Looking for a little help.
- AMC 360 (healthy pre-swap)
- GM TBI junk yard parts and some new/rebuilt
- 1227747 ECU and TB from a 1991 Chevrolet Sport Van G20
- Used the 8-pin ignition control module and existing ESC with knock sensor
- Distributor is welded and disconnected from vacuum
- Fuel pump is brand new MSD mounted outside tank
- Coil is new Delco HEI
- Separate relays for fuel pump and other stuff
I spent much of the weekend reading through posts and double checking my wiring and assumptions, but I still can't get it started normally. I don't have a way of datalogging yet, sorry.
I have spark and fuel. No error codes.
MAIN ISSUE: the only way I can get it started is if I set the distributor WAY advanced (like about 50 degrees), and give it throttle while cranking. I got it started (real rough) and kept it running to warm it up enough that I could check the timing at idle, which showed about 10 deg. BTDC. I drove it around the block, actually drove okay (not great), got it back in the driveway and turned the key off but...it kept running I was out of time, so I just pulled the fuse on the TBI stuff and it shut off.
I'm assuming the fact that I couldn't shut it off means my ignition switch is bad. Anything else that could cause that? I suppose a stuck relay could do it.
My hunch is a bad ignition module, but it's getting spark, so...
Things I've already checked/calibrated:
- All typical voltage checks (coil, injectors, ALDL)
- TPS sensor adjusted to about .58V at idle
- Coil (resistance checks found online, checks out fine)
- System is well-grounded to engine block
[I have not "reset" the IAC because that requires a running engine and I just barely got it running]
There
- AMC 360 (healthy pre-swap)
- GM TBI junk yard parts and some new/rebuilt
- 1227747 ECU and TB from a 1991 Chevrolet Sport Van G20
- Used the 8-pin ignition control module and existing ESC with knock sensor
- Distributor is welded and disconnected from vacuum
- Fuel pump is brand new MSD mounted outside tank
- Coil is new Delco HEI
- Separate relays for fuel pump and other stuff
I spent much of the weekend reading through posts and double checking my wiring and assumptions, but I still can't get it started normally. I don't have a way of datalogging yet, sorry.
I have spark and fuel. No error codes.
MAIN ISSUE: the only way I can get it started is if I set the distributor WAY advanced (like about 50 degrees), and give it throttle while cranking. I got it started (real rough) and kept it running to warm it up enough that I could check the timing at idle, which showed about 10 deg. BTDC. I drove it around the block, actually drove okay (not great), got it back in the driveway and turned the key off but...it kept running I was out of time, so I just pulled the fuse on the TBI stuff and it shut off.
I'm assuming the fact that I couldn't shut it off means my ignition switch is bad. Anything else that could cause that? I suppose a stuck relay could do it.
My hunch is a bad ignition module, but it's getting spark, so...
Things I've already checked/calibrated:
- All typical voltage checks (coil, injectors, ALDL)
- TPS sensor adjusted to about .58V at idle
- Coil (resistance checks found online, checks out fine)
- System is well-grounded to engine block
[I have not "reset" the IAC because that requires a running engine and I just barely got it running]
There
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