failed emissions test at idle!!!!

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Apr 2, 2002 | 10:23 PM

dvst8-rx7

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Posts: n/a

failed emissions test at idle!!!!

Hey guys i failed my test today....i failed in the HC idle test. F***ing mother B***** maximum allowable was 407ppm i got 1035ppm and noticed a jump from previous test of CO, it was 0.33ppm now its 2.75ppm
so that sucks at idle...my car idles at 750-800 rpm thats fine right? i thought so. so how come the readings so freakin high...help please!!!

86 GXL NA

Apr 2, 2002 | 11:36 PM

Keith

Senior Member

Joined: Mar 2001

Posts: 501

Likes: 1

From: Lawrenceville,Georgia,U.S.

Here are some possibilities: Cats are gone, ACV is not injecting sufficient port air (ACV, Air Pump, or switching/releif solenoid valves defective), or too much fuel at idle (leaking injector, misadjusted idle mix adjust screw). Could also be bad water temp. sensor. That should get you started anyway. Good luck!

Irv, Keith's dad

Apr 3, 2002 | 08:01 AM

Cwaters

Just Messing About

Joined: Feb 2001

Posts: 1,020

Likes: 0

From: Just West of Atlanta

what have you done since your last test? Try checking the TPS. I bet it's way off.

Cory

Apr 3, 2002 | 09:50 AM

djantlive

Rotary Enthusiast

Joined: Feb 2001

Posts: 1,213

Likes: 0

Also, run a bottle of those smog check gurantee cleaner. Finish running the tank and then try for a smog check again.

I would still look into the things ppl have suggested too.