3.1 struggling a bit
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3.1 struggling a bit
minor problem with my new 3.1, everytime i slow to a stop the rpms drop from normal idle to like 400 and 500 and jump up and down from there to 1000. any ideas what might cause this, usually doesnt do it when in neutral and every now and then the rpms drop to low and it dies. little help?
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Car: '86 Camaro SC, '16 QX60
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Well don't quote me, but I did read in another post that the drop in rpm is a symptom of a bad fuel pressure regulator. Do a search. I believe that the jump in rpm is just the computer trying to recover the engine idle speed.
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Re: 3.1 struggling a bit
Originally posted by Pillsbry10
minor problem with my new 3.1, everytime i slow to a stop the rpms drop from normal idle to like 400 and 500 and jump up and down from there to 1000. any ideas what might cause this, usually doesnt do it when in neutral and every now and then the rpms drop to low and it dies. little help?
minor problem with my new 3.1, everytime i slow to a stop the rpms drop from normal idle to like 400 and 500 and jump up and down from there to 1000. any ideas what might cause this, usually doesnt do it when in neutral and every now and then the rpms drop to low and it dies. little help?
Here is a link to the procedure:
https://www.thirdgen.org/techbb2/sho...idle+AND+learn
RBob.
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Car: '86 Camaro SC, '16 QX60
Engine: 2.8 V6 POWER, 3.5L V6 N/A
Transmission: T-5, CVT
Originally posted by RBob
I would do an idle learn procedure on it. With the new engine I take it that the battery was disconnected? The 3.1's w/auto's need to learn how to idle whenever the ECM loses battery power.
I would do an idle learn procedure on it. With the new engine I take it that the battery was disconnected? The 3.1's w/auto's need to learn how to idle whenever the ECM loses battery power.
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