 '94 940 Non-turbo Ruff Start, no spark to #3 for first minute |
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| '94 940 Non-turbo Ruff Start, no spark to #3 for first minute |
 Jul 10 2008, 10:30 AM
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#1
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Newbie Group: Members Posts: 5 Joined: 10-July 08 Member No.: 45,353 Status:  Location: usa Drives: 1994 940 non-tubo 1993 850 nonturbo  |
Thanks for any help.....this car has the REX/Regina system .....Started missing (only for the first 1-2 minutes...car runs great after that)and car was due for new plugs, wires and dist cap and rotor..so, I didn't think twice about putting in the new stuff...to my amazement, the car still misses ...only #3 does not get a spark and if i move my timing light to the coil wire, I can see the miss there....I've also been able to look at the rpm sensor but I'm not sure how it should look....I'm seeing a lot of intermittent spikes riding on what appears to be an ok signal ....the spikes are still there after #3 starts firing.....!!???? I feel like I'm starting to bark up the wrong tree.
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Jul 21 2008, 09:02 PM
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#2
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Newbie Group: Members Posts: 5 Joined: 10-July 08 Member No.: 45,353 Status: Location: usa Drives: 1994 940 non-tubo 1993 850 nonturbo |
It was suggested that I put a new RPM sensor ...so I did, did NOT fix it ..oh, and by the way, there are no codes set.
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Jul 22 2008, 09:31 AM
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#3
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 Expert  Group: Members Posts: 605 Joined: 25-August 06 Member No.: 19,150 Status: Location: Yateley, UK Drives: 1989 740 SE AUTO, 1993 940GLE Turbo 2.0i |
does it have a cam position sensor at all?
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Aug 1 2008, 07:46 AM
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#4
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Newbie Group: Members Posts: 5 Joined: 10-July 08 Member No.: 45,353 Status: Location: usa Drives: 1994 940 non-tubo 1993 850 nonturbo |
It only has the mag pickup (RPM sensor) on the bell housing
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Aug 2 2008, 07:45 AM
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#5
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Expert Group: Members Posts: 605 Joined: 25-August 06 Member No.: 19,150 Status: Location: Yateley, UK Drives: 1989 740 SE AUTO, 1993 940GLE Turbo 2.0i |
it could be this, mayb e a loose wire or duff sensor.
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