Alright so I gave my local Porsche dealership a call to see if the key was why my 928 won’t crank and the answer was no... so I tested the starter and it worked perfectly. I tested my battery and it worked perfectly. So I think there is a bad ground or bad wiring between the ignition barrel and the starter or power isn’t getting to the starter... any ideas anyone?

 

There is no chip in a 928 key. from the factory there where long and short keys. The long key is for cars with factory alarm installed and arms/disarms the alarm when the doors are locked using the long key. the short key is for cars without the factory alarm, or valet key, which does not arm the alarm. In either case the short key will unlck and start the car (if the alarm is not armed), so if you haven't locked the car using a long key, you should be fine with the key you have.

 

Welcome to Rennlist! I think.

Interesting first post. I have a problem, call or text me with the solution. I'm too busy/lazy/important/preoccupied/distracted to come back and actually read the answer.

-- Get a key
-- Test the battery for voltage. If none, charge or replace the battery
-- test the starter circuit 50 for voltage with key in ignition switch and the start position. If none, find out why. If yes, find out why it doesn't crank.

 

This thread ...

Oh wait, we're a long way from that. Do the parking lights work?

 

what a great idea..
let me post a picture of the key that starts my car.

No one will get a copy made from my picture and see if it really works.

NOTE to self delete any pictures of keys for your vehicles ,
most keys can be made from posted pictures,
this is a perfect example of a good key picture.

 

i think someone was having some fun..

 

I called my nearest dealership and found that one out ha. The starter works I tested that and all the electronics turn on when I turn the key but it doesn’t seem to wanna crank. Maybe a wiring issue between the barrel and the starter?

 

go pay 100$ at your nearest dealership with your proof of ownership of a car that you aren’t sure exists and have no clue where it’s sitting or what the vin is. It is a high security key that locksmiths usually aren’t equipped to be able to make and if they can it costs quite a bit. If you can copy that key find my car and find the title I’ll let you have it lmao

 

Hi bob! I went to a locksmith and asked some questions they said to call the dealer and the dealership said that 928s don’t have any type of immobilizer or chips in the key so the key isn’t the issue I tested the starter and it works like a dream. So I think it’s a wiring problem between the ignition barrel and the starter?

 

Yep.

 

Good to see you took down the pic of the key, but you could have left the basics of the post up.
The car may or may not have an alarm. It was optional, but it's a very common option.

However, while the alarm will prevent the car from starting, it won't keep it from cranking.

First two things that come to mind if it won't crank from the key, but the starter spins when you put power to the S terminal are ignition switch and starter relay.

Relays are wear items in this car. Most of us carry a spare or two as a matter of routine.
The ignition switch will wear out over time.

The simplest check would be to get down to the CE panel (under the passenger seat floor at the front). Have someone turn the key. If several relays can be heard to click when the key goes to start, the switch is likely good. Part of what it does is shut off power to some circuits when it cranks. You should hear those relays click off when it goes to start.
Also, if your horn works, simply swap the horn & starter relays. See if the horn still works, see if the car cranks.

There are more detailed things, involving the 14 pin connector, but the above should give you some ideas where you need to go.

There are other options. Keys For Classics will make a key from a pic. Not all that much (cheaper than the stealership).

 

OT:

Just got two new keys from Keys4Classics

One with the lit porsche key head too

great price and arrived in less than a week!!

 

92s,
First, welcome to Rennlist.
Second, you need to identify the model year of your 928. I don't think it is a "92s". By the looks, I'd guess between an 81 and 84.
Either way, the horn and starter relay will be in the same location so it won't matter for this test. See attached for an '82.

Follow Wisconsin Joe's advice:
First, honk your horn. Why do this? Because you want to use a known good relay (horn) to replace the starter relay, which may be bad. And the horn relay and starter relay are the same replacement relay.
If it honks you know you can borrow the horn relay for this test.
If you turn the key and lights come on and other relays "click", then it may be the starter relay (at relay XIV).
So, take the horn relay "X" (which you confirmed is good) and replace the starter relay with it.
Test and report back.
And look for another engine bay brace. It is not supposed to look like that.
-Jason

 

And I have no idea why when I type the words "starter relay" there is a link to Autozone....ignore that.

 

so this is real?

when you turn the key.....nothing at all, right?