Foxy Bingo Posted October 4, 2017 Posted October 4, 2017 Engine warning light came on and unverified codes P1147 & P1167 are showing. My Z has had a catback exhaust for a while however the codes have only just appeared, should I be worried or do the rear sensors not have a direct impact on the ECU tune? Many thanks Quote
ricochet Posted November 9, 2017 Posted November 9, 2017 These are the rear Lambda sensors codes and apparently do not affect the engine management. Mine has these codes but passes MOT emissions ok. It has modified exhaust system and this may be the cause. Zmanalex says they can be switched off as part of a re map. Quote
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