It's very convenient to have access to a good ECU!

The diagram is a troubleshooting flowchart. The top part shows two different voltmeter tests to do on connector B of the ECU. The lower part shows what the problem may be depending on whether the voltmeter tests are good (o.k.) or bad (NOT).

 

hey ron i pulled the ECU out of my car and put it into my brothers can and gess what his car is now doing the same thing as mine so i know that it is MY ECU

any ideas on where i can get a good one
Thanks for you help
Joe

 

Great, you pinpointed the problem. That's a big step. Try to find a replacement ECU at a salvage yard or on eBay.

 

ok i am kinda leary on getting a used on cause they are kinda hi and i am guessing that u cant get a neew one anymore

 

Check here for a new ECU:

http://www.hondaautomotiveparts.com/...ry4=&catcgry5=

 

hey might be a dumb question but will a newer year ECU fit in a 87?

 

RonJ is a really good source of info. i vote he should be a mod

 

I appreciate the thought, but I'd be a really mean mod. Best for me to stay a regular old member.

 

Yes ron you have been a great help


But got one more question i the Ecu i pulle out is #37820-PE7-6820
i called a import place and they said that i have the wrong one and that i need a PE1 modle

what can you tell me about this?

 

At this link: http://honda-ecu.com/partindex/ecuoem5.htm

I found both PE1 and PE7 ECUs that seemed compatible with a 1987 CRX 1.5L fuel injected Si.

Therefore, in my opinion, you should purchase the PE7 ECU that matches the current one in your car.