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Author Topic: vectra z18xe  (Read 7218 times)

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Offline s.thompson16

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vectra z18xe
« on: August 19, 2009, 09:15:21 »
 Hi got a vectra with z18xe engine. Failed uk mot test on exhaust emmisions co 5.30%. Tried new air flow meter and lambda sensor in exhaust but still the same. Anybody had this problem or any ideas what could be causing this ? hydrocarbon reading also high and lambda switching low ?


Offline kratmel

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Re: vectra z18xe
« Reply #1 on: August 19, 2009, 19:37:52 »
Try to cheсk or replace temperature sensor. Same times wiring or harness for this sensor bad. Is the live data from this sensor correct?
How mach miles driving your car? It's engine performance good? Is the engine mechanics correct (timing belt) ?