ECU substitution question
 

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

Re: ECU substitution question
 

"tich" <hcit@comcast.net> wrote in
news:1121331597.705596.57230@g14g2000cwa.googlegro ups.com:

> 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.
>


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.


--
TeGGeR®

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

Re: ECU substitution question
 

"tich" <hcit@comcast.net> wrote in
news:1121331597.705596.57230@g14g2000cwa.googlegro ups.com:

> 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.
>


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.


--
TeGGeR®

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

Re: ECU substitution question
 

"tich" <hcit@comcast.net> wrote in
news:1121331597.705596.57230@g14g2000cwa.googlegro ups.com:

> 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
>

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?

--
Jim Yanik
jyanik
at
kua.net

Re: ECU substitution question
 

"tich" <hcit@comcast.net> wrote in
news:1121331597.705596.57230@g14g2000cwa.googlegro ups.com:

> 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
>

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?

--
Jim Yanik
jyanik
at
kua.net

Re: ECU substitution question
 

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

Re: ECU substitution question
 

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