michael.konor
forum member
Problem: Car starts fine, idles fine, but when I accelerate in gear or standing still and hit 1300-1500 rpm car starts running rough, as well as engine sounds like it's dieseling on the passenger side. Also, my wideband AFR gauge goes into the 16-17's, car throws a P0012 code, and the Short Term Fuel Trims go into the .700's on the passenger side, while the drivers side says 1.002's.
Now, this doesn't start happening until the car reaches at least 150*. I did some troubleshooting without solving the problem, and went into full scale and detailed troubleshooting mode:
1. Reloaded tune - no change
2. Went back to stock tune, then reloaded tune - no change
3. Loaded my e85 tune - no change
4. Emptied all fuel out of car, and refilled with 93 octane - no change
5. Swapped drivers side (DS) phaser to passenger side (PS) - no change
6. Swapped DS VCT solenoid to (PS) - no change
7. Installed completely different phaser to passenger side - no change
8. Changed to another stock cam I've got - no change (journals looked good)
9. Moved DS injectors to PS - no change
10. Replaced spark plugs with new ones - no change
11. Moved COPs from DS to PS - no change
12. Replaced 02 sensor - no change (02 sensors at idle are changing and are within .005 or each other)
13. Replaced knock sensor - no change
14. Troubleshot wiring circuits for PS cam sensor, PS VCT solenoid, DS cam sensor, DS VCT solenoid - no faults found. All circuits have continuity and no shorts to ground or other wires in bundle.
15. Troubleshot crankshaft position sensor circuit - no faults found
16. Replaced crankshaft position sensor - no change
17. Installed completely different VCT solenoid - no change
18. Replaced complete PS head - no change
19. Changed oil pump - no change (did this one last night)
20. While changing oil pump, I also changed the tensioners and cam chains - no change.
21. Disconnected PS and DS VCT solenoids - no change
22. Disconnected PS solenoid - **change**, but not fix. Instead of going into diesel mode between 1300-1500 rpm, it moved to 2000-2300 rpm.
23. If I rev the car while dieseling and everything connected, the roughness goes away around 3200 rpm and car sounds great. Once I let off the gas and the rpms decrease to 1800-1900, the dieseling comes back.
Note: When I changed oil pump, I also pulled the pickup tube and found debris in there which looked like the slinger destroyed itself. I've got no leaks anywhere in car. Cause?
I've done everything I can think of and need some thoughts, guidance, or paths to repair. Help?
Now, this doesn't start happening until the car reaches at least 150*. I did some troubleshooting without solving the problem, and went into full scale and detailed troubleshooting mode:
1. Reloaded tune - no change
2. Went back to stock tune, then reloaded tune - no change
3. Loaded my e85 tune - no change
4. Emptied all fuel out of car, and refilled with 93 octane - no change
5. Swapped drivers side (DS) phaser to passenger side (PS) - no change
6. Swapped DS VCT solenoid to (PS) - no change
7. Installed completely different phaser to passenger side - no change
8. Changed to another stock cam I've got - no change (journals looked good)
9. Moved DS injectors to PS - no change
10. Replaced spark plugs with new ones - no change
11. Moved COPs from DS to PS - no change
12. Replaced 02 sensor - no change (02 sensors at idle are changing and are within .005 or each other)
13. Replaced knock sensor - no change
14. Troubleshot wiring circuits for PS cam sensor, PS VCT solenoid, DS cam sensor, DS VCT solenoid - no faults found. All circuits have continuity and no shorts to ground or other wires in bundle.
15. Troubleshot crankshaft position sensor circuit - no faults found
16. Replaced crankshaft position sensor - no change
17. Installed completely different VCT solenoid - no change
18. Replaced complete PS head - no change
19. Changed oil pump - no change (did this one last night)
20. While changing oil pump, I also changed the tensioners and cam chains - no change.
21. Disconnected PS and DS VCT solenoids - no change
22. Disconnected PS solenoid - **change**, but not fix. Instead of going into diesel mode between 1300-1500 rpm, it moved to 2000-2300 rpm.
23. If I rev the car while dieseling and everything connected, the roughness goes away around 3200 rpm and car sounds great. Once I let off the gas and the rpms decrease to 1800-1900, the dieseling comes back.
Note: When I changed oil pump, I also pulled the pickup tube and found debris in there which looked like the slinger destroyed itself. I've got no leaks anywhere in car. Cause?
I've done everything I can think of and need some thoughts, guidance, or paths to repair. Help?