95 Honda VX owner

1995 Honda Civic VX, manual transmission, D15Z1 (Vtec-E) engine; California; all stock.

Issue: timing: looong story; I'll tell if need be. (yes, we jumpered the service conn).

Multiple ASE mechanics have said the ECU is failing.
ECU/ECM/PCM: 37820-po7-L02
which have become very hard to find.

I'm in the midst of investigating the original ecu:
I've replaced all eight electrolytic caps. Removed caps look fine and test good with my capacitance meter. Replaced with high temp, higher voltage rating parts.
Next I plan on checking power rails, clocks etc. (I used to t'shoot computer motherboards for a living)
I'd kill close relatives for a schematic, btw. Call me spoiled.
...

Anyway, if I end up needing to replace the original ecu, which ECU's would require the fewest modifications to work with this vehicle/engine? I know I'll need to install the external EPROM, etc. per pgmfi.org.

chrysler kid

What problems is your car having. I would say it is unlikely the ecu itself is bad, more likely a bad ground somewhere on the harness

What are your compression numbers.

Is your timing belt correct?

v4lu3s

there are none that i know of as your engine has an egr and may also be using a 5 wire primary o2 sensor. the only other honda ecus that would plug in are the accord/prelude ones that have the egr, but none will support the wideband o2.

SpokaneSpeed

And the timing and fuel maps are NOTHING like that of the z1.

Your only option would be another p07 if you want to retain proper functionality...

deschlong

iTrader: (8)

Yep start hunting but frankly it's unlikely it's the ECU. Go through the service manual troubleshooting procedures.

tony_2018

Issue:timing.

Doesn't explain much