Failed emission test....hydrocarbon help..
Thread Starter
Senior Member
Joined: Mar 2001
Posts: 560
Likes: 0
From: Gary, Indiana
Car: 00 Trans Am/89 IROC
Engine: LS1/L98
Transmission: 4L60/700R4
Failed emission test....hydrocarbon help..
Grrr, failed emissions with the IROC
hydrocarbons were high. I figured it needed a tune up anyway but wanted to try the test first. I just got done putting plugs,cap,and rotor in.
Think it'll pass now?
The std was 1.4gpm and mine was 2.09gpm
Man I almost for got the plugs on it were a semi pita to change....
hydrocarbons were high. I figured it needed a tune up anyway but wanted to try the test first. I just got done putting plugs,cap,and rotor in. Think it'll pass now?
The std was 1.4gpm and mine was 2.09gpm
Man I almost for got the plugs on it were a semi pita to change....
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Put the factory injectors and chip back in, you'll have a much better chance of passing the retest.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You could turn down the pressure, but that has the negative effect of reducing the misting.
If you really want to make sure you pass, put in 305 injectors.
If you really want to make sure you pass, put in 305 injectors.
Thread
Thread Starter
Forum
Replies
Last Post
[CA] 700R4 trans & parts
6998poncho
Engine/Drivetrain/Suspension Parts for Sale
0
Sep 25, 2015 02:56 PM
