Idle Issue

[SpoolN]

My car has the most random Idle. When its warmer out the car will idle between 1100 rpms-1500rpms. If its colder out it will idle at like 550 rpms. Also when im driving The car is an automatic. When i come to redlights the car will idle very low around 400 rpms and I have to hold the brake and give it gas to keep it from stalling out. Is this my tps sensor? Idle sensor?? any ideas

 

[GSX93DSM]

Sounds like a vacume leak to me. Do a boost leak test and try to find the leak. It might be aicv, trottlebody leak, tps sensor. Try the leak and go from there.

 

[talnteddriver29]

Have you tried adjusting your BISS? Check over the basics. Fouled Sparkplugs, Ignition Problems, Leaks, Cracked Hoses, loose Throttle Cable. It could be the ISC Motor. If you need to check it, do it while its in effect.(HOT)