-rhino-
NAXJA Forum User
- Location
- California
I have a 94 cherokee with the 4.0, I ordered the accel tune up kit with cap, rotor, plugs and wires.
I noticed the accel plugs that came with the kit were the wrong plugs so I went and picked up some champion copper core 412's gapped to .035.
Well after installing the new cap/rotor and wires I was getting a missfire and check engine light, it starts and runs, just a little rough, sounds like a single cylinder missfire possibly. I checked and re-checked the firing order. 1-5-3-6-2-4, pulled all the wires, re-installed to ensure a good connection. Still missfire and CEL. I even made sure the engine was at TDC and looked what direction the rotor was pointing to start my firing order.
So far heres all the combos I have tried without being able to get rid of the missfire/CEL.
-old cap/rotor with the new plug wires, new and old plugs
-Old cap/rotor, New set of wires from NAPA new and old plugs
-Old cap and rotor, NAPA wires and OLD plugs
-New Cap/rotor, NAPA wires, OLD plugs.
-New cap/rotor, new plugs, napa wires.
Im at a loss as to what to check at this point. Could I have knocked something loose? Could the coil have gone bad and is just a huge coincidence?? Or something completely obvious? Im not able to use the old plug wires because they came apart when taking them off.
Any help is appreciated.
I noticed the accel plugs that came with the kit were the wrong plugs so I went and picked up some champion copper core 412's gapped to .035.
Well after installing the new cap/rotor and wires I was getting a missfire and check engine light, it starts and runs, just a little rough, sounds like a single cylinder missfire possibly. I checked and re-checked the firing order. 1-5-3-6-2-4, pulled all the wires, re-installed to ensure a good connection. Still missfire and CEL. I even made sure the engine was at TDC and looked what direction the rotor was pointing to start my firing order.
So far heres all the combos I have tried without being able to get rid of the missfire/CEL.
-old cap/rotor with the new plug wires, new and old plugs
-Old cap/rotor, New set of wires from NAPA new and old plugs
-Old cap and rotor, NAPA wires and OLD plugs
-New Cap/rotor, NAPA wires, OLD plugs.
-New cap/rotor, new plugs, napa wires.
Im at a loss as to what to check at this point. Could I have knocked something loose? Could the coil have gone bad and is just a huge coincidence?? Or something completely obvious? Im not able to use the old plug wires because they came apart when taking them off.
Any help is appreciated.