- Joined
- Jun 2, 2012
- Messages
- 25,363
- Reaction score
- 8,370
- Points
- 113
- Location
- canada
- Vehicle Year
- 1994
- Make / Model
- Ford
- Transmission
- Manual
1994 Ranger 4.0l 4x4, manual trans
All electrics are original except spark plugs/wires and O2 sensors, 400k
A few days ago it stalled after 2 min drive time so still cold, wouldn't restart right away, figured fuel pump time, 26 years, I got no complaints, lol
It did restart after about 2min, drove it back home, tested pressure, went to just above 40psi key on and off, 30psi running, held engine at 2,500rpm stayed steady at 30psi, and held at 25psi after 6 hours key off
Cleaned MAF at that time
So drove it again yesterday, seemed fine for a few hours, then it started stalling out, but didn't stall, but when stopped idle would go high and low
IAC Valve
And CEL came on and I got a code..............522 clutch switch fault????
IAC tests fine, but cleaned it
After doing the code retrieval, jumper removed, tried to start but CEL stayed on, aha Crank sensor
Cycled key off and on started fine??
Checked crank sensor anyway, its fine
Did a "sanity test" on computer, unplugged MAF, TPS, IAC Valve,, one at a time and got a CEL and a correct code for each
Pulled out all fuses and relays in the engine fuse box and plugged back in to clean connections
So today it seemed fine, but got CEL while driving, and no code just 1 1 1
Didn't reset/clear, and no CEL??
Have done a few engine running tests and always 111
Not sure what to think but leaning towards a computer issue
All electrics are original except spark plugs/wires and O2 sensors, 400k
A few days ago it stalled after 2 min drive time so still cold, wouldn't restart right away, figured fuel pump time, 26 years, I got no complaints, lol
It did restart after about 2min, drove it back home, tested pressure, went to just above 40psi key on and off, 30psi running, held engine at 2,500rpm stayed steady at 30psi, and held at 25psi after 6 hours key off
Cleaned MAF at that time
So drove it again yesterday, seemed fine for a few hours, then it started stalling out, but didn't stall, but when stopped idle would go high and low
IAC Valve
And CEL came on and I got a code..............522 clutch switch fault????
IAC tests fine, but cleaned it
After doing the code retrieval, jumper removed, tried to start but CEL stayed on, aha Crank sensor
Cycled key off and on started fine??
Checked crank sensor anyway, its fine
Did a "sanity test" on computer, unplugged MAF, TPS, IAC Valve,, one at a time and got a CEL and a correct code for each
Pulled out all fuses and relays in the engine fuse box and plugged back in to clean connections
So today it seemed fine, but got CEL while driving, and no code just 1 1 1
Didn't reset/clear, and no CEL??
Have done a few engine running tests and always 111
Not sure what to think but leaning towards a computer issue