spectra

Is my lambda sensor in my downpipe [decat] on my93 wrx, If so why is the thread much smaller than normal, or is it something else, 2 terminals silver braided cover connects under the boost solenoid. the probe is narrowtapering off and the plug is round with 2 spades inside . it is in the bottom of the downpipe ? any ideas

Scott.T

iTrader: (2)

I think thats the EGT sensor. Some of the earlier WRX seem to have these for some reason. Is yours an RA ?

Your lambda will be in the header/manifold

spectra

its not a ra just a wrx . Is that on the r/h side under the front ?

Dark Blue Mark

Yes. The small sensor you have found is the "cat on fire sensor"

Just unplug it if you're putting on a decat downpipe.

MB

spectra

Is the light on the dash next to the cel it looks like an exhaust with small dashes above it the cat on fire warning light . as it has been flashing and the car has not been starting , until the 10 min flashing has finished ?

Dark Blue Mark

Yep.

MB

dij

Yes,this is the exhaust gas temperature sensor light (the part fitted to the down pipe that you mention is this sensor,not the lambda.)

I have not tried disconnecting this on a wrx but I have on a crx and it didnt make a differeence.

In some cases you can put a resistor to it which will fool the ecu into thinking that the temperature is ok,but I havent done this myself.

Dark Blue Mark

What I said then

MB

Jay m A

iTrader: (2)

Just disconnect and forget.

dij

woops

wasnt reading carefully




Yes as DBM says

Dark Blue Mark

Just pulling your leg

MB