Engine Run-On in EA MPFI (Converted)
Hi all. I've got a 10/90 EA that has been converted to multi-point. Just recently, I've started getting engine run-on, and it's been getting progressively worse, to the point where this morning I had to let the fuel pump go for 2-3 times to get fuel back into the rail.
Some other info: I think my ISC is buggered, when I'm in gear at idle it sits at around 6-700 rpm, however, when I put it in park after it's been driven, the idle kicks up to around the 1800 rpm mark. It then dips really badly when I put it back in gear.
The other thing is my cat converter is restricting exhaust flow quite badly at the moment, it's stuffed.
So basically, what should I be looking for to stop the run-on? Could the faulty isc be causing it, by still letting air into the manifold after the car has stopped?
Any other ideas? Any help would be appreciated.
EA GL-Ghia pseudo operator
3.9 MPFI converted 4 speed
2.5 inch exhaust
NC Ghia interior (except rear trims)
Fairmont audio (with 4 speakers)
S-pac cluster with white dials
Trip computer and Fairmont interior lighting.
Half wired Ghia BCM.