crappy start

[KA24JEF]

so im hoping that this is a dumb prob and an ez fix, so when i go to start my car not allways but soe times it will start jump to 1500 rpm, drop down allmost till it dies and then back up to right under 2000 will stay for about 30sec then slowly go down to normal???? and nothing bad happen when its driving drives fine and strong, and to put another strange thing in the mix when i remote start the car nomatter how many times its done this prob at a givin time it wont do it when its remote started???? so has anyone had this type of problem or has this prob now??/

[Ace2cool]

When you're manually starting it, do you turn the key and let the fuel pump prime or do you just crank it immediately?

Maybe post a vid of it happening?

[KA24JEF]

No I just go straight for the start , and wold love to post a vid of it but I don't even know how to post pics on hear let alone a vid lol , do u think it could be something with the fuel pump?? Thanks for the reply

[NolimitZ32]

try letting the fuel pump prime

turn key to ON wait about 5-10 sec then start. see if it does it.

[KA24JEF]

im really hopeing if that fixes it that the dosent mean a new fuel pump .... i can deal with like a new fuel filter lol

[KA24JEF]

ok so did that waited a few and work fine after al that it still idels a littel high i think but it didnt go way up and even better it didnt try to die at all

[Ace2cool]

A high idle when first starting just means your IACV is functioning properly. However, if it doesn't settle in after a few minutes of running, it may be stuck open.

[KA24JEF]

it does settel and ill be honest im not sure what the iacv is?? lol

[NolimitZ32]

Idle Air Control Valve, its toward the DS on the back on the intake manifold. An IACV AAC regulates your idle, there is another valve back there, the Regulator Valve (known by many different names) which sits closer to the center of the manifold next to the IACV is actually whats responsible for cold start idle, it is designed to mechanically allow more air into the manifold during cold starts to raise RPM and warm the car up faster (arent emissions regulations just absolutely great)

IACV AAC


IACV Regulator (responsible for cold start idle)