Vauxhall Vectra B facelift (1999 - 2002) - 2.0 misfire.

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Mon 26 Nov 2007 19:02
2.0 misfire. - daywalker711
hi can anybody help me??
i have a vaxhaul vectra 2.0l ls estate, it drives great around town and short distances but if i drive more than 2 hours i get a bad misfire not a constant one every 5 to 10 seconds or so the rev counter flicks up to around 5000 rpm it misfires then is ok then dose it again .
if i switch the ignition off for a few seconds then back on its cured for another 2 hours
what could it be
my ecu light isnt working so dont know if im getting a problem registered
can anyone help please
Dave

Edited by Pugugly {P} on 26/11/2007 at 20:34

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Mon 26 Nov 2007 20:31
misfire help - Screwloose
Dave

Only a guess; but the rev counter instability would suggest crank position sensor?

Who took the bulb out of the MIL light...?
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Mon 26 Nov 2007 20:37
misfire help - daywalker711
only had the car a few weeks never noticed the ecu light so dont know if it worked or not or has been removed before i had it,
but short test drive drove great and still does , its just long distance i have the problem as i do lot or motorway miles it is a problem.
would switching ignition on and off sort a fault with a crank sensor??
Dave
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Mon 26 Nov 2007 21:04
misfire help - Screwloose
Dave

It shouldn't; but with Vauxhall, I'll never say never....

A code-read might show something useful.
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