MG RV8 3.9 Rover (Chipped - Idle issue)

V8Paul · Post by **V8Paul** » Tue Apr 19, 2011 12:37 pm

Hi,

I have a 1996 MG RV8 3.9 EFI which I have recently chipped with one of RPI engineering's Optimax chips. The car seems to pull very well and drives nicely but won't idle once warm. You can start from cold and it will run fine but then once you're out on the road it simply dies when you pull up to a junction, then needs to be restarted.

Is there anything simply I'm missing or do I have a problem?

Thanks

ChrisJC · Post by **ChrisJC** » Tue Apr 19, 2011 1:22 pm

Is it a simple 'chip' or were other adjustments required?

Lack of idle sounds like a duff idle speed control valve though.

Chris.

V8Paul · Post by **V8Paul** » Tue Apr 19, 2011 1:30 pm

Simple chip, but it states the timing should be altered. I haven't done this yet but didn't think it would stop it idling..

Where do I find the Idle control valve on the 3.9? I'm not not familier with all the components on the injected cars yet...

Ian Anderson · Post by **Ian Anderson** » Tue Apr 19, 2011 4:04 pm

Sounds exactly like mine
I'be lived with it for 5 years but it's a PITA

As you come up to an intersection decelerating blip the trtottle as you dip the clutch and it will idle fine

I believe it is the distributor getting too much vacuum on overrun

Ian