Passed California Smog - failed HC at idle
I went from a hydrocarbon reading (HC) at idle of 140 (130 max) to 50. Also noticed a considerable increase in acceleration response throughout the powerband read by my trusty butt dyno.
I used a full gallon of xylene that cost $23.00 from the local paint store. I buffered it with a few jiggers of ATF fluid and Mystery Oil. Also, I swapped out the clean air filter for my Green panel filter and I drove the car like I stole it just before the test after burning off half of an 18-gallon tank to flush the engine with the new tank.
Cross posted over at USMB in Older Generation since I own a 1985 RX turbo 4WD.
Thanks for the tip!
Cheers!
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