i've got headers and high flow cat on my fd2 and it gives a CEL. when i scanned it, it gives the code p0420
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Can't you get o2 spacers so you don't get the cel?
how do we know who is nice fd
http://i870.photobucket.com/albums/a...ps9495f015.jpg
Are we talking about rx7 fd
sorry i meant on a rx8 eh heeeeeeeeee
Lol Wrong forum mate! Jokess....
Got my hopes up! Wanted to know how to fix it instead of spending money on a gamble.
I can't see why it wouldn't work though to be honest
secondary 02 sensor is a secondary o2 sensor after all. Its like 20 bucks for the parts
http://www.obd-codes.com/p0420
When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar.
A code P0420 may mean that one or more of the following has happened:
Downstream oxygen sensor (HO2S) wiring damaged or connected improperly
The engine coolant temperature sensor is not working properly
Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe
Retarded spark timing
The oxygen sensors in front and behind the converter are reporting too similar of readings
Leaking fuel injector or high fuel pressure
Cylinder misfire
Oil contamination