dies at idol when put in park

02svt

New Member
Aug 3, 2019
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Jasper, al
first off im new to the forum.and thanks in advance for all help. 2002 mustang gt BBK cai BBk 75 mm throttle body, cams, 75 lb injectors, 300 stall converter, 4.10 gears, cat delete, h pipe, shift kit, and sct tuner. with that being said this is my first car I have to tune I have a 93 street tune in it with changes in gear ratio I have idol driving set at 980 at idol at 560. shift pressure up 2 percent. the issue im having I cant get the car to idol at 900 and I just got the idol at stop down but now if I pull up to a store or home put it in park it dies but if I crank it back up runs fine andf idols correct.any info would be a[ppreciated I know nothing mjuch at tuning and could someone help with shift points wot
 
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IF you are attempting to adjust the idle by turning the idle stop set screw on the throttle body, this is part of the problem.

Here's some information that may help. IMO you need to start with the functional test of the IAC valve.

Troubleshoot IAC idle problems 1996-2004