Car has been stalling, now a new idle issue, any clues..??

[BeastMode335i]

Ok so for the past month I have noticed intermittent long cranks when i go to start my car, and it doesn't do it every single time so I figured it was probably just a cold start issue that I'd deal with until it got bad.. Well a few days ago I stopped to grab lunch and after I was done (approx 30 minutes) I went back to my car, started up fine, put it in reverse, and about halfway backed out of the parking space the engine just turned off.. All the lights and everything else stayed on, so I turned it all the way off, and it started back up and drove fine.. Well two days later I'm driving around all day just fine with no issues, then I go to meet up with my girl and as I'm parked and waiting with the a/c on, not even 5 minutes later the engine turned off, lights and all stayed on again.. I let it sit for a few minutes and was just thinking to myself what could be causing this, so I came on here, no dice.. She came out, it started up fine, and drove fine the remaining 5 hours of my work day..


Welllllll, this morning I go out to go to the gym, start my car and it immediately starts having an erratic idle, half engine light, and i tried to give it a little gas and it seemed unresponsive..


This is exactly what it was doing
https://www.youtube.com/watch?v=k-_8...ature=youtu.be


So upon searching the forums someone mentioned to do a throttle reset, which I did and now it seems to be fine again..????? Some people on the forum said battery, others said throttle body, others have even claimed to check the charge pipe.. Well I did look at my charge pipe and MAF sensor on the CP and they're both still seated just fine so I know those haven't come off, but I'm thinking this isn't really related to that (could be wrong) but just figured I'd see if anyone else has had any issues like this, and found a fix for it since the previous individuals never posted back if they fixed it or not..


I'm assuming the stalling issue and the new idling issue this morning are related, because they've never happened before the other day.. Also, my car has been experiencing an occasional long crank lately as well, which I read was fuel related most likely.. It's not every single time, but it has been happening and I see how that could be related to making my car stall, but the whole idle thing this morning doesn't make sense on how that could be fuel related..


I did pull the codes from when it was doing that crap this morning and they all seem to relate to "throttle" issues but again I haven't ever experienced this so just looking for some insight..


Thanks..

[BostonBeemah]

Jeez never catch a break do you! Do you happen to have an upgraded tmap? And I know your running MHD but do you have a JB4 as well?

[BeastMode335i]

Jeez never catch a break do you! Do you happen to have an upgraded tmap? And I know your running MHD but do you have a JB4 as well?

I know right brother! For the past few months it's been running fine, than bam..

And no JB4, just MHD.. And the only things i've added are DP's, DCI, CP w/ BOV, MHD, and Alpina Flash.. Been like that for months now with no issues.. Than the intermittent long cranks came about I'd say a month or two ago.. The stalling has just started this week and has done it twice.. And the crazy idle situation with all these codes just started this morning.. I did the throttle adaptation reset and it runs fine now, but obviously there's a bigger issue at hand that's causing this to happen I just don't even know where to start.. It sucks because it makes me nervous to even drive anywhere more than a few miles :/

[jt0407]

You check the crank sensor?

[BeastMode335i]

Naa not yet, but I'm going to today.. that's the one under the starter right?

[DavidV]

Normally long crancs are an indication to the HPFP going south. If you keep your car long enough eventually it will happen to you...
Keep driving it with a progressively failing pump and the car will throw all sorts of fuel related codes.

[jt0407]

Naa not yet, but I'm going to today.. that's the one under the starter right?

Yes. Very tight spot to get to.