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Can you identify this ECU?

Old 06-20-2004, 10:48 AM
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Default Can you identify this ECU?


I bought it, but I forget what it is; there are no stickers or markings on it anywhere. I know it's obd0 without an external rom. Actually on the side there's what looks like an ink stamp that says '91.4.25... so any ideas?
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Old 06-20-2004, 11:38 AM
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Default Re:Can you identify this ECU?

Actually.. I think that might be a PM5 or PM9 DPFI ECU..

From what I see of the picture, it's a USDM Civic ECU (based on the location of the CEL LED), and the second chip from the bottom, on the right, is _not_ an M38256AP EEPROM, like the PM6 and PS9 would have if that 91.4.25 stamp correctly matches the board.

There is normally a sticker on the A Plug socket, and a sticker right by where you read the stamp. Whomever sold this to you seems like they were trying to hide something if they removed both of them.
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Old 06-24-2004, 08:08 PM
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Default Re:Can you identify this ECU?

would it be possible to buy a daughterboard for this ecu to make it chippable?
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Old 06-24-2004, 09:07 PM
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Default Re:Can you identify this ECU?

Not if it's a PM5 or PM9.

They are dual point ECUs.
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Old 06-24-2004, 09:23 PM
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Default Re:Can you identify this ECU?

pm8 hf computer
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Old 06-24-2004, 10:16 PM
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Default Re:Can you identify this ECU?

I believe you can use a daughter board on a PM8.
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Old 06-25-2004, 09:59 AM
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Default Re:Can you identify this ECU?

I just looked through my old Ebay auctions; seller claims it was a PM8 HF computer, 88-91. I'll give the daughterboard a shot. Thanks guys. Anyone have that link to the thread on pgmfi where the guy is selling daughterboards?
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Old 06-25-2004, 10:18 AM
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Old 06-25-2004, 11:18 AM
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Default Re:Can you identify this ECU?

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