Bmxr152
15+ Year Contributor
- 579
- 2
- May 27, 2006
-
Gardnerville,
Nevada
Okay so lately my car developed a misfire while cruising with very light throttle, most noticeable at lower speeds and not in boost or over 30% throttle. it will just miss for a split second then stop and repeat. Air fuels are around 14.7 while it misses and slightly drop but It does it so fast its hard to see. Ive Ohmed out my wires and plugs are new. I checked the ecu and no blown caps, but one of the chips looked like it got a little hot but not burnt or melted. Nothing on the datalog looks funky as in jumping around or anything except for the coolant temp was somewhat jumping around from 170-190 for a while and then it stopped. I ohmed out my injectors also and they tested 2.3-2.6 and also a boost leak test came out good but im using SD anyways. Ive been having an idle surge issue so I checked the ISC and #4&5 were dead. Any suggestions would be appreciated
Btw this all was more noticeable when I did my alternator relocation
Well just an update spent all day testing and messing with different circuits. I think when i pulled my manifold to do the alternator relocation i mixed #3 and #4 injector wires up. Swaped them back and it seems to be back to normal. Kinda stupid on my part since i didnt mark them when i did my wire tuck.
Btw this all was more noticeable when I did my alternator relocation
Well just an update spent all day testing and messing with different circuits. I think when i pulled my manifold to do the alternator relocation i mixed #3 and #4 injector wires up. Swaped them back and it seems to be back to normal. Kinda stupid on my part since i didnt mark them when i did my wire tuck.
