P1391 spark

With it's smooth look and comfortable ride, the Dodge Intrepid can still command attention. Thread Tools.

Stock XJ Cherokee Tech. Examples, no start, general maintenance or anything that's stock. Code P, Replaced plugs wires and cam sensor, runs worse. Thread Tools. So I was at advanced auto and the guy told me his cherokee had the same code and it was the cam sensor but they dont sell them seperate from the distributor.

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? The jeep has been doing this weird thing where it is almost like hoping forward while you drive and when you press the gas hard it backfires and doesn't accelerate that much.

AVS Forum. Is there any way of this being related or am I just over thinking it being the crank positioning sensor or cam position sensor??? Examples, no start, p1391 spark, general maintenance or anything that's stock.

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.

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. But in some cases, the code could be set off by a jeopardized PCM or problems with wiring and connectors. As already established, this fault code may be worded differently depending on the car manufacturer. Implicated components also vary depending on vehicle make. Below are examples of how the error code is defined for some of the biggest names in the market:. However, it would be unwise to assume having a faulty sensor at the first display of this code since the latter is activated by unusual spikes in vertical acceleration — an outcome naturally caused by potholes, misfiring, or transmission line deviations.

P1391 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. If you are experiencing any of the symptoms associated with this code, it is best to have a technician diagnose and correct the problem as soon as possible. Visually inspect the transmission and the related components for damage.

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The car had no spark. Related Topics. Email this Page. Sign up. Put the wires back on just like the diagram shows. Quote message in reply? Send a private message to tjwalker. Well, replaced the dizzy put it back togeter and wouldn't even start. So I bought a dizzy and just replaced the plastic sensor looking thing which i assume was the Cam sensor. Stock XJ Cherokee Tech. The crank sensor is arguably one of the most common engine management sensor failures on the 4. Could this be related to the code?

The P code in your Dodge Ram is an indication of a possible issue with the crankshaft or camshaft position sensors.

Related Topics. My next step was to get a mechanical fuel pressure gauge and check the rail but on the way home it threw a p code. Posting Quick Reply - Please Wait. It is basically behind and below the back side of the passenger side valve cover. Thread Tools. So you should chech it on our car models. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. And if you've seen my posts, you know that I'm not a big fan of aftermarket for either of these sensors. Yes they both are original from what I know. Cool thanks, Ill try that when I get time. Do ECU fail often? Email this Page. If one was failing could it cause the rough idle? Thread Tools Show Printable Version.