Check Engine light code P0308 after new tune and CAI

[Slater_5.0]

Like the others have stated, P0308 is a cylinder 8 misfire. Can be anything from a bad connection on the cylinder 8 coil to a crank position sensor (I went through the same thing right after I bought my 16). Changing out your CAI unfortunately isn't going to be the cause of anything because that would cause a P0300 (random misfire code) not a specific cylinder misfire. It is possible that there is something wrong with the tune but that would probably cause a lean condition on that bank as well. This is one of those scenarios that you need to take it in to get it looked at.

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[stang9779]

I'm now getting P0301 and P0308. That being said I was able to capture this while I was Data logging when the motor revved on a cold start and caused the engine light to appear.

 

[Brmoorejr]

Put the car back to stock first
original intake etc.
load stock tune .
then do a crank relearn
if the problem is still there it will need to goto the dealer.

Also you can get this error if the tune is for a PP car and yours is not due to differences in the settings between the 2 cars .
I have experienced this first hand on my car and i had to put it back to stock first and do the crank relearn after they sent me the correct tune i have not had the issue since.

 

[EcoSwag1990]

What tuner are you dealing with?

 

[Sighlense]

If you read above I'm pretty sure its a sensor. Take it to the dealer. Has nothing to do with the tune.

Probably the LAST thing he wants to do at this point in time.

 

[dubster99]

My original lund tune was getting a random cyl misfire code that would pop up during part throttle cruising, giving just enough gas to keep the car going...think using cruise control, maintaining your speed in a gear at low rpm, etc. I could feel it misfiring. They originally told me to check plugs, which were fine. I then datalogged it and had a different person look at it. They sent me a revision which fixed it completely. It's not always a hardware issue....

 

[stang9779]

What tuner are you dealing with?

What tuner should I use?

 

[stang9779]

I put back the factory setup and the car doesn't throw a CEL

 

[Spartan_Stang]

http://www.mustang6g.com/forums/showthread.php?t=72379

Check out this thread. I had similar codes and it was the IMRC that was bad. It has been somewhat of a common issue lately.

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