Technical De-cat and lambda sensor

[SlinkyCinqi]

just wondering if i still need to have my lambda sensor plugged in when i'm running a de-cat exhaust system? probably a stupid question but thought i'd make sure

thanks people

Lenny

 

[rallycinq]

Yes, if you leave it unplugged the ecu goes into safe mode.

Cheers

D

 

[randomizered]

Just 'cause I'm bored...I'll make the mention in case anyone reads it;

cinq/sei spi..one pre-cat lambda,...leave as is regardless...its very important

sei mpi..two lambdas. one pre-cat, one post-cat lambda...leave pre-cat its needed as above.

The post cat must remain fitted (else it'll go into limp mode), but if running a decat, block any air to the sensor. I used tin foil wrapped tightly and sealed...the lack of ANY gas tricks the car into thinking the cat is fine

Kristian