Sketchy idle at times

[Blakonblak94]

So here lately I havent been doing much work on the car due to the heat. But lately Ive been experiencing a pretty good issue with my idle. Once I start the car(cold start) itll idle up and then settle down and do great, but once it gets warm, sometimes it will tend to die at a stoplight or such, and when I shut it off then restart it with it still warm it really acts up. Itll iddle up then itll just shut off. I usually have to drive it a little ways for it to idle again decently. Any ideas to what it could be?

 

[Mustang Mark]

fuel pump going bad perhaps?

 

[Blakonblak94]

Brand new fuel pump. Did it before I replaced as well.

 

[wannaboost94gt]

I am expieriancing a similar problem. :BangHead:

 

[blkmcnasty]

mine does the same but i also just did a H/C/I swap with a new 308 block out of a 91 fox body so im sure my car just needs a tune. Check fuel pressure

 

[Blakonblak94]

Ha it seems we all have a similar issue for a similar reason. HCI cars without tunes maybe?

 

[wannaboost94gt]

Mine has a tuned chip but its a mail order tune. :dontknow: Going to change the air/fuel filter this weekend see if it helps?

 

[Blakonblak94]

I was running a QH for a while now I have a nice PROm Maf and it seems to idle much better actually