View Single Post
  #7 (permalink)  
Old 04 Dec 2004, 04:04 pm
Roy and Rosa
Guest
 
Posts: n/a
Default Re: 89 civic HB. no spark. not main relay or ignitor

Found the problem.

The dealer came thru with a wiring diagram for an '88 civic wagon. Close
enough.
There are multiple fuses to ecu.
In the under dash fuse block, fuse 14 (I forget what it was labeled but it
wasnt obvious) was missing. I guess the previous owner had removed it and
didnt replace it.
It is control power for the main relay AND feeds injectors and fuel pump.
without main relay pulling in, no power was passed to ecu( from fuse 2 and
fuse 37).
replaced 15 amp fuse and got spark. for a few seconds anyway.
then fuse blew again.

Ended up being a shorted fuel pump

Thanks for all who responded.
Roy



---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.786 / Virus Database: 532 - Release Date: 10/29/2004


Reply With Quote