New clutch, New immobilizer, still no start, ideas?

[blue62]

Originally Posted by 99boxster986

Update: I've found a very helpful video on YouTube about diagnosing the no start and whittling down the possible causes. I've eliminated the clutch safety switch (bypassed it with a jumper wire) and tried the jumping the starter relay through pins 87 and 30. Now the car will crank no problem while the pins are jumped. I tested the relay but connecting the battery to it with some lead wires and I heard a click, but subsequent testing with a volt meter showed no continuity. So I have ordered a new starter relay and that should hopefully be my problem. But the question remains, why won't it run? I did see my gas was pretty much on empty. So I will add some more gas in the tank. Hopefully with this, the car will start. Will update as I find things out. Ideas and feedback greatly appreciated.

Again make sure ALL relays and fuses are good first.
If you don't know how to properly test a fuse or relay go to youtube.
Once you know for certain that all relays and fuses are good and you can get it to turn over with the key. If it will still not fire up then it is either not getting fuel or not getting spark.

[99boxster986]

Corrosion on the wiring harness to the immobilizer is a possibility, are there any cleaners or methods that you recommend for getting that cleaned out? And I hear you about checking all the fuses and relays. As for the starter relay that just came in today. Weirdest thing. I installed it, and it doesn't even want to turn over. But when I jump the pins for the relay, turns over but doesn't start. Shouldn't it turn over with my new relay since it works when it's jumped? I'm so confused on that part....

[Bush Pilot]

It’s clear at this point that the signal that drives the relay isnt getting there. There’s a signal that “throws the switch” (relay) and it’s not getting there.

[99boxster986]

Update: I've solved the problem! Actually 78F350 called it. Corrosion on the wiring harness to the immobilizer has been causing my no start. I used some electrical contact cleaner and it started up, I drove it to get some gas and after filling up, gave me some trouble turning back over but I suspect I just need to clean it a bit more. Took it for a good 20 mile drive to see how the new clutch feels and it feels great. Got some weird smells though, like clutch smells, so I'm going to need to double check with my mechanic to see if that's normal. I knew it was something simple. I just over looked the harness for whatever reason. I'm ecstatic I have this boxster back on the road and can now move on to the other pieces it needs like to replace the convertible top, new brakes, and cosmetic enhancements. Thanks for the help guys!