ECU substitution question

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tich - 14 Jul 2005 10:01 GMT

I have an 88 Civic CRX DX 1.5L DPFI throttle body injection car.
Went to a wrecking yard yesterday to get a OBD0 connector to make a ECU
test harness. (Honda dealer wanted 245 dollars.) Saw a 90 Civic w/ the
same 1.5L DPFI that I have at Classic U-Pull It. Got the harness and
the ECU for 22 dollars. What are the chances the ECU could substitute
for the one in my car? If it's a no go I'll carve it up for its
connector and make a test harness.

Thanks,
Tich

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TeGGeR® - 14 Jul 2005 14:13 GMT

> I have an 88 Civic CRX DX 1.5L DPFI throttle body injection car.
> Went to a wrecking yard yesterday to get a OBD0 connector to make a ECU
[quoted text clipped - 3 lines]
> for the one in my car? If it's a no go I'll carve it up for its
> connector and make a test harness.

If the part numbers are the same, it's the same thing. If they're
different, they're NOT the same.

Having said that, all you need to do is make sure the number of pins and
the connector designs are the same. For your purposes, the actual signal
carried by each pin is not important.

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TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

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Jim Yanik - 14 Jul 2005 16:09 GMT

> I have an 88 Civic CRX DX 1.5L DPFI throttle body injection car.
> Went to a wrecking yard yesterday to get a OBD0 connector to make a ECU
[quoted text clipped - 6 lines]
> Thanks,
> Tich

What are you planning to test on the ECU,and how?
Are you making a "breakout-box" to allow easy metering of I/O signals?

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Jim Yanik
jyanik
at
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jim beam - 15 Jul 2005 02:13 GMT

> I have an 88 Civic CRX DX 1.5L DPFI throttle body injection car.
> Went to a wrecking yard yesterday to get a OBD0 connector to make a ECU
[quoted text clipped - 6 lines]
> Thanks,
> Tich

what problem do you want to test for? please describe the symptoms.
it's almost /never/ that the problem really is with the ecu.

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