Nissan 370Z Forum - Check Engine Light Error Code P0300 multiple cylinder misfire.

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reynald3616

10-16-2015 02:09 AM

Check Engine Light Error Code P0300 multiple cylinder misfire.

Check Engine Light Error Code P0300 multiple cylinder misfire. Just installed a Fast Intentions LTH then after driving for few miles this error camed out. Other mods CAI and CBE but i have this mods before already and the error code didn't appear only now after the LTH install. Need help on how to resolve this thank you.

SouthArk370Z

10-16-2015 06:21 AM

First thing I'd check is if the exhaust manifold or piping is hitting something. If that's not it, you may need a tune. FSM may have some clues.

Venom13132

10-16-2015 09:28 AM

i had that code, replaced the spark plugs and got silicon breather hoses for the CAI and it went away.

GunWorxx

10-16-2015 02:06 PM

I've been having the same issue since I bought my Nismo. Dealership has changed the Gas, the oil, did a compression test, a leak down test. It still happens. It will be looked at by a Nissan Engineer on Monday. I'll let you know what they say.

Venom13132

12-15-2015 06:17 AM

Quote:

Originally Posted by GunWorxx (Post 3329370)

mine just came back on today after 6 months. What did the Nissan Engineer say?

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