Does my downpipe have an O2 sensor
as above just got a decat dowmpipe havent looked at it but dont think it got a hole for the sensor, does my car have one in it downpipe, i have a 05 blob ee wrx ppp.
The main O2 sensor is in the exhaust header, down by the drivers side.
There is a second sensor for fuel trim on the end of the downpipe, just before it goes into the centre section.
There is a second sensor for fuel trim on the end of the downpipe, just before it goes into the centre section.
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