85T not starting - very sad day - Saab 900 Bulletin Board - Saabnet.com
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85T not starting - very sad day
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Posted by JJ (more from JJ) on Wed, 24 Nov 2004 15:37:32 Share Post by Email
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My 85T was running awesome on the way to school. I got out of class and it just won't start.

I've been trying to use the Bentley to get it running.

I've checked the spark and it's good.

I'm getting NO fuel injector pulse when I crank the engine. Also, I'm getting no power at the positive wire going to the injector.

Also, I opened the nut at the fuel rail to test for fuel. I'm getting no fuel when I crank the engine, however the pump works because fuel is expelled when I bypass the relay (jump fuse 27 & 30).

Thinking that the ECU controls the injectors, I swapped in a spare ECU - still won't start.

Now I suspect the system relay because it's supposed to control the ECU and the fuel pump relay. I tried wiggling them - no start. Also, I tried putting the fuel pump relay in the slot for the system relay and then ran the pump from the fuse box - still no start.

I got a new fuel pump relay and a new system relay but I haven't put them in yet. Hopefully they will fix the problem. If not, what should I try next???????????????????

Thanks a lot for your help. I'm about of ideas.
Chris

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