AFU L.H? - Saab 900 Bulletin Board - Saabnet.com
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AFU L.H?
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Posted by Jason Russell (more from Jason Russell) on Sun, 14 Jan 2001 14:41:11 Share Post by Email
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I've got some serious problems here. My '88 900S won't start after the new engine swap. I have a Bentley manual that I have thoroughly studied. My problem is electrical, the injectors and fuel pump won't come on. I have read that if the LH doesn't recieve an ignition input pulse signal, then it won't fire up any of those components. I have also gone through all the electrical checks and the only one that doesn't check out is at pin 1 and 17 at the LH, I should receive 2-3 Volts A/C. I traced it all back and that wire goes into the EZK at pin 17. That wire also comes up to the back side of the tach. So anyways, I figure this is my ignition pulse signal that my hall effect is supposed to be sending. But, instead of the volts AC that I should get, I'm getting just slightly less(11.5vdc) than battery voltage that drops off when cranking(8.5vdc). I disconnected the tach thinking that maybe it was grounding the circuit, but no diference. I also disconnected the hall-effect at the dist., still no effect. I disconnected the EZK and it quit. I have a spare EZK that I put on and it did the same. Am I suppose to get this voltage? I'm stumped with this car and I need to get it running. Any help would be appreciated. I have more detailed info if neccesary. Thanks

JAson

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