Quote:
Originally Posted by djpathfinder
Do yourself a favor and get an Uprev dyno tune and have that O2 sensor omitted...optimize your system (improve air-fuel ratio as well as free up even more HP and low to mid-range torque) and eliminate the HFC-caused CEL...kill 2 birds with one stone.
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The permanant fix to the rear o2 sensor CEL problem with HFC's or test pipes.