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Thread: Z22 precat

  
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    digger's Avatar
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    i was looking to do the pre cat on my z22se and it says to take the oxygen sensors out. but wot do u do with them? do they go back in? do i need them for the car to run properly any help wold be good cheers.

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    2170:01:06
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    Hi and welcome to AstraSport.

    You only need to take them out so you can remove the cat/precat pipe form the car to get at the precat. Once you're doen you must refit them, or the ECU will get mightly upset with you.

    Check the How to's for info on getting the precat out - click my sig

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    cheers bud thats all i wanted to know, and thanx for the welcome. i've just ordered the parts for derestricting the motor so lets hope it goes well

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    Good stuff.

    derestricted airbox, Vectra C pipe and panel filter work well on a 2.2

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