tweenierob

now i've got your attention lol
my car is misfiring slightly, i have changed the plugs and coil packs but no difference!! can ANYBODY advise as to what to do now (no petrol and matches hints) the car is underpowered and is occasionally firing when the inlet valve is open, so i can here the misfire through the filter, does anyone have any info that may help???? crank sensor, lamda etc etc
i am serious when i say that i will supply a good drink for any help that solves my problem!!!!!!!
please please please help
Rob

scoobyboy

sounds like timing to me have you had the belt changed recently or the lambda can cause a slight miss like feeling when accelerating

Moles Dad

I dont want your money, but I would agree with Scoobyboy, if you think it is firing whilst the inlet is open it must be a timing problem.

If you have had a timing belt recently it might be slightly out due to that!!!

You could check the timing using a strobe, the timing marks are on the front of the engine next to the crankshaft pulley.

Go through each thing, one at a time with the least expensive first!

Hope you get it sorted soon, MD.

tweenierob

MD i have a timing light but wasnt sure if i could use it as the leads use coil packs and might not have enough current in them to activate the strobe, i will try this morning and see if it does work, if so i can check the timing and hopefully find the fault!!!
As for the timing belt, it hasnt been changed recently BUT on other cars i have owned - if the tensioner is loose the belt can sometimes jump a tooth???????
MD if you could let me know about the use of the timing light before i start it would be much appreciated!!!!!!!!!!!!
thanks
ROB

ustolemyname??stevieturbo

iTrader: (1)

If you can hear it throught the inlet, it sounds like the cambelt has jumped a tooth. Check it out soon in case you do any damage.

tweenierob

not driving the car until its sorted!!!!!!!!!
gonna have a go now
Rob

Moles Dad

Any news?

I dont know about timing light on coil packs, would have thought it would "pick-up" ok.

MD.

tweenierob

no news yet, tried the timing light and it doesnt pick up off the leads, have to make a new post about it, cheers MD
Rob