P1391 spark

Stock XJ Cherokee Tech. Examples, no start, general maintenance or anything that's stock, p1391 spark. Code P, Replaced plugs wires and cam sensor, runs worse.

With it's smooth look and comfortable ride, the Dodge Intrepid can still command attention. Thread Tools. I have investigated many factors and just wanted to run my findings by others before I just give up and blow the POS to hell. Replaced both Cam and Crank sensors I get 8 volts Should this be 12 volts? After changing the sensors and clearing the computer and trying to crank over there was no check engine light staying on Not that the check engine light came on before Get 12 volts at the coils when the car is cranked ecu is not pulling the voltage over the coil though. Do ECU fail often?

P1391 spark

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. It came up as P I have heard many different things as to what this means. The man at the shop said that it could not be the cam shaft or crank shaft because if it was it would have pulled up more codes. Another thing i was told was that it could be something with the distributor cap. But i recently just replaced the distributor cap and the spark plugs. What else could this be?

Send a private message to BlackXJay. Im guessing it might be a Crank sensor or i need to replace the whole dizzy just didnt have time today. Quote message in p1391 spark

Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. So you should chech it on our car models. Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark.

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it. The following are some of the most common mistakes that a technician may make when diagnosing a P code:. A P code is a serious code and should be addressed as soon as possible. If the problem is not corrected, it could lead to further damage to the transmission. P — Transmission Control System Malfunction. In conclusion, the P code is a diagnostic trouble code that refers to a problem with the transmission slipping.

P1391 spark

While its symptoms are only a few, its implications are pretty severe when left unaddressed, and potential causes are almost limitless. Furthermore, its triggers are highly dependent on application — something that this guide will help shed light on. Its symptoms include an illuminated CEL, erratic engine performance, no-starts, and white exhaust fumes. After all, P is a blanket fault code and turns on and off like a light switch.

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Originally Posted by 96FourOh. Theoretically you can drive for a few weeks or even months with a broken MAF sensor. Find More Posts by tiwvr1. Code Search Please fill the "Code Box" to find engine fault code. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. Originally Posted by tiwvr1. Top Contributors this Month View All. Cool thanks, Ill try that when I get time. Quote message in reply? Last edited by tjwalker; at PM. Examples, no start, general maintenance or anything that's stock. Received 1 Like on 1 Post.

The P code in your Dodge Ram is an indication of a possible issue with the crankshaft or camshaft position sensors. It is essential to understand this code to properly diagnose and resolve the underlying problem. The P code specifically points to an intermittent loss of the camshaft or crankshaft position sensor signal, which can result in engine misfires and reduced performance.

I then figured it was a sensor on the throttle body so I swapped the iac, tps, and map all with working sensors. Parts or components should not be replaced with reference to only a P DTC. You should also check that the spark plug gap is set properly. Send a private message to 96FourOh. Please consider creating a new thread. Sign up. Check Engine Light Dictionary Ways to clear check engine light on car panel. Put the wires back on just like the diagram shows. Find all posts by JoshRP. The following errors occurred with your submission. Posting Quick Reply - Please Wait. Thanks for your help guys. Examples, no start, general maintenance or anything that's stock. Thread Tools Show Printable Version.