for 3 years. 2003 Jeep Grand Cherokee Code P1391, Running Rough and Stalling - VOTD Robert DIY 212K subscribers Subscribe 7. do anyone know the resistance on these sensors so i can test them? i had trouble with grounding on my jeep and i fixed a couple wires i just wants to make sure it is not wires before i go buying sensors. Codes read P1391 and P300s, all cylinders misfire. Error Code P1391 is defined as CMP or CKP Signal Intermittent Condition. Strong communication and interpersonal skills. Requirements: Bachelor's degree in business, marketing, or a related field. What Does the P1391 Jeep Code Mean? The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP) Signal. 0 liter xj with codes p1391 and…. 2004 Jeep Cherokee P1391 Cam/Crank Sensor Code. Unsuccessful attempt to write to an EEPROM location by the PCM. 6K views 9 years ago Trying to figure out why this Jeep runs good while cold and. The cam sensor needs to be within 10 degrees of crank to by in-sync, otherwise the cam signal isn't recognized by the PCM. Calibrate the Steering Angle Sensor Next, If there is no issue with the battery connection, you should calibrate the steering angle sensor. cam sensor">2002 Jeep wrangler s: (6 cylinder). Approximately 50 miles later, stumbling, stalling and P1391 code. P1391 = Intermittent loss of CMP or CKP. Read Also: How To Troubleshoot & Fix P1391 Jeep Code? Detailed Guideline! 2. P1391 JEEP Possible Causes Faulty Crankshaft Position Sensor (CKP) Crankshaft Position Sensor (CKP) wire harness is open or shorted Crankshaft Position Sensor (CKP) wire circuit poor electrical connection. Started up perfect and idled perfect for a few minutes, so I decided to take it down the road - Only got about a mile, and same thing, just shuts down. Proficient in Microsoft Office and CRM software. SOLVED: I am getting a p1391 code on my jeep. P1391 after replacing crank position sensor | Jeep Enthusiast Forums Home Forums Models Jeep Cherokee & Comanche Forums XJ Cherokee Technical Forum. This time I am diagnosing a 2004 Jeep Grand Cherokee with a Cam/Crank code with misfires and hard start. " New rock auto crank sensor arrives today. Power steering high pressure seen at high speed. P1391 Chrysler Code Meaning, Causes, Symptoms, & Tech Notes">P1391 Chrysler Code Meaning, Causes, Symptoms, & Tech Notes. 0 code p1391 allready replaced crank sensor,cam sensor,fuel pump, cleaned or replaced gound straps, Ask an Expert Car Questions Jeep Questions ★ 2000 TJ wrangler 4. Check current conditions in Karachi, Sindh, Pakistan with radar, hourly, and more. 3+ years of experience in sales, preferably on the BARK UK platform. TANGERANG Postcode Database. Error Code P1391 is defined as CMP or CKP Signal Intermittent Condition. What Does P1391 Jeep Code Mean? In simple language, the error number P1391 indicates a problem with either your Crankshaft Position Sensor (CKP), Camshaft Position Sensor (CMP), or both. If the housing wasn't synced correctly, then it will cause the P1391 code to set, so you have to be sure. P1391 Jeep Code Meaning, Causes, Symptoms, & Tech Notes …. Check engine light was still on, but it started reading P0353, P0352, P0351, and P1391 (1st, 2nd, 3rd ignition coil codes). P1391 Code on a Jeep Wrangler, Cherokee or ">Fix & Repair a P1391 Code on a Jeep Wrangler, Cherokee or. P1391 - Loss of the camshaft position sensor or crankshaft position sensor has occurred Since its Friday Evening, I won't be able to get it into a shop until Monday. 10: 80,930: 98,907: 103,274: 8: 47121 - 47128. Approximately 50 miles later, stumbling, stalling and P1391 code. i replaced boh the Cam and the crank sensors with morpar sensors and it still seems to have a problem. P1391 code fixed 97 wrangler. Postal codes for all regions in TANGERANG. P1391 Jeep Code Meaning, Causes, Symptoms, & Tech Notes (With Video). m getting 2 codes, p0320 and p1391. 2003 Jeep Grand Cherokee Code P1391, Running Rough and Stalling - VOTD Robert DIY 212K subscribers Subscribe 7. P1391 99 Jeep xj 4. Throws P1391 code. 0 in it, this all start as few weeks ago when it started. Error Code P1391 is defined as CMP or CKP Signal Intermittent Condition. pickup,cap,plugs,rotor,wires,ecm,it all has had no affect,also the tach jumps when running rough. Trouble code P1391 usually pertains to an intermittent CMP/CKP signal, low input voltage to the glow plug or its circuit, or problems with a car’s wheel speed/G-sensor. No scanner - might want to confirm CMP timing. P1391 CKP or CPS issue Not the usual Issue. Use our interactive map, address lookup, or code list to find the correct zip code for your postal mails. I'm not very familiar with Cam/Crank sensors so. -Code 1391? (Intermittent crankshaft position sensor (CPS) or camshaft position sensor (CamPS) -When cold (under approx 200F), runs relatively smooth, but when hot (over approx 200F) starts surging? -When hot, freeway speeds, CEL starts flashing but don't notice any drivability difference?. Explanation: The ECM detected the actual CMP position disagreed with the expected CMP level. Loss of the Cam Position Sensor or Crank Position Sensor signal has occurred. Fix & Repair a P1391 Code on a Jeep Wrangler, Cherokee or Similar. Current weather in Karachi, Sindh, Pakistan. This is usually a fault on either the Crankshaft position sensor or the Camshaft position sensor. 200 jeep codes P0302, P1391, P0353, P0352, P0351 2000 Jeep Grand Cherokee Laredo 4. Defective CMP sensor What is CMP? What is CKP? My guess is Camshaft and Crankshaft?. I keep throwing a P1391 code I've replaced the crank sensor. An Immersive Internship Program that prepares me for the world's most in-demand career. 7 engine has a p0340 and p1391 codes. P1391 Chrysler Code Meaning, Causes, Symptoms, & Tech Notes. SOLVED: I have a 02 jeep liberty p1391 show up I changed. What Does the P1391 Jeep Code Mean? The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP) Signal. Crank Position Sensor or Cam Position Se Show more Show more Intermittent stall, no start - P0320,. We originall had only P0302 so we changed plugs, wires, coil, cam and crank sensors, and checked injectors. Along with a manual setup during installation, it also requires a scan tool to do, so a shop would have to do this unless you have access to a scan tool. How to fix error code p1391 on 1998 jeep cherokee sport Changed the crakshatf sensor checked the wiring and changed the computer Posted by danny beltran on Nov 18, 2011 Want Answer 0 Clicking this will make more experts see the question and we will remind you when it gets answered. If the housing wasn't synced correctly, then it will cause the P1391 code to set, so you have to be sure. Completion of fault code display on Check Engine lamp. Discussion Starter · Sep 5, 2012. Code P1391 Jeep Description The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP) Signal. I just got replaced (20 mins ago) the crank position sensor and now there is a P1391 code and it feels like the engine is misfiring or something, when it had misfire codes before the engine idled very nicely ( except for the few lumpy occasions). Quality Assurance Engineer with more than 3 years of experience in Software Quality Assurance activities in Agile environment including test planning, implementation, and execution. com 2003 Jeep Liberty 3 7L Replacing the Camshaft Position Sensor youtube. Error Code P1391 is defined as CMP or CKP Signal Intermittent Condition. 0 code p1391 allready replaced crank. *P1391-INTERMITTENT LOSS OF CMP OR CKP Reply Save Like R redheadmike73 Discussion Starter · #3 · Jul 15, 2020. Jeep Grand Cherokee - P1391 AUDImotive 4. 2002 Jeep wrangler s: (6 cylinder). P1391 CHRYSLER - Intermittent Loss of CMP or CKP Usually paired with a check engine light on. P1391 Jeep - CMP or CKP Signal Intermittent Condition P1391 JEEP Possible Causes Faulty Crankshaft Position Sensor (CKP) Crankshaft Position Sensor (CKP) harness is open or shorted Crankshaft Position Sensor (CKP) circuit poor electrical connection Faulty Camshaft Position (CMP) Sensor Camshaft Position (CMP) Sensor harness is open or shorted. 56: 75,672: 102,543: 109,232: 14: 47183 Cipocok Jaya: 34. Its symptoms include an illuminated CEL, erratic engine performance, no-starts, and white exhaust fumes. Intermittent stall, no start. Jeep Grand Cherokee & Commander Forums. Trouble code P1391 usually pertains to an intermittent CMP/CKP signal, low input voltage to the glow plug or its circuit, or problems with a car’s wheel speed/G-sensor. 1997 jeep grand with 4. 87K subscribers Subscribe 62K views 4 years ago Jeep Grand Cherokee WJ with a CEL. I read all about cheap Chinese sensors so I ordered a replacement under warranty through rock auto for the crank sensor. 96: 47,308: 57,346: 59,783: 10: 47171 Walantaka: 36. code P1391 "Interm Loss Of CMP or CKP" i know it is cam and crank sensors. What Does the P1391 Chrysler Code Mean? The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP) Signal. Jeep just shut down while driving. P1391 Jeep - CMP or CKP Signal Intermittent Condition P1391 JEEP Possible Causes Faulty Crankshaft Position Sensor (CKP) Crankshaft Position Sensor (CKP) harness is open or shorted Crankshaft Position Sensor (CKP) circuit poor electrical connection Faulty Camshaft Position (CMP) Sensor Camshaft Position (CMP) Sensor harness is open or shorted. The fleeting nature of a cam sensor sitting right on the fence between in and out of sync would be tough for the PCM to figure out, so it sets a blanket code (P1391). Jeep Grand Cherokee - P1391 AUDImotive 4. P1391 (M): Intermittent Loss of CMP or CKP - Loss of the Cam Position Sensor or Crank Position sensor has occurred. 1 Answer Anonymous Expert 66 Answers. In mechanical language, it means CKP signal intermittent condition. Code P1391 Jeep Description The Powertrain Control Module ( PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor ( CKP) Signal. The Diagnostic Trouble Code (DTC) will set when the PCM detects the actual Camshaft Position Sensor position disagreed with the expected Camshaft Position Sensor level. 87K subscribers Subscribe 62K views 4 years ago Jeep Grand Cherokee WJ with a CEL. NJWrangler01 Discussion Starter · May 6, 2016 So the other day I thought I felt a slight stumble and the CEL comes on but Jeep continues to run fine. Throws P1391 code. The task is not complicated; you can perform it on your own. P1391 Definition: CMP or CKP signal intermittent condition Explanation: The ECM detected the actual CMP position disagreed with the expected CMP level Probable cause: 1. What Does P1391 Jeep Code Mean? In simple language, the error number P1391 indicates a problem with either your Crankshaft Position Sensor (CKP), Camshaft Position Sensor (CMP), or both. The Diagnostic Trouble Code (DTC) will set when the PCM detects the actual Camshaft Position Sensor position disagreed with the expected Camshaft Position Sensor level. Anything someone can help me with. Catalyst efficiency below required level. 2003 Jeep Grand Cherokee Code P1391, Running Rough and Stalling - VOTD Robert DIY 212K subscribers Subscribe 7. Ask Your Own Jeep Question Thank you You’re very welcome. Jeep wrangler s: (6 cylinder). com Jeep Liberty Crank No Start Part II Posted on Sep 29, 2019 Not Helpful Flag Ad 41 Answers Flag 837 Answers Not Helpful Flag 85240 Answers. 2000 TJ wrangler 4. Jeep Cherokee P1391 Cam/Crank Sensor Code.