wtf car wont idle till warm

[roderick]

Ok so I pulled my engine out the first time added some parts and what not. I installed the engine and it ran fine from the start. It would start and idle nice but now I had to pull my engine a 2nd time. It still has the same tune on it but it wont idle till its warm. If its cold it bounces from 10afr to 17 afr it wont sit and idle nice. I am just checking in to see if you guys think its the tune or a sensor that might be jacked up.

p.s im not on E85 any more.

[slitterell]

Still 80 lb inj?

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[roderick]

Originally Posted by slitterell

Still 80 lb inj?

Sent from my SPH-L710 using AutoGuide.Com Free App

yep still 80s everything is the same it just does not want to idle now.

[skatinboarding]

Boost leak? You still running that turbo kit? Sorry I havent been around for a while.

[roderick]

Originally Posted by skatinboarding

Boost leak? You still running that turbo kit? Sorry I havent been around for a while.

yep still running the turbo setup no boost leak. My boost gauge reads the same it always has. I did install Supertech 75lb Valve Spring Kit, I dont think that would have anything to do with cold idle though.

[skatinboarding]

I guess im not sure but I wouldnt think valve springs would cause this issue. Did it run good last winter? Maybe your maf sensor took a crap? Is your maf in the charge pipe or the intake?

Edit- Is it only on cold start idles? So the car runs fine when at op temp?

[roderick]

Originally Posted by skatinboarding

I guess im not sure but I wouldnt think valve springs would cause this issue. Did it run good last winter? Maybe your maf sensor took a crap? Is your maf in the charge pipe or the intake?

Edit- Is it only on cold start idles? So the car runs fine when at op temp?

I didnt start the car last winter I only drove it till September. The Maf is in my charge pipe not my intake. It only does it on a cold start but after 10 min of running I can shut the car off and turn it back on or just leave it and it will idle like a angel. But once I leave the car off for a hour and it gets hold then it wont idle again till its warm, It has to be above the quarter mark on the temp before it will idle by itself.

[roderick]

Morning bump

[REDLINE1313]

Almost sounds like a bad O2 sensor not telling the comp to run rich on cold start. That or your tune isn't letting it or telling it to bump up. I'm no expert though just my 2c. Are ya throwing codes?

[slipknot2157]

strange.. mine does the exact opposite.. idles perfect when cold, soon as it gets warm it doesn't want to idle and sometimes dies