Post
by DurocShark » Mon Aug 04, 2008 6:19 pm
Update: I got my hands on an ECU from another bus. Same symptoms.
Wiring tested fine. All leads in the harness were well under 1 ohm, except for one (unrelated) that was 3 due to a bad crimp connector. I repaired it, then reinstalled the wiring, but I re-routed a few things so there was less tension on the wires. The stall seemed to go away.
I still have a wacky tach (digital and analog) where the needle and numbers bounce all over, and I still have bad misfiring.
Coil tests showed good for primary and secondary resistance. Just in case, I picked up a new crapalicious coil from AZ. No change. Crapaliciousness returned to AZ.
I tested the AFM resistance as mentioned above:
Pins - expected - actual:
6/9 400, 308
6/8 260, 199
8/9 70-140, 111
6/7 40-300, 58
7/8 100-500, 169
TS1 6/27 2800 max, 1772
A bit low on the first two, but I don't know what, if anything, that means.
I pulled both of my caps and did close inspections for burns and cracks. None found. I grabbed all 4 of my rotors, and found an unmarked black one with 4.5 ohms of resistance instead of the 5.5-ish of the Bosch ones. I tossed that in there and at least parked, the misfiring seems to have gone away.
I'm going for a test drive now, just waiting for the cops to leave who pulled someone over right in front of my house.
