special tool

Do not install injectors resistors with spade connectors.
Solder the connections.
It wll be a very dffcult problem to diagnose WHEN it happens and only someone famliar with the common traits of a particular pair of cylinders on a 944 will be able to to do it.......if he is lucky.

I have never seen a bunch of stupid wiring practices such as I have seen on 944's.

PorscheDoc

Lol, I could tell you some stories, lol.

bunch

I use spade connectors. What kind of problem can I expect?

reno808

For example the car jim is talking about had problems starting, wouldn't idle and it sounded like an STI/it also sounded like it had a big vac leak, some times no start at all, because cycl 1 and 2 were not firing.

special tool

Please share 944 wiring stories performed by logic-challenged for archives sake, certainly not for my simple sense of humor.

Fishey

Factory wiring of the cars is very poor.

reno808

but it had nothing to do with the factory wiring. It had to do with the installer installing the spade connectors. If he would of soder them then car would of been running good and the owner wouldn't have had the troubles he was having. And of course Jims time figuring out what it was.

Tom M'Guinn

The worst of the worst are those vampire taps that slide over uncut wires, cutting through the insulation just enough to make contact with the wire inside. Those should only be sold to schools teaching intermittent electrical problem diagnostics.

special tool

Amen.
Those things are for STEREOS, fellas, not ENGINE MANAGEMENT!.
Good stereo shops won't even use them!

MM951

"The worst of the worst are those vampire taps that slide over uncut wires, cutting through the insulation just enough to make contact with the wire inside. Those should only be sold to schools teaching intermittent electrical problem diagnostics."

yeah my PO installled my MAF/ ARC-2 etc with those.. my car ran like crap until I resoldered everything

Chris White

I hate funky wiring. I will either not touch it or replace the whole thing. As soon as you start in on fixing the obvious problem you will find all the other ‘fixes’. Its not too bad if you do it for yourself but if you are working on a customer’s car the bill can get real big…..
I have seen my fair share of odd piggyback installations.

Keithr726

Maybe this is whats causing my problem immediately after start up. The first couple times I touch and release the gas the RPM dips down real low to the point it almost stalls and then bounces back up.

DrZ1

I used these installing my MAF as I am not good w/ soder and I was worried about cutting in much into my DME wiring. If the car seems to have continuity w/ a voltmeter test. Would this still have relabilty issues or just that they may pop up?

Thanks
Steve

reno808

yes it can because they work them selves loose thats what happen with us. Jim pulled the car into the garage fine. started doing somethings that had nothing to do with the resistors. Then when he to fire it up to test what he has done the car was going crazy. So i hope this answers your question. That you should do is go to radio shack buy a sodering iron and some soder and wire and PRACTICE its easy cheap and the besthing thing you do. Make sure you use shrink wrap to WRAP IT UP. if you need any help pm me or somthing i can help you out.

kevincnc

Before ST chastises you for spelling, there's your problem, you’re supposed to use solder, not soder . Vibration will cause the insulation displacement connectors to start losing connection eventually.