2007-07-24 13:58:50 · 4 answers · asked by Denice P 1 in Cars & Transportation ➔ Maintenance & Repairs
Could you put in an additional please. Give us the numbers or what of the 3 failed. If it failed HC at idle and cruise, it;s most likely the catalytic converter. If it failed cruise but passed idle, it might be fuel injectors, spark timing, etc. There are 3 gases that are checked at both idle and cruise.
(HC, CO and NOx) Excessive numbers at any of the 6 test points will fail the car.
2007-07-24 14:11:41 · answer #1 · answered by shopteacher 4 · 0⤊ 0⤋
What didn't pass? I assume it was checked during the yearly inspection in a state that requires reduced emission controls. It could be the catalytic converter or a smog pump that is failing. I recommend a mechanic to find the cause.
2007-07-24 14:04:35 · answer #2 · answered by david c 2 · 0⤊ 0⤋
could be any number of things, all depends on how badly it failed. Could be a bad EGR valve, O2 sensor, bad catalytic converter, out of tune, dirty oil, etc. etc.
good luck.......
2007-07-24 14:04:31 · answer #3 · answered by mailbox1024 7 · 0⤊ 0⤋
02 SENSOR
2007-07-24 14:02:01 · answer #4 · answered by CHRIS B 1 · 0⤊ 0⤋