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Hey everyone... A friend of mine recently picked up a '92 Integra GS with a blown motor (the crank was seized from what I can tell). He replaced the block, head and intake manifold with one from a '91, using the '92 distributor, wiring harness and injectors. After replacing the cap, rotor and tossing in a new battery, it fired right up... though it had a slight studder at idle, so we replaced the sparkplugs which didn't help. It was also throwing codes 9 (CYP sensor) and 41 (O2 heater)
Anyway, he drove it around for an hour or so without any problems and was on his way home when it sputtered a little and died (he said he was accelerating, shifting from 1st to 2nd).
I took a look at it this afternoon and found it had good fuel pressure but wasn't getting any spark as checked with a timing light and visually (the replacement cap was one of those bling'n clear ones). Over the course of a few hours we checked all three distributor sensors and their wiring (355 ohms ± 1 ohm, no shorts to ground), the ignition coil, replaced the spark plug wires (new aftermarket), replaced the ignitor unit (new aftermarket) and checked the ignitor unit wiring. I tried using my ECU (P28) in his car and checked his ECU (PR4) by plugging it into my car, showing the ECU to be fine. The grounds are solid and I didn't find any blown fuses. After reinstalling his ECU and cranking for about 10 secs, it spit out the code 9 again.
We're going to try to find a salvage distributor tomorrow, but if that doesn't fix things, I'm at a loss for where to turn next.
Anyway, he drove it around for an hour or so without any problems and was on his way home when it sputtered a little and died (he said he was accelerating, shifting from 1st to 2nd).
I took a look at it this afternoon and found it had good fuel pressure but wasn't getting any spark as checked with a timing light and visually (the replacement cap was one of those bling'n clear ones). Over the course of a few hours we checked all three distributor sensors and their wiring (355 ohms ± 1 ohm, no shorts to ground), the ignition coil, replaced the spark plug wires (new aftermarket), replaced the ignitor unit (new aftermarket) and checked the ignitor unit wiring. I tried using my ECU (P28) in his car and checked his ECU (PR4) by plugging it into my car, showing the ECU to be fine. The grounds are solid and I didn't find any blown fuses. After reinstalling his ECU and cranking for about 10 secs, it spit out the code 9 again.
We're going to try to find a salvage distributor tomorrow, but if that doesn't fix things, I'm at a loss for where to turn next.