You are here: Forums Coupes & Convertibles Porsche 911 Porsche 944 and 924

Porsche 944 and 924

86 messages,  Last post on Nov 05, 2009 at 5:35 PM

You are in the Porsche 911 Forum. Your Host is claires

What is this discussion about? Porsche 944, Coupe, Convertible

Messages Page 10 of 10 1 ... 4 5 6 7 8 9 10 Prev Next Last

Go To Msg # Search This Discussion

#84 of 86 944 electrics by 944project Nov 04, 2009 (2:18 pm)
People heres one for you. Got a 85 944 lux 2.5 auto the fuel pump relay has been by passed hence its running all the time, headlamps have been dim for 15 years and the previous owner has run the live from one to feed the other, that has been cut out, the h lamp switch when pressed on activated the h lamp motor, the live for the pump has been breached into the live from the washer jet motor. What electrics worked, side lamps, indicaters, reverse lamps and stop and tails electric windows dash lamps,rear fog lamps have never worked. the washers have been wired onto a switch on the centre console and all relays work (no AC not fitted) Yes the car is a project but a do-able one new auto box wheel bearings, torque converter and lots more.   The problem, have changed the fuse boards wire for wire and checked the relays all ok a bit of a burn out on number five block at the first pin on the bottom and centre of the block, rewired soldered and lengthened, feeds going to all the main lives and voltage checked all pushing 13.5 plus volts, took clocks out and the rear mister wire has been breached to feed the fuel pump live??? i know, i now have clock, interior lamps no window motor and the main beam comes on when the left stalk is pulled towards the driver, no pop up lamps when h lamp switch pressed and still no rear foggs, all earth checked. I need to know the colour of the wires to the fuse board in order to chase the problem but unable to get the relevent colour codes andiagrams, haynes manual crap, Any ideas Porsche enthuasists. Replies to this message: todd82ta (Nov 05, 2009 6:15 am)
#85 of 86 Re: 944 electrics [944project] by todd82ta Nov 05, 2009 (6:15 am)
Replying to: 944project (Nov 04, 2009 2:18 pm) Hey 944project, my reply won't really be much help in terms of solving your problem, but it's a better idea of how to tackle these problems. Rather than focusing on the big issue, a better way to look at it is to try to fix each "system" seperately. For example, if your windows don't work, then focus on fixing JUST that, first.   Unfortunately, you're probably going to have to tear out most of the interior to expose a lot of the wiring. I would even recommend maybe removing the dash so that you can have easy access. The dash is NOT hard to remove. It's only attached by 4 or 6 philips head screws if I remember correctly. You should have easy access to all of the wiring.   You can actually TEST all the wiring (at the doors) where they connect to the harness inside the car by hooking up the leads to a 9 volt battery. A fresh 9 volt battery will provide enough power for you to be able to test the up and down motion (if this works, then you know that you won't need to open up the doors). You can also use a car battery with leads attached of course too.   Anyway, once you've tested the wires at the door, you can then follow the harness all the way back behind the dash and to the fuse panel. I'm willing to bet that more than likely the problem is relays. The relays in the Porsche 924 / 944 are notorious for failing, plus the fact that the car is already 25 years old...   Porsche rather over-engineered this car, and by doing so made it less reliable than it could have been. Almost everything is on a relay, and if you have an 85 vs an 85.5 then you have the old fuse block too... (if you have the old style interior, then you've got the old wiring harness).   Anyway, I hope that helps some. Try to focus on one system at a time... you're going to have to take apart your interior (it's not hard, I gutted mine and then put it all back) in order to properly trace the wires.   Good luck...
#86 of 86 Missing by hawaii9 Nov 05, 2009 (5:35 pm)
I have an 86 944, with a bunch of electrical problems. First the windows quit. That was some time ago. Recently I lost the wipers, both front and rear. The fogs have gone, the air blowers,and the ect. mirrors. I first cleaned 6 of the 7 grounds, checked all the fuses, and then all the relays for continuity,and cleaned the lugs, every thing checks out fine. I did find a squat item in with the relays called "spare links" Could this be the problem? can't figure out hoe to check it. Can anyone help with this? I have no idea what to do next. Help!!!   Thanks   Paul

Messages Page 10 of 10 1 ... 4 5 6 7 8 9 10 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Coupes & Convertibles Porsche 911 Porsche 944 and 924