Radjjak21
New Member
- Joined
- November 13, 2015
- Messages
- 8
- Reaction score
- 0
- Year, Model & Trim Level
- 2002 Explorer Sport Trac
Hello, I just recently bought a 02 sport trac.. It is showing p0174 lean on bank 2.. Theses are the things I have done :
1. Fixed/replaced the common corner elbow hose along with PCV valve..
2. Replaced intake manifold gaskets
3. Cleaned MAF sensor
4. Cleaned throttle body
5. Checked for additional vacuum leaks
6. Replaced fuel filter
7. Cleaned IAC valve
8. Replaced upstream o2 sensor on bank 2
9. New spark plugs and wires...
10. Checked exhaust for leaks
So... Runs like crap on cold start up, ruff idle, sometimes stalls on start.. Runs allot better when at operating temperature.. Does not overheat, What I have found ... When running cold, unplugging cylinder 5 spark plug wire idle does not change... When at operating temperature idle changes and runs worse when unplugged.. Sparking at coil, sparking at plug.. No misfire code... Could it be fuel injector in that Cyl? I have put fuel injector cleaner in it as well.. Planning on checking fuel pressure...
1. Fixed/replaced the common corner elbow hose along with PCV valve..
2. Replaced intake manifold gaskets
3. Cleaned MAF sensor
4. Cleaned throttle body
5. Checked for additional vacuum leaks
6. Replaced fuel filter
7. Cleaned IAC valve
8. Replaced upstream o2 sensor on bank 2
9. New spark plugs and wires...
10. Checked exhaust for leaks
So... Runs like crap on cold start up, ruff idle, sometimes stalls on start.. Runs allot better when at operating temperature.. Does not overheat, What I have found ... When running cold, unplugging cylinder 5 spark plug wire idle does not change... When at operating temperature idle changes and runs worse when unplugged.. Sparking at coil, sparking at plug.. No misfire code... Could it be fuel injector in that Cyl? I have put fuel injector cleaner in it as well.. Planning on checking fuel pressure...