Horrible idle, jumpy, dies...need help
Hey guys, I have an 02 Ranger 135k miles on the 4.0. I'll get straight to the point, I have a horrible idle. It is fine until it warms up....then it starts going "vroom vroom vroom vroom" then if you dont feather the throttle it just dies. I also have two codes, one for each bank running lean.
I've replaced the IAC valve, MAF sensor, 02 sensors, spark plugs and tried some seafoam in the manifold. I'm thinking next I'll look at fuel injectors, but I'm running out of ideas. Any input is appreciated! Thank you!
Last edited by Mistersponge; 12-21-2011 at 01:03 AM.