I have had my 1987 300zx Turbo for about 4yrs now. It had no prior problem passing the smog test(California). But this year I took it to a smog check station and it failed with flying colors. Does anyone have any suggestions to what could be the problem(s). Anything will help thank you.
-Jeff
-Jeff
Über User
try doing a full tune up, and finding a way to clean out carbon build up in your engine, however the Z31's do it. mabye your cat started rusting out? i dotn know, just some basic suggestions from me.
Registered User
Quote:
-Jeff
Before anyone can give you any solid advice you need to let us know what areas it failed in. You should have gotten a printup report of the test. Post up your results. Based on where you failed we can tell you the most likely reason why.Originally Posted by jeff87
I have had my 1987 300zx Turbo for about 4yrs now. It had no prior problem passing the smog test(California). But this year I took it to a smog check station and it failed with flying colors. Does anyone have any suggestions to what could be the problem(s). Anything will help thank you.-Jeff
Über User
true that^^^ but yeah my tune up idea proly wont help you if you failed with "FLYING COLORS" its just to help outski.....
Registered User
Oh no, you had good ideas. I was just letting him know that if he can let us know how he failed then we can narrow it down for him instead him having to try everything possible. A tune up and what not is probably a good idea anyways if it's been a while 
Queen of Yachts
cat was what mine needed--mine is 1986 turbo. but check out what is the off part--nox or co--and then you'll know better--the tech had no clue???
