I new to this site but please help me -
I have an 88 Si Accord, I have EFI, extractors, lowered to the ground and low profiles. Had it for six years and not a problem - goes like thunder and drags most cars.
Till yesterday, when I was doing some work on the body and jump started my car with a portable power pack (which i have done million times before) and while running I took off the Jump starter of the positve lead and the car crapped itself and started running beserk.
Then i noticed the + terminal was very loose, as I was using an old, dead battery as my good one was in a van I just bought. (just to hold the posts and complete the circuit)
I immediately turned it off and tried to restart - dead.
I had blown 3 fuses in the underhood compartment - which I replaced and then put my good battery back in and tried again.
Immediately fuse 1 blows in the underhood relay box as soon as the ignition goes to on. (when the fuel pump primes)
My fuel pump no longer primes as the fuse blows immediately - which to me means a short somewhere. When I disconnect the wiring harness from the MAIN RELAY under the dash, the fuse no longer blows.
I still have spark and the engine cranks, but the engine light does not go out. It is not throwing any codes, and i think I may have caused a voltage spike which has fried the ECU (NO NO NO HELP ME)
If this is the case how come the ECU is not protected by fusible links and how come all of this can be caused instantly by disconnecting a power pack from a dead battery with a loose positve terminal.
I don' t understand as I and many other people have had loose posts and not caused this kind of damage.
Anyway - how much is a new ECU (worst case scenario)
Please help me as the car has completely fried itself. I will continue to check the MAin relay and all other components of the fuel system and electrical system, but I would be much apprieciative if someone with more experience could help me out.
Bookmarks