O2 sensors and Kooks headers...

PJ-4.2L

Registered User
I purchased the kooks headers for my 4.2L and had to extend the wires for the passenger side O2 sensor-- suprise, suprise: Bad gas mileage (sp?).

I know some of the kooks owners had the bungs moved, but I want to know if there is another solution to the O2 sensor location problem. Is there another O2 sensor available that will work and have a longer line? I think that by extending mine, I messed with the resistances, and now I am getting like 11 miles to the gallon.

Any input?

PJ
 
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