So this just started happening today. I start the car, idle jumps to ~2k rpms like normal and then dies. First thought was it was the MAF, unplugged it and the car will start up and bounce really low in the RPM's but doesn't die. I checked the intercooler pipes and sensors, everything looks to be fine. I was doing some research on the forum before posting and I will check the IAC tomorrow. I feel like I must have accidentally unplugged a sensor and forgot (seems like that's always the issue.) If you have any other suggestions please let me know.

03 evo, PT61 turbo, buschur 3 inch exhaust, safc tuned, walbro 255

 

**I forgot to mention that I had a couple intercooler pipes off and I cleaned my air filter with a K&N recharge kit. I thought maybe the filter cleaner would screw up the MAF? Maybe? I don't know. As said before, I have checked several times all the intercooler pipes and they are fine. Vacuum lines are also OK.

 

Hmm, well I'm gonna try MAF cleaner later, keeping my fingers crossed.

 

double check those pipes you took off, make sure all your connections are air tight

 

Ok so I was able to get the car started no problem this morning, after about a mile of driving it started to stall our at every stop. I just pulled codes and got 3.. P0102, p0113, p0141. Cleared them and stated the car, seems ok but I will update again after my drive home. Also the car drives perfect, it just dies when I stop if I don't hold in the throttle a bit.

 

Same thing on the way home. I just checked the resistance on the IAC and it was around 31 ohms. Anything?

 

Did you disconnect the battery at any point?

You might have an idle learn problem.

Did you do a proper boost leak test to check all couplers??

 

I did disconnect the battery last night but it didn't seem to help. I didn't keep the power off for long though, maybe 15 seconds. I didn't do a 'proper' leak test, but I will on my next day off if things keep going the way they have been. Thanks!

 

After the battery is disconnected, try and let the car idle for ten minutes.
Upon driving, it will take some time for the ISC/IAC to learn where to be.

A Boost leak tester can be made from instructions on the site.
Home depot is your friend.

Good Luck

 

Sounds like a plan, thanks again!!

 

sounds like a vac leak

 

Ok so driving in, I noticed tat my car won't actually die, it dips really low in rpms then bounces up to around 900. It does this a couple times and then stabilizes at the normal idle which is 850ish