Last resort for poor idle .

[robrado974 1]

I suppose now I need a vagcom , as I’m out of ideas .

The ISV has been cleaned.

The ISV has been changed.

I’ve had all the vac hoses off and there are no splits.

I’ve cleaned the plugs to the vac lines .

The MAF has been pulled whilst the engine is running and the note changes and it starts to stall.

I also experienced a loss of throttle / power which I think was fuel related.

I’ve fitted a new fuel filter. Obviously the new filter was dry and it took two turns of the key to fire, I would think this rules out the pump , if it was on its way out it should have struggled I would of thought.

The FPR is only a few years old too.

The plugs have only done 1500 miles or so .

The ignition leads are 1500 miles too.

Dizzy is fine and the rotor arm .

I’ve cleaned the throttle body too, ok so it was still on the car but ive opened the butterfly and got in as far as I could.

So I think the only option is now a vagcom check .

[Jim Bowen 1]

Vagcom would be a good idea, might give a suggestion of where to look.

[robrado974 1]

I think I will be clutching at straws otherwise Jim . I could spend hundreds replacing parts I don’t need until I found the problem.

[robrado974 1]

I’ve had another check this weekend.

I knew it wouldn’t help but it can’t help to try .

I sprayed easy start to check for vac leaks again .

The coil has been changed.

I’ve fitted new plugs .

I’ve removed the BMC , just in case it was dirty and playing the MAF up.

I’ve unplugged the ISV , whilst the car is running and it made a difference so it’s working,I then fitted another working ISV , just in case .

Result . It’s still the same sketchy idle .

[Jim Bowen 1]

Is it just the idle? Does it run ok apart from that?

[robrado974 1]

Yes jim . Pulls like a train . Maybe I have narrowed it down to the potentiometer?. I’ve checked the wires to the electrical plugs too. They are wrapped well and no amount of wiggling alters anything.