sensor in down pipe!!!! not lambda!!

[james666]

ok folks i was wondering wat the small sensor at bottom end of down pipe is, i know its not the lambda as thats in my headers!! anybody got any ideas????

[the squiggle]

ok folks i was wondering wat the small sensor at bottom end of down pipe is, i know its not the lambda as thats in my headers!! anybody got any ideas????

Exhaust Gas Temp

It tells the ECU that your Cat is on fire

[james666]

ok cheers squirrel but is it a must to have it as its lying on my garage floor beside the cat!!!!! and its not on fire

[the squiggle]

ok cheers squirrel but is it a must to have it as its lying on my garage floor beside the cat!!!!! and its not on fire

On a std ECU i prefer them connected but on a mapped ECU it can be disconnected

[ScoobyBB]

On Fitting a de-cat pipe you still have to have the little sensor (heat exchanger sensor) plugged in an cable tied near the pipe, Otherwise the warning light will eventually come on indicating a fault. Some IMPORTED scoobies don't have LAMBDA sensors hence why such a nightmare for passing M.O.T emissions.

[arch]

I take it this is a classic which i dont know much about but on the new age you use a 2.2K resistor either plugged into the car side of the plug recepticle or cut the sensor off, solder the 2.2K resistor onto the wires and plug back in - sorted? I assume the cat on fire system on the classic will work exactly the same, resistor will cost about 10p from maplins.

[ScoobyBB]

Sorry mate forget to mention was tallking about classic model. Dont know anything about fitting resistor? never heard of that approach before but sounds like a better way of doing things. also een told about fitting a MAGNEX de-cat pipe is the best way,stops you getting turbo turbulence!