swap failed smog high hc(ppm)

[90CB7EURO]

high o2 content looks like a dead cat to me...

damn cant afford a new cat rite now

[alan lx]

Is the person at the testing center checking your timing, or is this at the shop where you have to take it to get it to pass? It being obd1 is why I am asking, why do they care what the timing is?

[wed3k]

because it affects emissions?

[alan lx]

because it affects emissions?

I completely understand what your saying. And you are 100% correct. I was just saying, from his posts above, the testing center where he lives or the shop he has to take it to, they must check the timing. The area where i live at, on our cars, the testing center just basically checks these 3 things:

1- fuel cap
2- visual inspection for the cat. (they slide a mirror under the car)
3- they do the tail pipe sniffer test.

If the testing center (or shop) is checking the timing (and they must be), he is going to have to correct whatever the issue is. I was going to say if it was like the area where i live, and if his car is close to passing, sometimes you can just retard the timing a bit, and it will pass. I am sure of this because it happened with my car. And after some calling around to local shops, they told me this is how they are getting some cars to pass (i am referring to retarding the timing just to get the car to pass). I don't agree with it because it makes the whole emissions testing thing a joke.

But from what he is writing above, that may not be possible. My bad if I caused any confusion. Good luck.

[wed3k]

correct however california emissions are so tough that you have to alter things that are still within limits to make it pass. there are other ways to get a car to pass but it is more on the smog technician itself.

ive seen octane and retarding the timing drop 200-300ppm nox on a car.