My neighbor has a 96 626 with the 2.0 16v twincam motor. This is not a distributorless motor. We have changed both O2 sensors, swapped in Bosch +4 platnum plugs, Bosch wires. I pulled the dizzy cap and it needs to be replaced too, but heres the delimma....at 4000 RPM the car stumbles, kind of like it was not getting the air or fuel it needs. If it is at idle and you push the pedal to the floor it hesitates there too.....bad. I messed with the timing set it at 11 degrees BTDC per the service manual. That made NO difference. Is there an advance mechanism in this dizzy that is not working properly? Im not too familiar with Mazda cars so Im still learning. He has a check engine light. He had the codes read.....heres what he got.
1. Random misfire
2. Fault in O2 circuitry
3. Lean condition detected
4. Bank one fault :wtf:
Any help would be appreciated. he wants to trade it in for a "6"
1. Random misfire
2. Fault in O2 circuitry
3. Lean condition detected
4. Bank one fault :wtf:
Any help would be appreciated. he wants to trade it in for a "6"
