Misfire??

[I.C.]

HELP PLEASE!

This has happend a few times now with my S1 1.8i

Driving on motorway for 1-2 hours, and when lifting off slightly, power dies with what seems like a misfire. But its OK when pushing pedel down again. I pulled over and tried to rev engine, still feels like a misfire. Turn off engine, wait 5-10 mins, all OK.

This only happens very occasionally, the rest of the trime it runs OK

I have fitted Hurricane, 160 TB and de cat.

Any ideas please??

[r5gttgaz]

Did the fault arise straight after you fitted the new bits?

[I.C.]

No, they have been fitted for a couple of years. When I'm just doing short journeys 30-45 mins its OK. So it could be related to heat?

[NJS25]

An intermittent, heat related fault. Car misfiring.

Sounds like spark plugs to me. Has the car been serviced recently, has it been left in the rain?

Spark plugs can cause some very strange behaviour worth checking thenm out.

Regards, Neil

[bod27]

mine (S1 std apart from the usual bits) starts to misfire every so often, if i push the ht leads on the distributer cap that seams to sort it out until next time, been thinking of some new ht leads