Hey all, i have a 1991 Integra GS model. I just relocated the battery to the trunk, 0 AWG wire , distribution block in the engine compartment that runs the fusebox wire and starter wire, into the block, then 0 AWG wire throught the ecu wire harness grommet, down the center of the car, through the passenger rear side panel, into a 150Amp fuse, out the back and to my battery. grounded to a drilled and sanded bare metal hole and secured. Car started after initial install. Went to go put the battery in a box. did so. left for the afternoon, came back and it didnt start. I checked battery voltage, 12.61V. put on a trickle charger. , Didnt start. key turns to ign, all lights light up. clicks but does not crank. even swapped batteries and did not start. INFO?
Do you have any diagrams or pictures? Your description is OK but still leaves a little to be desired in terms of specific detail and it also leaves out the alternator wiring. I assume you’ve checked all of your fuses?
yes i checked fuses. I did :
an available voltage check leaving the battery 12.5V .
Voltage avail to distribution block in engine compartment 9.6V
Voltage avail to fuseblock 6.4V
Voltage avail to starter 6.5V
i have some serious resistance along the 0AWG wire or at the distribution block, or both.
Is it possible i have too big of a wire running from my battery to the engine compartment?
i also touched nothing in terms of the alternator
Hmm, that’s very strange, there’s something screwing things up, you should definitely have full voltage at those locations. Post up some pics of the ground, the distribution block, and the fuse box.
So in terms of the fuse box… you removed the wire which goes to the battery and connected that to the distribution block? The other wire on the fuse box, the one right next to the battery wire, what did you do with that one?
i did nothing with that wire, it appeared to go into the main harness behind/below the intake manifold or the back of the block. i took the whole battery wire set up out and performed resistance checks on my wires. all wires were around .1 to .3 ohm which is normal and would not add up to a 3 to 6 volt drop. i will spread out my setup outside the car to mimic what it would look like in the car in a little bit , have to go help a friend check out a car they are attempting to buy.
OK good. That second wire goes to your alternator. Having that stay as is should be fine. Let us know what you find out, because it does seem very strange that you’d be seeing that voltage drop. 0 gauge wire should be more than sufficient, even 4ga works for most people that don’t have extra demands like an audio system.
Check the resistance of your ground at the battery and the grounds at other points in your car, like the starter body or engine block for example.
Any update? I am suspecting bad ground. If you are measuring the voltage at different points and using a local ground as reference, then if you have a bad ground at the battery you will get a voltage divider when you measure. Your reading will be referenced to the local ground you are using, not the battery ground.
When you moved the battery to the back, did you make sure that the ground that was originally there still connected to the inner front fender? It looks like it is a shared connection with the transmission ground.