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Join Date: Jun 2015
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83' 944 wont start with new relay

Hi ya'll,
I recently picked up a 1983 944 and im loving it! The only things im not loving so much are the electrical issues.

Originally I thought the car just had a bad relay as it would turn but not fire. I went and bought a brand new relay but that didnt seem to fix the problem; the car turns but does not start.
The fuel pump has also been replaced with an OEM Bosch pump and new OEM spark plugs. I also have pressure in my fuel rail if that helps. My speedometer does not work and neither does my fuel gauge.

I went to Clark's garage and followed his repair procedures;
1. Checked the position and speed ref sensors - they appear to be working
2. Tested the relay - its working

I tried to short pin 87, 87b, 30 and the car started up. I drove it around and it seems to have no other major issues.

To recap, my car works when i manually short out pin 87,87b,30 but does not start when I put in a brand new relay.

anyone have any ideas?


Last edited by mohsun; 06-01-2015 at 08:18 PM..
Old 06-01-2015, 05:21 PM
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Looks like i accidentally posted this in the turbo forum. Can an admin move my thread over to the NA thread. Thanks.
Old 06-02-2015, 07:33 AM
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Sounds like the ignition switch malfunctioned. Easy to replace and cheap.
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1989 944 Turbo
2004 Jeep Wrangler Unlimited - Built!
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Old 06-02-2015, 10:13 AM
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Quote:
Originally Posted by grendiers View Post
Sounds like the ignition switch malfunctioned. Easy to replace and cheap.
But my car works when i turn over the key. are you saying the wiring from the ignition switch to the fuse box is bad? How would i go about fixing it?
Old 06-02-2015, 10:20 AM
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It's not unusual to get a bad relay. I suggest buying a couple more (one for now and a backup). Buy them from PP because they're the latest version.
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3 944's, 2 Boxsters and one Caman S, and now one 951 turbo. Really miss the Cayman.

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Old 06-02-2015, 10:37 AM
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Quote:
Originally Posted by grendiers View Post
Sounds like the ignition switch malfunctioned. Easy to replace and cheap.
Quite unlikely, considering the OP description of the symptom. Either a bad DME relay or a bad DME ECU.
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Old 06-02-2015, 12:15 PM
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Quote:
Originally Posted by grendiers View Post
Sounds like the ignition switch malfunctioned. Easy to replace and cheap.
Quote:
Originally Posted by 944 Ecology View Post
Quite unlikely, considering the OP description of the symptom. Either a bad DME relay or a bad DME ECU.
if thats the case, then my new relay must be defective? Is there anything else that can cause this problem?

Old 06-02-2015, 02:30 PM
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