S-10 Emission Problems
philipk65
07-19-2007, 09:09 AM
Hi!, I have had great advice on this forum and hope someone can help me out!
I have a '91 S-10 4.3 L. I'm live in California and it won't pass the emissions test. The only category it fails is the "NO - 15 mph" test.
Before I throw money at parts I don't need. What is the cause for the truck to fail the 15 mph NO test?
O2 sensor, cat. converter, EGR. could all be a cause, but if try to test each one the best I could.
What about the EGR vacuum soleniod?
Any advice would be great! Thanks Kevin
I have a '91 S-10 4.3 L. I'm live in California and it won't pass the emissions test. The only category it fails is the "NO - 15 mph" test.
Before I throw money at parts I don't need. What is the cause for the truck to fail the 15 mph NO test?
O2 sensor, cat. converter, EGR. could all be a cause, but if try to test each one the best I could.
What about the EGR vacuum soleniod?
Any advice would be great! Thanks Kevin
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