Re: high boost fuel pump cut-off switch is not in a 90 - Saab 900 Bulletin Board - Saabnet.com
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Re: high boost fuel pump cut-off switch is not in a 90
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Posted by JohnK (more from JohnK) on Mon, 28 Jul 2003 08:03:09 Share Post by Email
In Reply to: high boost fuel pump cut-off switch, MS, Mon, 28 Jul 2003 00:50:24
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mlg's cut off switch on a 90 runs off the AMM and is triggered by air flow.

re the no start. It's either spark or fuel. If spark is present and tach bounces a little during crank, then the problem is fule delivery. check that the fuel pump runs by jumping fuses 27 to 30 with the ignition off. Pump should run. If so, then check the fuel pump relay, main relay, injectors and ECU with a digital multimeter as described in Bentley or on the townsendimports.com website.

If no spark, I would not discount the ignition module or hall sensor.

posted by 216.75.9...

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