If yours has a cat converter and Lambda sensor then yours doesn't have the pot. meter on top of the air filter (or around there). If it's a 1.7i then the engine code for the catless version is B18EP while the cat. Lambda version is B18FP (basically same engines, just the latter has a cat converter and lambda sensor fitted, power is 102hp instead of 106hp.)
Why did it fail on emissions? Too high CO/HC (running rich) or high NOx (running lean)? Was it good on idle or was it bad in the whole rev range?
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