Random Misfire

[02GTKB]

Occassionally my car throws a engine light saying random misfire, or a few different cylinders misfire...what could this be? Running Justin's email tune with a vmp tvs and cj tb..not sure if it's a low octane problem because tune is set up for 93 and a few times had no choice to run 91..also tune was programmed before adding tb. Please get back to me ASAP, thanks

 

[VNMOUS1]

NOT the best way to reach us. Please email justin@vmptuningdotcom and cc bj@vmptuningdotcom with full details : Car, mods, tune, etc.
And if you're in a hurry, call us Mon-Fri 9a-4p EASTERN.

In the meantime, clear the codes, drop your global timing down 2* when you reflash and let me know what happens. (by email)

The tb swap has no bearing.

Bj

Sent from my SAMSUNG Galaxy S3, not an "i" anything.