okay, I am located in California. My civic just failed it's smog test.
Any help from a mechanic familiar with smog/emissions issues would be greatly appreciated! Thanks!
So first off, I failed in two categories.
1) Ignition timing was 8btdc and needs to be 12 degrees he said.
This caused my "HC" to measure in at 94 when the max allowed is 66, the technician stated.
2) The technician stated that when the ignition timing is corrected, it is going to cause my " NO" which also failed to get worse.
Max allowed at 15mph is 487 ( I had 2270)
Max allowed at 25mph is 774 ( I had 876)
The Tech. stated that he thought it was my oxygen sensor or the catalytic converter. What do you think?
My check engine light has never come on, which I though a bad oxygen sensor would do.
vehicle has 150,000 miles on it btw
Any help from a mechanic familiar with smog/emissions issues would be greatly appreciated! Thanks!
So first off, I failed in two categories.
1) Ignition timing was 8btdc and needs to be 12 degrees he said.
This caused my "HC" to measure in at 94 when the max allowed is 66, the technician stated.
2) The technician stated that when the ignition timing is corrected, it is going to cause my " NO" which also failed to get worse.
Max allowed at 15mph is 487 ( I had 2270)
Max allowed at 25mph is 774 ( I had 876)
The Tech. stated that he thought it was my oxygen sensor or the catalytic converter. What do you think?
My check engine light has never come on, which I though a bad oxygen sensor would do.
vehicle has 150,000 miles on it btw