Emissions
Race Director
Joined: Jan 2006
Posts: 10,039
Likes: 0
From: CA
Could be your cat,and I don't know any mechanic in a can that remedy that.I've definatly seen this miracle juice in stores,but don't know anyone that used it.I have heard of some using a mixture of gas and ethanol in their tank,but you have to get the mix just right or it'll run like crap and still won't pass.My advise is to fix the problem and forget about the snake oil.
If yo have a bad component in your car that stuff wont help it pass. Most common things are EGR, cats, injector problems.
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,871
Likes: 0
From: sterling va usa
The cat has only 5000 miles on it. I got it from echlers light weight. How can I tell if it is injectors,when its not throwing any codes and its not missing. The plugs& wires only have 3000 miles and I ran it last night in the garage in the dark and ran my hand on every wire no ark. It passes at 25 mph but not at 15 MPH
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,871
Likes: 0
From: sterling va usa
Ok I just got back from driving the vette on Rt66 went 150 miles. At 76 miles a hour the instant fuel guage said 38 miles per gallon this was on a flat level strech. When I got back to the house i took my finger and rubbed the inside of the tail pipe and almost nothing on my finger. So why won't the damn thing pass emissions. HELP
Le Mans Master
Joined: Dec 2002
Posts: 6,715
Likes: 2
From: Santa Teresa New Mexico
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
No - I hook up a scanner and check fuel delivery. It tells you all you need to know (if it's OBD 1). For OBD 2, you also need to look for Readiness Codes, but only the '96 C4's need to be concerned about that. High HC's and CO often point to too much fuel The ECM corrects for that, unless it can't, or it thinks there isn't enough so it adds more than it needs and you flunk the test. Scan it and see. Repost.
