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valver poblem





I have recently brought a valver and it has been suberp, its got high mileage but has been extremely well looked after. its metalic black, full leather interior 17" alloys and a straight through magnex 3" decated, clifford alarm, and a k&n air filter.

but .....recently when i start it up after it has been sitting over night or when im at work the revs drop to around 400rpm and then shoot back up to 1500rpm and then it will idle around 900rpm it does this about 10 times and it stops.......its really annoyin!!! and when it happen half way down the road the car doesnt respond and when it does you better move cuz it shoots off,

iv been told that i could be a bad earth in the engine or the lambda senor *(oxygen sensor)

iv put the orginal filter back on to see if that made a difference and it hasnt can some one please shed abit of light cuz the car is a minta.:(


[Edited by Black 16v on 09 November 2004 at 7:24pm]

[Edited by Black 16v on 09 November 2004 at 7:25pm]
 


The lamba sensor could be the culprit, although Id also check the idle speed control valve (on the end of the throttle body).
 


Quote: Originally posted by Black 16v on 09 November 2004


I have recently brought a valver and it has been suberp, its got high mileage but has been extremely well looked after. its metalic black, full leather interior 17" alloys and a straight through magnex 3" decated, clifford alarm, and a k&n air filter.

but .....recently when i start it up after it has been sitting over night or when im at work the revs drop to around 400rpm and then shoot back up to 1500rpm and then it will idle around 900rpm it does this about 10 times and it stops.......its really annoyin!!! and when it happen half way down the road the car doesnt respond and when it does you better move cuz it shoots off,

iv been told that i could be a bad earth in the engine or the lambda senor *(oxygen sensor)

iv put the orginal filter back on to see if that made a difference and it hasnt can some one please shed abit of light cuz the car is a minta.:(


[Edited by Black 16v on 09 November 2004 at 7:24pm]

[Edited by Black 16v on 09 November 2004 at 7:25pm]


Do you come from the Coventry area by any chance?
 


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