Mitsubishi wants me to leave it there, since they are the ones who originally started all the repairs and whatnot. Which kind of makes sense, because that way there isnt a trail of like 3 or 4 dealers/repair shops who've tried different things to repair the car. Plus, at least I know if **** does get ****ed up, it was only at ONE place, so that one place will be held accountable for any mishaps. Also, it's literally the only Mitsubishi dealership in my area. I'm way down in South Jersey. Next closest dealer is over an hour away, awesome...

 

Trust me, you're fine. The K&N filter was in no way shape or form found to be the cause of the problem. As long as it isn't way over oiled, and I mean like soaked, you will be fine.

 

OP: to summarize, mitsu recall reflash performed, code P1235 (MASS Airflow Sensor Plausibility)
Mitsu manual says:
- Faulty Throttle Body
- Faulty Mass Air Flow (MAS) Sensor
- Mass Air Flow (MAS) Sensor harness is open or shorted
- Mass Air Flow (MAS) Sensor circuit poor electrical connection

and now they think it is the turbo. I re-read the list. Nope. Didn't see turbo on it. [face palm]

epic.

 

They are deviating way far away from the book now. But from what I understand, in reading other forums and similar posts about this whole thing, is that a P1235 code by itself (not associated with any other MAF sensor codes) means that it is an overboost issue, regardless of what any Mitsu manual or handbook says. If the P1235 was associated with any other code like low-voltage reading, high-voltage reading, etc, then it would be likely that the MAF was infact bad or malfunctioning. But yeah, apparently the car could be creating too much or not enough boost for the cars threshold to read happy numbers. And there are a variety of things that may or may not cause that (ie. Vaccum/Boost leaks, Turbo malfunctioning, Wastegate and/or linkage malfunctioning). I think they are just going to start throwing parts at the car now though and hope something sticks and fixes it... Sigh.

 

wow. Just 'wow'.

 

i have my recall letter but not doing it. one of my friends took his in and soon as they saw he had catback and mods they started coming up with things that need to be done also and telling him his warranty was voided and crap like that. not for me..

 

I called the dealership yesterday and the lady told me that even with the new turbocharger assembly the car is STILL THROWING THE SAME CODE, WTF. I seriously am running out of things to say about this whole situation now... Unreal. They are trying some new **** on Monday, including seeing how the car reacts to a new boost pill line, with the old pill, new pill, and no pill. Also running a leak test on the boost charge pressure and physically checking all hose and line connections. (yeah, I have no idea...) After that, there isn't much else to try besides replacing the MAP and Throttle Position sensor, and then replacing the ECM with a brand new one. If it gets to that point and the car still does the same ****, I would guess that Mitsubishi might be owing me some money or a replacement car. It has already been over 20 cumulative days in the dealership with at least 3 repair attempts made. Unbelievable... I'll be contacting Mitsubishi early this week.

 

Hey, at least by the time they replace every part in your car with a new one, you will basically have a new car... Though seriously, they have done all this bs, but they still haven't touched the ECU and put the original map on it?

 

Still haven't touched the ECU... At this point, I'm kind of hoping they get to the ECU soon, and just replace it. But It seems like they are waiting for that as a last step kind of deal. I wish they would put an older map on it and see if it still does it, but so far they wont, but only because Mitsubishi is telling the dealership not to. When I talk to some one from MMNA this week, I'll be sure to drill that into their head. "TRY AN OLDER VERSION FOR F... SAKE".

 

did they actually try replacing the maf sensor?
seem the most logical thing they should replace first.

also, are the technicians at that dealer named larry, curly, and moe by any chance?

 

It was one of the first things they did actually.

From my March 7th update: As of right now, the car has had the air box repaired, the stock air filter put back in it, a new MAF sensor installed, the throttle body was cleaned, a new turbo charger assembly put on it, and has had a vacuum leak test done (apparently). Even with all of that, the car is still throwing P1235. What's pending now is a boost charge pressure diagnostic and a new boost pill line with tests done on it with the old pill installed, new pill installed, and no pill installed, to see how the car reacts to that. After that, its replacing the MAP sensor, after that its probably a TP sensor, and AFTER ALL THAT, it should be replacing and/or re-mapping the ECU.

If the car still does the same thing beyond the ECU replace/repair, I would literally have not one clue or idea as to what the next step would be, and Mitsubishi might not either, who knows at this point. But if Mitsubishi doesn't, they had better start working up some sort of compensation for all this ridiculousness...

 

Oh and about the techs being named Larry, Curly and Moe... At this point I can't even really blame them because they are actually on the phone everyday with the "techs" from MMNA, who are telling the dealer techs what to do. So honestly, it seems like its the techs from corporate who are the idiots, and not really so much the ones at the dealership. In my last email to MMNA, I told them they were really starting to get to the point where I have no patience left and that something needs to happen fairly quickly. I suggested that get their asses in gear and send a tech and/or engineer from Mitsubishi to come physically look at my damn car, instead of working on it over the phone. And so far with all this, MMNA nor the Mitsubishi dealership, has offered a rental car or anything to even semi-please me, so It's about to the point where getting a lawyer is starting to look like a good idea, just in case.

 

Huh!

I do hope for your sake they figure it out... You do have my sympathy.

I bet 10 gadgillion BitCoins that the 'new ECU' fixes it

 

Yeah, I just wish they would get to the ECU already and see if that helps. I don't care what it is that might be wrong, I just want them to figure it out already and fix it. I just want my damn car back.

 

UPDATE:

Alright, I got a call from the dealership today and the lady says the car is fixed. "fixed". God dammit I hope so. Apparently when they installed the new lines, including the boost pill line, it took care of the problem. Maybe I had a leaky hose, or a damaged boost pill, I have no ****ing clue and I'm not even sure they do/did either. But according to them, they installed the line late Friday and have been road testing the car since then, and the code hasn't re-appeared and they say everything seems fine now. I'll probably be picking the car up tomorrow in the afternoon. I'll take it for a long ride, give it some pulls and WOT and see how everything is. I hope to god the problem is gone, but I'm kinda scared/skeptical at the same time. But I will be sure to keep everyone here updated still and I'll be sure to let you all know how it goes.

So after a modified/repaired airbox, new air filter, new MAF sensor, cleaned throttle body, new turbocharger assembly installed, new lines and boost pill installed, various diagnostics/tests done... Problem finally solved??? --.__(o,o)__.-- Maybe....

Wish me luck boys!