Donald Fierce
Recruit
- Joined
- Mar 13, 2018
- Messages
- 1
I have a 2001 volvo penta 5.0gi pefs that runs rich at idle. So much so that plugs are fouled and idle is rough.
I did the following: changed plugs, distributer cap and rotor, plug wires, new idle air control (IAC) valve, manifold air pressure sensor, thermostat. Noticed that IAC never retracts. Unpluged IAC and manually screwed pintle in to a point where the idle is smooth. What can I check next? Would a bad throttle positon sensor cause the IAC to behave this way?
I did the following: changed plugs, distributer cap and rotor, plug wires, new idle air control (IAC) valve, manifold air pressure sensor, thermostat. Noticed that IAC never retracts. Unpluged IAC and manually screwed pintle in to a point where the idle is smooth. What can I check next? Would a bad throttle positon sensor cause the IAC to behave this way?