Strange issue, need help

[ShogunR32]

The other night I did a simple oil change and spark plug change. The next day on my way to work the car died on the highway(70mph). I would give it gas but it just slowly revved down and died. I would try to crank it but it wouldnt start(not getting gas it seemed).When i got towed home i checked the plugs and they were all very white. I then turned the key in accessory and did not hear the pump. I then pulled the pump and tested it and it turned on. So then after i put the pump back in and all the cars electronics are bugging like it not getting any power. The positive cable doesnt look good but i tried cleaning it and the car still wont light up correctly(dash electronics). Things ive done: 1. Swapped battery
2. Swapped ecu
3. Checked fuel pump
4.Checked fuses

The main fuse off the positive cable is still intact but the postive cable connector is not pretty. Would this cause the fuel pump not to get power and then mess power for everything else? When i put a multimeter on the battery connected the voltage is all over the place. The stock positive cable is $364 from ecs and i just want to make sure before i spend that kind of money on the oem cable. TIA!

-Ron

[customa4]

The other night I did a simple oil change and spark plug change. The next day on my way to work the car died on the highway(70mph). I would give it gas but it just slowly revved down and died. I would try to crank it but it wouldnt start(not getting gas it seemed).When i got towed home i checked the plugs and they were all very white. I then turned the key in accessory and did not hear the pump. I then pulled the pump and tested it and it turned on. So then after i put the pump back in and all the cars electronics are bugging like it not getting any power. The positive cable doesnt look good but i tried cleaning it and the car still wont light up correctly(dash electronics). Things ive done: 1. Swapped battery
2. Swapped ecu
3. Checked fuel pump
4.Checked fuses

The main fuse off the positive cable is still intact but the postive cable connector is not pretty. Would this cause the fuel pump not to get power and then mess power for everything else? When i put a multimeter on the battery connected the voltage is all over the place. The stock positive cable is $364 from ecs and i just want to make sure before i spend that kind of money on the oem cable. TIA!

-Ron

I'm not sure what the problem is with your car but I bought a used battery cable from ebay for I think $45 and it's in perfect shape.

[ShogunR32]

I'm not sure what the problem is with your car but I bought a used battery cable from ebay for I think $45 and it's in perfect shape.

I will be checking ebay later. Its strange that it did not appear electrical at first(looked like a dead fuel pump) and then everything is bugging out like its not getting power.

[customa4]

Here's one for $20. Seller is in New York so you should be able to get it pretty quickly too. Click It says "B7" but I can verify that's the exact cable I just swapped on mine.

[ShogunR32]

just bought it, thanks for the heads up!

[imnuts]

What do the ground cables look like?

[SJorge3442]

What do the ground cables look like?

[imnuts]

I was going more for what do they look like on his car, are they corroded, loose, etc. or do they look ok?

[ShogunR32]

I was going more for what do they look like on his car, are they corroded, loose, etc. or do they look ok?

Ground looks very clean. Also secure.

[tHatOne guY]

Very common issue with these cars it seems. When my cable died it was very hot to the touch and had a voltage drop of 1.0 to 1.8 volts. I picked up a used cable from Wolf auto on Ebay and it too died, that was my second cable.

I am going to build one and post it up for guys to do their own, since at some point Ebay will run out of second hand parts and 300$+ is a crazy amount of money for something that I think will fail again eventually.

Anyone know if there is a build thread or DIY of how to put one of these cables together? I searched didn't see one.

[SJorge3442]

I was going more for what do they look like on his car, are they corroded, loose, etc. or do they look ok?

Haha, my bad. I was gonna say, its pretty easy to google search that.

Sent from my Nexus 6 using Tapatalk

[ShogunR32]

At least the car ran fine in the snowstorm.https://vid.me/23rE

[ShogunR32]

Replacing the positive cable did not help. Car still appears to be not getting power. When i turned the key everything flickered for a second and when i checked the battery the voltage dropped to 7 around volts. Any idea what else i should do before admitting defeat and taking it to a garage?

[tHatOne guY]

Replacing the positive cable did not help. Car still appears to be not getting power. When i turned the key everything flickered for a second and when i checked the battery the voltage dropped to 7 around volts. Any idea what else i should do before admitting defeat and taking it to a garage?

What was the voltage at the battery posts with the engine off? Was it 7V?

Sounds like a discharged battery.

[ShogunR32]

What was the voltage at the battery posts with the engine off? Was it 7V?

Sounds like a discharged battery.

If i unhook the ground the battery voltage climbs back to 12.5volts. If i connect the battery the voltage drops like something is draining it. It did the same thing with another battery i had in the garage.

[tHatOne guY]

If i unhook the ground the battery voltage climbs back to 12.5volts. If i connect the battery the voltage drops like something is draining it. It did the same thing with another battery i had in the garage.

I see. Probably best to start looking for any obvious loads, map reading lights on, glove box light, vanity mirror lights, relays under the hood and dash, etc.

That doesn't pan out then start pulling fuses one by one to isolate the circuit causing the drain.

[truea4b6]

I'm a not pro but it happened same with my caddi srx, simply just replace the battery ! Hope this could help !

[ShogunR32]

I'm a not pro but it happened same with my caddi srx, simply just replace the battery ! Hope this could help !

You are right. Both of my batteries were bad. Got a new one today and all the electrical appears fine. I still can not start the car because I am not getting fuel. But at least it has power.

[customa4]

I guess that's one step in the right direction.

[ShogunR32]

Primed the car and i thought i heard fuel pump turn on. I went and pulled the fuel filter out and there was fuel in there. It was very hard to blow through the filter so i ordered a new one. Can a clogged fuel filter really be my issue? Only has about 45k miles on it.

[ShogunR32]

Also, my cars return line has slight kink to it due to a mechanic's error on lifiting the car up on a jack. Im wondering what the effects of this kinked return fuel line would have on the FPR on the rail( I am using return setup with B5 fuel rail).

[Let it snow]

In the beginning of the the thread you said you pulled the fuel pump and tested it. Does this mean not submerged in any fuel? Perhaps the pump turned on because it had no load (fuel) to pressurize. Also it is not good to run them dry if this is the case. Anyways with the rear seat cushion pulled you should easily hear the pump prime with key turned. Confirm the pump is running and go from there.

[ShogunR32]

In the beginning of the the thread you said you pulled the fuel pump and tested it. Does this mean not submerged in any fuel? Perhaps the pump turned on because it had no load (fuel) to pressurize. Also it is not good to run them dry if this is the case. Anyways with the rear seat cushion pulled you should easily hear the pump prime with key turned. Confirm the pump is running and go from there.

Yeah I pulled the pump and tested it very quickly not submerged and it turned on. I then put it back in and primed it (I think I heard it turn on). To check if it pressurized I pulled the fuel filter and there was gas in there. I then tried blowing through the filter and it was very difficult to do so. No grime or anything like that, just difficult to blow through. I am currently waiting on a new fuel filter to be delivered to put that in and see if it has anything to do with blocking the rail from getting pressure( I am return style now with a B5 rail, no valve on the rail to check pressure).

[ShogunR32]

My car's head is most likely toast. 11 years and 205k miles. I think it might be time for a change, Maybe an avant Having a huge part out for anyone who is interested.http://www.audizine.com/forum/showth...4-USP-part-out