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Discussion Starter · #1 ·
I have a boosted LS-Vtec, the car is tuned and other than a surging idle runs perfectly (surge is only over a 100rpm range)

HOWEVER, when driving at night i can see smoke in the headlights of cars behind me, but only at wide open throttle after vtec kicks in.

i have a 3inch exhaust with NO CAT

the amount of smoke looks similar to the car in this video I just cant tell what color it is at night
MikesGSR

The car does not seem to burn any oil.

Am being paranoid?


FYI: As you can tell by the dumb question, i only really know enough to be dangerous.
 

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SMOG = Fog and smoke. Is your car blowing fog?

Any reasonably intelligent tuner will tune the car to run a bit on the rich side to increase the longevity....especially if it's a daily driver.
 

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Devin_fox83 on Sep/28/07 said:
at wide open throttle my wideband jumps to a range of 11.9-12.1

Yes its pretty normal to see rich readings at WOT. LEt alone in VTEC on a car that probably hasn't been opened up for a few days with some buildup. I think its normal, but have not seen the video posted so can't say for sure if its bad or not.

And I agree with Justin, its smoke and not smog.
 
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