P0300 chrysler

Yet Another P thread. Yes, random misfire.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Finally took vehicle to dealer to have engine scanned. Long list of possible problems, bad plugs, ignition harness, possible bent valve or push rod, etc. Expensive and no real solution.

P0300 chrysler

Thread Tools. Turned key to restart car and it restarted right away. Check engine light constant on for a couple of minutes, then flashing for a couple of minutes, then alternating between constant on and flashing every couple of minutes. Did not stall again. Checked codes, and P is found. Changed spark plugs NGK properly gapped , coils, crank position sensor genuine MOPAR , fuel pump module including fuel filter, checked all wires and hoses everything looks good. Still, check engine light and P keeps coming back. New battery 6 months ago. What is the next thing to check to solve the P code problem? View Public Profile. Send a private message to Porky. Find all posts by Porky.

Took the the car to a mechanic friend of mine who is quite persistent. P0300 chrysler Forum. Stop guessing and get some data.

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Home » OBD Codes. There could be many different things causing the car engine to misfire, and in this article, you will find everything you need to know about this code. The code P indicates there are repetitive misfires on one or more cylinders in your car. You will often find this code together with another code of the specific cylinder the misfire occurred on. If the last digit of the trouble code is not zero, e. The misfire of an engine cylinder causes the engine speed to fluctuate. If this fluctuation increases, it affects the crankshaft position sensor, and the engine management module ECM can detect that one of the cylinders is misfiring.

P0300 chrysler

We recommend Torque Pro. This article will therefore deal with code P as it applies specifically to Chrysler vehicles. Note that while the PCM has detected random misfires, it can identify neither the root cause s of the misfire s nor the cylinders that are misfiring via the built-in misfire detection system. Therefore, the PCM will set this non-specific misfire code. Modern misfire detection systems typically use signals from the crankshaft position sensor to monitor the rotational speed of the crankshaft.

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Replaced MAP, no change. Compounding the problem, filling the tank from a gas can in the dark, I'd left the gas cap off. Still, check engine light and P keeps coming back. I opine I had one or more failing intermittently and causing the rough running, stumbling at idle and occasional dying. Running low or out of gas will cause low pressure hence the code. Stop guessing and get some data. Long list of possible problems, bad plugs, ignition harness, possible bent valve or push rod, etc. Every time this happens it is when she is city driving. Reassembled, started right up and problem solved. Now I think I may need to swap my injectors or fuel pump. Update Looks lke the p morphed into a p I need to get a fuel pressure gauge. Having a p on my special now. Checked each solenoid when removed by applying 12v and they all clicked and seemed to operate satisfactorily. Changed spark plugs NGK properly gapped , coils, crank position sensor genuine MOPAR , fuel pump module including fuel filter, checked all wires and hoses everything looks good.

The scary thing about the Check Engine Light CEL illuminating during your relaxing Sunday afternoon drive is the uncertainty of it all. The possibilities range from minor to serious, but it's always in your car's best interest to have the cause diagnosed quickly. In the case of the P error code that can be picked up with the OBD-II standard introduced for all US-spec vehicles from the model year, this code indicates an engine misfire.

Dealer changed computer, plugs, repaired harness? The car is a Chrysler C. Recommended Communities. Checked each solenoid when removed by applying 12v and they all clicked and seemed to operate satisfactorily. She is my baby Adding gas got you back to where you weren't sucking water into the tank. I try to start up the car, put it just sputters without catching. You might have water in the tank, which is fooling the gauge. It did not look bad or different compared to the rest and i had tried the easy wait to replace just the boot and coil part Might be something loose after you changed the plugs. Had to fish it out with a piece of stiff wire with the end bent to hook it. You need fuel, air, and spark. Might be fuel pump. I know. Since last year no code