P0171 and P0174 Codes after Stillen CAI - Help needed

SouthArk370Z · 06-17-2015, 11:28 AM

Quote:

Originally Posted by Jazzster

... The Short Term Fuel Trim was at 25% on both banks and went to 0% at the time it stumbled/idle dipped a bit. It's subtle and only last a second or so and then it goes away.

That info should be useful to someone that knows more about this than I do (I'm pretty good with cars from circa 1970 but modern cars are more of a collection of black boxes to me). Here's hoping one of the engine management gurus chimes in soon.

Quote:

Originally Posted by Jazzster

Data logging on the Dash Command app is pretty awesome. Definitely coming in handy!

I wouldn't want to work on a Z (or any other recent YM car) without an OBD/CAN scanner. The ECM will do most of the trouble-shooting for you. With a scanner, the FSM, and this site, one can trouble-shoot just about any problem.

Quote:

Originally Posted by Jazzster

Thanks for the ideas - I'll post back so hopefully can help others.

That's what this site is all about.

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