16v misfiring/stalling

[Rodg16v]

Just recently my 16v has started misfiring ( i think thats what u call it?) runs ok on idle but sometimes when accelerating it misfires, rev counter jolts back. It wasnt too bad but coming home from the gym tonight it stalled a couple of times.

Whats the problem ? Spark plugs ? Leads ?

Thanks

 

[number1]

if you mean the rev counter goes to zero and then jumps back up again then its a pre coil problem check your earth wires going to your top gearbox mount, when my mount snapped my car was doing this cos the bolt was just rattling around inside the bracket and wasnt getting a good feed

Dave

 

[Rodg16v]

Quote: Originally posted by number1 on 31 August 2005


if you mean the rev counter goes to zero and then jumps back up again then its a pre coil problem check your earth wires going to your top gearbox mount, when my mount snapped my car was doing this cos the bolt was just rattling around inside the bracket and wasnt getting a good feed

Dave





No not jumping back to zero Dave, just a bit mate.

 

[James Clio 16v]

Clean the tps (remember the position of the screws though), mine was filthy and was a bit hesitant, this seemed to sort it out.

It may not be this, but it is an easy thing to eliminate.

James

 

[Rodg16v]

Quote: Originally posted by James Clio 16v on 31 August 2005


Clean the tps (remember the position of the screws though), mine was filthy and was a bit hesitant, this seemed to sort it out.

It may not be this, but it is an easy thing to eliminate.

James

what is the tps ? and where is it located ?

 

[Rodg16v]

bump !

 

[James Clio 16v]

Throttle positioning sensor.

It is the red thing on the side of the throttle body.

I made scorings around the position of the 2 bolts that hold it in place, as it is factory set and needs to go back in the same place, otherwise it will totally screw things up.

When I took mine off, there was only a small patch of clean metal that was making the contact on the throttle body. Dont know the name of the thing it makes contact with. Cleaned it off with a wire brush and put it back on.

It made an immediate difference.

Also check that youre not getting oil in plug wells. If you are the rocker cover gasket has gone and the oil will be fouling the plugs. Easy job to do, makes a difference on the running of the car. Well it did in my case, cos it had gone round 3 of the plugs. Dont use patent gaskets!