masaidwakeupson
New member
- Joined
- Oct 5, 2020
Picked up a '91 940 Turbo a few months back.
When I got the car it was missing at idle. Wasn't a huge concern at the time.
When over 1000 RPM the motor ran just fine.
So, the car sat for a few months until I found the time to start giving it some attention.
I've replaced spark plugs and wires, distributor cap and rotor, fuel injectors, fuel filter, fuel pressure regulator, MAF sensor (+some other non-issue suspension components).
The car is still idling very rough, missing, and running very rich (very strong fuel smell).
I'm going to check and clean the PCV box and hoses and the IAC today and see if that helps.
I've checked for vacuum leaks as well. Found a pretty massive leave at the intake manifold gasket and replaced it. I've also replaced some dry rotted vacuum hoses and checked for additional leaks using carb cleaner. Couldn't find any more obvious leaks.
Is there anything that I'm missing that is notoriously known for causing similar idle issues?
When I got the car it was missing at idle. Wasn't a huge concern at the time.
When over 1000 RPM the motor ran just fine.
So, the car sat for a few months until I found the time to start giving it some attention.
I've replaced spark plugs and wires, distributor cap and rotor, fuel injectors, fuel filter, fuel pressure regulator, MAF sensor (+some other non-issue suspension components).
The car is still idling very rough, missing, and running very rich (very strong fuel smell).
I'm going to check and clean the PCV box and hoses and the IAC today and see if that helps.
I've checked for vacuum leaks as well. Found a pretty massive leave at the intake manifold gasket and replaced it. I've also replaced some dry rotted vacuum hoses and checked for additional leaks using carb cleaner. Couldn't find any more obvious leaks.
Is there anything that I'm missing that is notoriously known for causing similar idle issues?