Re: Spark not fuel and its NOT the pump - Saab 900 Bulletin Board - Saabnet.com
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Re: Spark not fuel and its NOT the pump
Posted by Simon S (more from Simon S) on Thu, 21 Jan 2010 17:39:34
In Reply to: Re: Spark not fuel and its NOT the pump, Pete [Profile/Gallery]
, Thu, 21 Jan 2010 17:03:06
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Seriously weird. I'd have to look at the book to be sure, but i *think* the injectors are fed hot power, and the ECU grounds them to fire them.
Noid staying on, suggests the injectors are stuck open or a short to ground between the injectors and the ECU, but what you describe sounds more like they are not firing at all.
At any rate, I would think to pull the ECU and see if the wiring to the injectors shows any electrical clues (with all the injectors and the ECU unplugged, there should be no connection to ground, for example)
posted by 24.21.131...
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