Hello. 1992 tracker 8 valve tbi 2 door 4wd 5 speed
Still investigating odd surges while cranking (starts at 3000rpm then falls down to 400rpm, then back up, then motor dies).
The fuel injector was previsouly hot wired to stick open. I removed the hot wire and now I get this issue.
I checked the injector resistance (looked good), replaced coil and igniter, still no fix.
Question about the brown wire going from the noise supressor to the tach and ECU:
For the ECU to properly pulse injector, does the brown wire need to be connected to the instrument cluster as well as A1 on ECU?
Basically - if I remove the entire instrument cluster, should the ECU still properly pulse the injector? I'm worried that hte connection on my cluster is messed up and I want to test the wire by just routing a whole new wire from the supressor to pin A1 to see if this resolved the issue.
If not, I might need a new ECU. (G103 ground went to alternator, not starter, so it may be burnt).
In additon I also routed an extra 6 gauge (awg) wire from ground G100 to alternator.
Still investigating odd surges while cranking (starts at 3000rpm then falls down to 400rpm, then back up, then motor dies).
The fuel injector was previsouly hot wired to stick open. I removed the hot wire and now I get this issue.
I checked the injector resistance (looked good), replaced coil and igniter, still no fix.
Question about the brown wire going from the noise supressor to the tach and ECU:
For the ECU to properly pulse injector, does the brown wire need to be connected to the instrument cluster as well as A1 on ECU?
Basically - if I remove the entire instrument cluster, should the ECU still properly pulse the injector? I'm worried that hte connection on my cluster is messed up and I want to test the wire by just routing a whole new wire from the supressor to pin A1 to see if this resolved the issue.
If not, I might need a new ECU. (G103 ground went to alternator, not starter, so it may be burnt).
In additon I also routed an extra 6 gauge (awg) wire from ground G100 to alternator.