makemagick
New Member
I found an article before about this but cant seem to find it. I keep failing my emissions.
1st time I failed by 15%
I ran 94 + new oil change + new sparks + new pcv valve
2nd time I failed by 8%
added new o2 sensor (last one was still working but was pretty old)
added new air filter
3rd time failed again 64%
had 87 (10% ethanol) and 91 shell (no ethanol) mixed
Thought lower octane would burn faster thus cause less emissions
Sorry for the long intro but would 2 cats (one in the normal place) one somewhere more to the back? (or even in-line) solve my problems?
1st time I failed by 15%
I ran 94 + new oil change + new sparks + new pcv valve
2nd time I failed by 8%
added new o2 sensor (last one was still working but was pretty old)
added new air filter
3rd time failed again 64%
had 87 (10% ethanol) and 91 shell (no ethanol) mixed
Thought lower octane would burn faster thus cause less emissions
Sorry for the long intro but would 2 cats (one in the normal place) one somewhere more to the back? (or even in-line) solve my problems?
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