Also, that o2 sensor spacer you linked, you can also buy a pack (comes with 2) spark plug non foulers at autozone, made by a brand called "HELP" and part number is 42002, drill one out to 1/2" and bolt them together, bolt the sensor to them, and bolt that to your secondary o2 bung, which spaces it out enough to where your CEL wont come on.
Originally Posted by Splash45
Alot of new ppl always ask the same kind of question. How do i fix the engine light after installing a header? When this light comes on from the installation of a new header/midpipe, be aware that this has no effect on the performance of your car. its just a stupid reminder that the o2 (oxygen) sensor is finding a problem caused by when you removed or did something to the stock catalytic converter.
STEP 1
-purchase 2 spark plug anti foulers at your local auto parts store
-18 mm size
-made by HELP brand / part number 42002
STEP 2
-disconnect the negative terminal on your battery. this will reset your ecu
-take one of the anti foulers and drill out its center using a 1/2 bit ,
-this will increase its hole size and allow your stock o2 sensor to fit
STEP 3
-screw the drilled spark plug anti-fouler on top of the original
-in case you need to remove the foulers, use some kind of anti-seize on the threads
STEP 4
-unscrew your stock o2 sensor and place your anti-fouler fix in
-use anti seize on the threads -clean your cell (by wiping it off with a paper towel)
STEP 5
-reinstall your o2 sensor
-reconnect your battery (your ecu is reset)
-you have just solved the problem of the annoying light
At the end of everything, it should look like this in the same order ( o2 sensor-->1/2 drilled fouler--> undrilled fouler-->header or exhaust.
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