Rough Idle

[Garry]

So I went and bought an RRC. It runs ok when cold but starts to get a rough idle and stalls when warm. I changed plugs leads and rotor arm.
The insulation on the coolant sensor was goosed so I thought that was it but alas no.

Before I through too much at it is there any common issues I may have missed?

Garry

[Homestar]

What year is it? Carby, early flapper EFI or 14CUX EFI?

[bee utey]

Had one like that the other day, turned to be a dud aftermarket ignition coil. Replaced it with a Lucas original second hand one. Also worth checking the fuel pressure regulator behind the inlet manifold to see if it's dribbling fuel into the manifold via its vacuum hose.

[Garry]

Sorry, missed the basics

Its a 1990 3.9 V8 EFI

Garry

Will go have a look at the vacuum hose now. thanks

[Garry]

So I have replaced the vacuum hose, no fuel leaking and the coil changed out too. The problems I had seem so far to be gone. I will give it a good run tomorrow and see how it fares. Thanks bee utey.