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General => The garage => Topic started by: techno-len on 12 November 2008, 22:04
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:angry: hi people just signed up cos i am in need of a mk4 oc and sum advice . i have a mk4 20vt and the engine man light is constantly on i have done a code read on many occasion, and knocked the light out many a time, it seems to stay off for around 50 miles then ping n its that f**kin yellow light. anywho the codes read are as follows P0171 (system to lean bank 1) (please bare in mind that i had a coil pack go down 3 weeks ago resulting in the car having a new set of plugs and a singal coil pack.) since code read i have replaced the air mass flow meter, the next suggestions i have are to replace both the pre and post cat lambda sensors and also the automatic choke temp sensor please advise please PLEASE :smiley: CHEERS LEN
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welcome
does sound like your lambda sensor has gone as for which one i'm not 100% sure :undecided: i'd say pre-cat :undecided: