Annoying idle issue

[Prime85]

I have been going crazy over this problem for awhile!!!

When i first start my car its RPMS bounch between 500 and 100 for about 3 minutes and then after 3 minutes the car runs perfectly.

If i put it in drive before the 3 minutes are up it will stall on me.

it runs like a new car after those three minutes, i drove it 300 miles after letting it warm up for three minutes with no problem.

if i turn the car off then back on right away i will have to wait another 3 minutes so it has nothing to do with the engine being warm or not.

I cleaned the TB
New IAC/ISC

I have an Evo 3 intake manifold with TB laying around so i took the TPS off of it and put it on my car. It fixed the Idle problem but my car started to shift horrible. So i figued that was a bad TPS as well so i purchased a new TPS and it went back to the original problem of idleing bad and then running fine after 3 minutes.

So i also have a new TPS.

I have a P1105 code on which is the Fuel Pressue Solenoid malfunction, so i bypassed the FPS to make sure it wasnt that and the problem. Which it still ran the same after.

I am out of ideas and have no idea how to fix it.

Any help will be appreciated because i am about to pull all my hair out. im tired of having to wait 3 minutes everytime i start my car.

 

[TSi96drvr]

Any update about your issue?

I fixed my issue - it seems. I found that my ECU+ software was setup for the incorrect CAS type.

 

[Prime85]

How did you change that?

 

[1995gsx20g]

before you said you have a jdm motor with a 2g TB and 2g IM. i had a problem with a 2g IM on a jdm motor because its a 6bolt. it appears like the IM lines up with the head and seals but it really doesnt. just my .02

 

[Prime85]

My BOV is recirculated.

 

[Prime85]

Stock 2G bov

 

[Prime85]

i have to wait exactly 2 minutes and 37 seconds each time i start before my car will run properly it is very strange