Does anyone know where I can get o2 sensor extentions? My check engine light is on cuz my hfcs are making them hot. I've heard this solves the issue? Or any other input on fixing this would be great!

 

what HFC's do you have? berk sells non-foulers for like $30 bucks i think

 

Yeah I have berks! K I'll look into it from them. Thanks!

 

If you are getting a CEL (check engine light) after installing high flow cats or test pipes, then you need this easy fix. Tried and proven to get rid the test pipe related CEL.
Get two packs of HELP! Spark plug nonfoulers - part number 42002 or 42009 (either will work) - these are readily available at Autozone, Checker, Pep Boys, etc.
Drill ONLY 2 of the nonfoulers out with a 1/2" drill bit. Fit 1 NON-drilled fouler into each test pipe. Fit 1 drilled nonfouler into the previously installed undrilled fouler on each bank. Finally insert your o2 sensor into the drilled nonfouler and reconnect the wires.
THAT IS IT! Reset your ECU and the CEL will not come back!

Help Part Number 42002 (18 MM). Be sure buy 2 packages and to drill out (1/2") only the ones which the O2 sensor screws into, not the ones that screw into the test pipes. The sequence is:
O-2 Sensor>>>Drilled Non-Fouler>>>Un-Drilled Non-Fouler>>>Test Pipe

You need two nonfoulers for each side so 4 total.

Install one non fouler into o2 sensor bung on each bank without any modifcation done to the NF (non fouler). Take the remaining two NFs and drill them out to 1/2" and screw one into each of the previously installed NFs on each bank. Then install the o2 sensors into these. Done -

Do not drill completely thru both of them after screwing together.
Drill only one on each side and screw the one you did not drill into the exhaust first and then the one you did drill into that and the o2 sensor into that.
It is only needed to drill one anti-fouler to allow clearance for the sensor if you bought the part number described.

 

 

 

 

Life saver haha thanks!!!

 

np, if you have access to a drill press its really easy, else you will need another way to hold the fouler while you drill it. dont forget to use lock tight after.

 

Alright. Can't wait to do this