1997 Z71
11-13-2012, 08:26 PM
I'm new to Tuning software and could really use some help.
I can’t pass smog. I have a, never fired, new motor in my 94 Firebird. Stock V8 with a 6 speed tranny. Hooker smog headers and a K&N air cleaner are the only mods. I purchased a computer (http://ls1tech.com/forums/#) from this forum that is a stock 6 speed tune. The idle in open loop is good at 800-850 RPM. The RPM in closed loop is 1000-1050. The low fan kicks on at 227 DegF and the high fan kicks on at 236 DegF. I am new to TunerCats Pro and could use some help. The smog guy suggested that I go after the O2 sensors and the Cat first. I have a Datalog of the O2 sensors. If someone could look at it, I could use the help. How do I verify if the computer in my car is tuned for a manual or automatic transmission?
Failed smog. Smog report.
CO was 2.17% at idle and 2.16% at 2500 RPM. Allowable is 1.00%.
HC at idle(1050 RPM) was 164 ppm with an allowable amount of 100 ppm.
HC at 2500 RPM was 86 ppm with an allowable of 130 ppm.
I can’t pass smog. I have a, never fired, new motor in my 94 Firebird. Stock V8 with a 6 speed tranny. Hooker smog headers and a K&N air cleaner are the only mods. I purchased a computer (http://ls1tech.com/forums/#) from this forum that is a stock 6 speed tune. The idle in open loop is good at 800-850 RPM. The RPM in closed loop is 1000-1050. The low fan kicks on at 227 DegF and the high fan kicks on at 236 DegF. I am new to TunerCats Pro and could use some help. The smog guy suggested that I go after the O2 sensors and the Cat first. I have a Datalog of the O2 sensors. If someone could look at it, I could use the help. How do I verify if the computer in my car is tuned for a manual or automatic transmission?
Failed smog. Smog report.
CO was 2.17% at idle and 2.16% at 2500 RPM. Allowable is 1.00%.
HC at idle(1050 RPM) was 164 ppm with an allowable amount of 100 ppm.
HC at 2500 RPM was 86 ppm with an allowable of 130 ppm.