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Join Date: Feb 2008
Location: United Kingdom
Re: Bad Lambda? 156 1.8 TS V reg
Dependinding on if you have a CF2 or CF3 engine will determine if you have 1 in the downpipe under the car just infront of the flexi joint or 3, 2 right at the top of the pre cats in the down pipe and one underneath again. They are the easiest thing to change undo the plug and turn the probe anticlockwise to loosen, when fiting the new one a dab of anti-sieze compound on the threads is advisable, if it's the 3 Lambda CF3 then it's probably the one right underneath that's failed as the other 2 are only really there to see if the precats are working. Basically if you look at the exhaust system and see a wire going to a valve in it, that is a Lambda.