Welcome Visitor! Please take a few seconds and Hunter95R
Member
- Joined
- Jul 15, 2011
- Messages
- 12
- Vehicle Year
- 1994
- Transmission
- Manual
i recently replaced the 4.0 in my 94 extended cab with a 4.0 from a 94 explorer. since than it has been giving me fits. i get koer codes for "cant control high rpm during running test" and "curb idle out of spec". Continuos running codes are 172, 173, 176, and 177.
During driving, when i take off, it pops through the intake, and gives a jerky feel when cruising.
i have replaced both o2 sensors, coil, plugs, wires, injectors, crank sensor, ignition module, engine wire harness, and the ECM.
i changed the timing chain and the upper plenum gasket and also resealed the lower intake with all new gaskets. i have sprayed entire cans of carb cleaner all over the engine looking for a vacuum leak. None. i pull 18 inches of manifold vacuum at idle with 3-4 inches of crankcase vacuum.
the engine i put in had EGR and a cam sensor. my truck does not. i replaced all the EGR stuff (upper intake and drivers exhaust manifold) with the stuff originally from my truck when i put it in. my truck came with a simple plug/driver where the Cam sensor goes.
What am I missing or not doing? i really like my Ranger and have owned it for over ten years. i replaced the engine because of a burned valve in #6 cylinder.
During driving, when i take off, it pops through the intake, and gives a jerky feel when cruising.
i have replaced both o2 sensors, coil, plugs, wires, injectors, crank sensor, ignition module, engine wire harness, and the ECM.
i changed the timing chain and the upper plenum gasket and also resealed the lower intake with all new gaskets. i have sprayed entire cans of carb cleaner all over the engine looking for a vacuum leak. None. i pull 18 inches of manifold vacuum at idle with 3-4 inches of crankcase vacuum.
the engine i put in had EGR and a cam sensor. my truck does not. i replaced all the EGR stuff (upper intake and drivers exhaust manifold) with the stuff originally from my truck when i put it in. my truck came with a simple plug/driver where the Cam sensor goes.
What am I missing or not doing? i really like my Ranger and have owned it for over ten years. i replaced the engine because of a burned valve in #6 cylinder.
