car died
#41
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Originally Posted by jr's3800
I hate to tell you, but the ECM uses that cam sensor for fuel delievery... Mainly for Sequential Fuel Injection... If there is no pulse from the cam sensor, the car will start the Sequentil fuel delivery in any old pattern... You will have a 1 in 6 chance that the sequential fuel delivery will be correct...
This will be the last from me... Back on topic
This will be the last from me... Back on topic
#42
yeah the crank sensor is the 1 in 6 thing, with it being the car will have a 1 in 6 chance of starting. (usually it will be less tries than that. when mine was going out, i'd almost always get it started on the 2nd if not first try.. but i guess mine wasn't totally bad.. just had some oil on it.)
I guess wha the was saying was that the 1/6 thing you spoke about regarding fuel delivery sounds like you may have been mixed up with teh 1/6 chance of starting a car with a bad CRANK sensor.
I guess wha the was saying was that the 1/6 thing you spoke about regarding fuel delivery sounds like you may have been mixed up with teh 1/6 chance of starting a car with a bad CRANK sensor.
#43
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True Car Nut
Originally Posted by jr's3800
... Note that the car will run if the cam sproket interupter pops out, and or the cam sensor fails.. So if the cam sensor fails or has no signal, the car will still run..
Now, I don't know, maybe the Buick PCM is different or the year makes the difference, or maybe the engine had been replaced (?) but I bought the car, and found the interrupter magnet was gone. (As I recall, this was the old style magnet, attached to the cam gear with a bolt and held in a little casting). When I replaced the magnet, the car started right up and I drove it for 2 years before selling it for $950.
I also have replaced an interrupter magnet in a '91 LeSabre. In that case, the car did start; ran sorta OK, just set the 41 code. That sounds exactly like what you you guys are describing. I think the '91 used the snap in plastic magnet. Maybe a PCM change was made between 88 and 91?
#44
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True Car Nut
Originally Posted by jr's3800
If the battery was diconnected than the ECM'* memory would then be gone and the ECM would have no SFI reference.. Might have had something to do with it...
#45
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I think your '91 will start. The '91 I fixed with the bad magnet would start. To test it, we need to find someone with an 88 or 89 willing to try it.
#47
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Originally Posted by jr's3800
Originally Posted by bill buttermore
I think your '91 will start. The '91 I fixed with the bad magnet would start. To test it, we need to find someone with an 88 or 89 willing to try it.
#48
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Originally Posted by rjolly87
Originally Posted by jr's3800
Originally Posted by bill buttermore
I think your '91 will start. The '91 I fixed with the bad magnet would start. To test it, we need to find someone with an 88 or 89 willing to try it.
#49
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Originally Posted by jr's3800
Originally Posted by bill buttermore
Originally Posted by rjolly87
Originally Posted by jr's3800
Originally Posted by bill buttermore
I think your '91 will start. The '91 I fixed with the bad magnet would start. To test it, we need to find someone with an 88 or 89 willing to try it.
#50
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Originally Posted by jr's3800
GM is strange
Originally Posted by jr's3800
and 91 was a fruity year
But all seriousness aside and trying to stay on topic....I too had a thrown magnet this past summer. The car would start everytime without any problems(thank goodness it was during the summer) and I did notice a slight decrease in performance and gas milage. Padgett'* instructions on how to replace the magnet was very helpful. I don't know why anyone would go 7 years let alone 7 days with this particular problem(thrown cam magnet).