Car wont start cause fuel pump isnt getting power (wont prime). I checked the main relay and its fine cause it worked in my other integra. The #38 fuse in the main box under the hood blows everytime I turn the key to accessory. The acura service manual says the #38 is the main relay fuse. Now with the main realy removed the fuse does not blow, as soon as I hook the relay up the fuse blows. I decided to take my ecu out to see if anything was wrong with it. When I opened it up I got the worst smelling thing i’ve ever smelled. I noticed this one piece, might be a resistor idk. The thing looks completely burnt and melted. Now I dont think it happend recently while I was messing with the relay cause no smoke came out when I opened it and nothing was hot or anything. Now, when I took the ecu out and turned the key to accessory with and without the relay plugged in, the fuse did not blow. Could this melted piece in the ecu be causing the #38 fuse to blow everytime? Thank you in advance for anyone who can shed some light on this problem!
(Someone on another site told me its a diode but I havent gotten an answer as far as will that cause the fuse to keep blowing)
FYI: the engine is a b18a1 and the ecu is a pr4
I can not believe that no one on this site has any info on this or cant help at all…
WOW yeah that would blow a fuse. I might be wrong,but that dose have something to do with the fuel relay. Try plugging the relay back in without the ECU in and see if the fuse blows. Looks like you might need a new ECU.
well looks like the ecu is causing it to trip and short out. WHAT HAVE YOU DONE!! lol jk, but I’m pretty interested in seeing how that problem occurred. Sounds like somewhere along the line the polarity has been reversed (positive, negative). battery terminals? ground issues? fuse holders? bad soldering? main relay?