jaksun
New Member
- Joined
- Apr 14, 2015
- Messages
- 2
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 1999
- Make / Model
- Ford
- Transmission
- Automatic
Guys this is my first time posting on here but i need your help. Im going crazy trying to figure out whats going wrong. My truck has a periodic rough idle and misfire. Giving me the codes P0301, P0401, P1171. ive replaced the cylinder heads, PCV valve, Dpfe sensor, dpfe hoses, coil pack, spark plugs, spark wires, egr solenoid, and vacuume tested the egr valve it holds pressure fine, did a top end cleaning, and injector cleaning, did a compression test it failed because the air would escape out of the other spark plug holes, and did a cylinder leakdown test and the rings are good. If any one can help me with this i would greatly appreciate it.