RPM problems!!

[kylecm85]

So I installed a new alt and battery about 3 weeks ago. Ever since then when I am slowing down and press the clutch in it drops down to about 500 rpm and acts like it wants to stall. Today I was sitting at a light and it did stall had to restart it and hold my foot on the gas until the light turned green. It has a JLT intake and 93 tune on it. Would anyone lean more towards maf or throttle body.

 

[BadHabit2Break]

Have you cleaned the TB?

 

[kylecm85]

Yea I just wiped it off. Didn't move the actual blades though. Just wipe the back side out when I had it off to replace the alt

 

[BruceH]

It sounds like a vacuum line didn't get connected or got disconnected during the alternator swap.

 

[BlackSunshine]

Reload the tune. Perform the Idle Relearn procedure (start the car, let idle for 10 mins, turn AC on, let idle for 5-10 mins, take it for a drive through varying loads and cruizing speeds) and see if that helps.

 

[19COBRA93]

My car does that anytime I load a tune, or disconnect the battery. For a day or so it'll idle poorly until the PCM figures out things. It's probably not normal, but I've just lived with it. After a day or two of driving it goes away and idles fine.

 

[kylecm85]

I have tried reloading and letting sit for 10 minutes. Didn't turn the ac on though. Took it for a drive and have drive it since them with the same issue. I will try it again tonight though

I checked every hose I could find. I thought it acted like a vacuum leak to.

 

[balls8302]

i had similar issues last summer, cleaned tb and maf and the car ran perfect, cheap easy fix used the crc cleaners, worth a shot

 

[kylecm85]

I will try that. Where can you get those crc cleaners at

I found the cleaners at advance. Will give it a hot later on and let you know the results.
You all think I should still try to reload the tune and relearn the tb?