pass emission = lean

[sageprime1]

Can someone verify if running a stage I and/or stage II (if the stage really matters) lean in order to pass emissions test will work??? Also, if running lean to pass does work, will this hurt the engine even if the car is running lean during the inspection only??

[tran_nsx]

do u have a turbo in ur car now? im thinking about it and is worried about the emission test too.so if u do find out let me know.

[Polygon]

Running lean causes heat, so yes it can hurt the engine if you are running too lean. I little probably won't hurt. You should have nothing to worry about though if you aren't running high boost and as long as you've had the damn thing tuned right.

[BiGwiLLswiLLy]

u should be fine if jus for the inspection, i agree with him ...how r u gonna lean it out, r u doin it the old way n pullin a vacuum line to make a vacuum leak or how r u goin at it?

[boosted331]

You don't want the car to run lean. You want the cats to be HOT, motor at normal operating temp, and the AFR to be as close to stoich as possible. As long as you don't boost you'll be fine.

[sageprime1]

Everyone Thanks A Lot