Thizizkai

iTrader: (3)

Hey guys need help with figuring out what I need to pass smog...car is a 95 Trans am lt1 k&n intake,bbk shorties are the only mods besides muffler delete....here are the test results

roughneck427

iTrader: (12)

Your O2 level should be around 1% and its 3.9% you have high NOX which is high cyl temp id say looks like a lean miss fire. The HC are high due to the misfire put a scanner on it and see what the LTFT or block learn are and post em up.

Thizizkai

iTrader: (3)

Alright cool thanks I'll have to check in the morning after work....there are no check engine light that would indicate anything so I'll get a scanner from AutoZone and see if that shows anything....

roughneck427

iTrader: (12)

Well 95 is a goofy year obd1 with an obd2 connector unless you have an open or short to ground on a sensor its had to set a ses light. Your best bet is to get someone with a scanner besides autozone and look at fuel trims maybe clean your MAF as well

Thizizkai

iTrader: (3)

Wtf...that sucks...ok I'll get the maf cleaned during lunch.and try to see if I can find a compatible scanner

allblacksrt4

iTrader: (3)

go to mexico smog place and stick $100 bill in each tailpipe

Vette310

^^^^ wont happen, the shop wont take the risk because it failed already... he needs to fix the problem.

roughneck427

iTrader: (12)

Make sure the 90 degree boot on TB is on correctly and no rips in it. Also look for any obvious vacuum leaks.

Thizizkai

iTrader: (3)

Ok I did a quick cleaning of the maf and check the elbow...no rips everything seems fine....still gotta find a scanner to see if anything shows up...I did notice extra heat on the driver side i'm assuming from the headers....seems hotter than normal tho...

Thizizkai

iTrader: (3)

Where can I get a scanner that is compatible? Auto zone had obd1 and obd2 but the port plug for obd1 wouldn't work and the obd2 couldn't read

Thizizkai

iTrader: (3)

anyone? all I need is the scanner...doing plugs and wires this weekend ..

Thizizkai

iTrader: (3)

Been doing some tune work....did plugs and wires...cleaned filter checked timing oil change Trans flushed and still noticed a miss...anything? I used single platinum AC Delco spark plugs...pretty sure I should use double...but it was laying around..I just threw them on...

1ltcap

low co2 too.......either cats removed, or dead. also, depending on the type of cat, the high nox could be a cat problem too.....but most likely an egr problem.