Stalling out when going to neutral
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Old December 29th, 2010, 11:52 AM   #1
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Stalling out when going to neutral


So I recently converted from an AOD to a TR3550. Everythings beautiful, except sometimes (not always) when I shift out to neutral, my idle will bounce below 500 and I'll stall out. The rest of the time it goes to about 750 and sits there solid, no movement and everythings perfect.

What should I check?

Thanks in advance...
-Dennis
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Old December 29th, 2010, 01:36 PM   #2
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Vacuum leak, iac valve
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Old December 29th, 2010, 01:43 PM   #3
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One of my friends had a smilier problem when he put his car in revers it would did. It turned out to be the alternator.
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Old December 29th, 2010, 01:50 PM   #4
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still running the auto ecm?
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Old December 29th, 2010, 04:31 PM   #5
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Yes... Still using the A9P. However, I have a SCT flash with a year+ old program from AM
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Old December 29th, 2010, 05:43 PM   #6
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The EEC4 uses the VSS signal from the trans to keep the rpm's up (keeps the idle around 1000 above 5mph), this helps prevent stalling during deacell along with other things. I'm not sure how the 3550 or T5 vss functions compared to the AOD with a A9P but you may want to look in that direction.
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Old December 30th, 2010, 03:21 PM   #7
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Thanks for the response. I searched on here and on google and found threads of people saying they had to run the wire for the VSS, but no specifics.

Does anyone have the details of what needs to be done?

Thanks...
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