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with out seeing the car it sounds like the immobiliser/alarm is having problems and cutting out the fuel pump when you start to drive off.
quick test for this is to unplug the alarm and take it for a drive,
or
connect a test light to the fuel pump wire and see what happens to it when it stalls. ( should go out after it stalls not before )
also try another PGMFI main relay
I've got 2 idea that i think maybe the problem
1. Have you checked your earth wires? maybe 1 is cooked and the 2 item are using each other as a ground.
2. 2 wires have melted together and shorting each other out.
ill try my good main relay 2mrw on the car , and have alook at disconnecting the alarm too. I think its wires melted together too...
any idea guys on why the horn fuse keeps blowing now ?
Or why the "horn" bleeps thru the alarm siren ?
Sounds like the fault didnt occur long enough to melt insulation.
What car is it? assuming early DC2?
Does this thing have cruise control?
replace the blown fues with a globe,
the globe will light up ( instead of blowing the fues )
unplug stuff untill the globe goes out. gives you an idea where to look to find/fix the fault
find a circuit diagram of the car and follow that through, chances are a blown device somewhere.
hey guys , thanks for the help along the way, appreciated a lot, more update, the car seems to be ok to drive now, what we did was disconnected the alarm system, we found out the reason why it shuts as soon as it moved is brake, when we tested today, brake bleeped through immobliser as well like horn, so basicly the car is ok to drive now, but the brake light doesn't work , just wondering if anyone can help me out to figure how to fix the brake lights , the wire must have melted with the horn wires to short each other out , or something like that, cos it is pretty dangerous to drive around without brake light, i want to fix it asap, cheers guys
The horn and the brake lights run off the same fuse so i guessing there is an open between the fuse box and under the dash. If you need you can just run a contant power wire to the brake light swich until you find the open.:)
hey man, can you please give an idea how to do it , i could not find any wiring diagram, cheers
Hey dude,
which 10A fuse are u talkin about?
the brake lights are on the 20A horn fuse in the engine bay fuse box.
did u end up replacing the horn fuse?
hey man, sorry typed wrong , don't worry, yeah, i don't think i want to replace the fuse again since they might have a open between fuse box and brake switch. I will do it next week to find out, thanks manQuote:
Originally Posted by CRXer