I recently got the error code P0300. I have a 427 TT and have gotten error codes for the cats temps and I have read a little that this P0300 codes can have something to do with cats. Anyone know what might have caused this and if it is serious?
I've experienced the same code after a head and cam package, "multiple cylinder misfire" due to the larger cam I believe.
They edited it out also when tuning was done.
P0300 is a misfire code. Has nothing to do with the Cat. Emissions requirements mandate the engine be able to detect misfires. I think it does this by monitoring the crankshaft speed and checking to see that the speed changes slightly with every cylinder firing (not positive. There are other methods).
A lopey Cam might fool the PCM's detection algorithm.
I had this code on my '02, and it was caused by a chafing Injector Wiring Harness at the passenger side rear.
__________________
Now, Vortech powered!
_________Click for details_________
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Linear Mode
