CoolBDPhenom03

Maybe an hour after my CEL came back this afternoon, I was making a right turn. The throttle surged and then felt like it went limp. The car wouldn't go...like it was capped at 500 rpm. My alert triangle lit up on my dash and the center dial showed the ESP icon and said the operation was currently unavailable. I pull over and restart the car...gone. WTF? I immediately called my SA and he said it sounds unrelated, but bizarre.

dc5itr888

I've been keeping up with your thread of P0171 and I myself have had the light for about a week.

The weird thing with my situation is it disappeared out of no where

CoolBDPhenom03

Weird. I was told that a small leak would go unnoticed since the sensors compensate. Only when it's really bad does it trigger a CEL or run rough, like in my case. Perhaps the fuel mixture compensated?

SoFlaC63

ESP? maybe a abs sensor took a dump. Wouldn't know until it was scanned.

CoolBDPhenom03

I dunno. I had a weird glitch a few months back where cruise control all of a sudden became unavailable. No codes, just a glitch apparently.

schmick325

I know this sounds crazy, and I have just been through annoying CEL's and strange messages popping up that ultimately led me to sell my car last week as i'd had enough, but the issue in the end was the battery. The terminal was corroding and it wasn't giving all the cars' systems enough power, also making the alternator run overtime.

I had messages from 'SRS system malfunction' (no issues, only saw it once), 'active headlight inoperative' (could clearly see is was working fine)

To its credit the battery was 7 yrs old

Maybe not related to you, but its one thing have checked

CoolBDPhenom03

Mine's only 4 yrs old, but that's a crazy story.

schmick325

Alot of cars you are lucky to get 3 years from a battery.

CoolBDPhenom03

I had a '99 Acura from 2005 to 2012 and I don't think I ever changed the battery. I'll keep that in mind though.

Guilty

I HAD THE SAME THING HAPPENED TO ME THIS MORNING. Happened on the highway, stop and go traffic. Had to stop the car in the middle the road, turn it off and start it again. It was gone.

Could it be the spark plugs? lol

CoolBDPhenom03

Dunno. I just had a B3 service like two weeks ago too.

HoozyerdaddyC63

I ran into a similar issue a couple weeks ago. I was driving on the highway and the car basically shut down. I looked at my dash and saw ESC Currently Unavailable See Operator's Manual.

I was barely able to pull off to the side of the road. I almost got hit by a semi and a pickup and I gotta tell ya it was scary looking in my rear view mirror. If I had known what was happening and how quickly the car was going to stop moving I would have pulled on the shoulder.

Anyway, I took it to the dealer to get it checked out and they said I hit the torque limit. I had them run every test they could and they said the only issues with the car are the o2 codes because the cats are removed. I haven't been able to replicate it either.

Maverick1975

I had this exact thing happen in my SL63. I only replaced the battery in March last year and it wouldn't hold a charge. mB threatened back then that if I did nt buy their battery the warranty would be void on car. Naturally their battery was about twice the market price and failed after 14 months and was on,y warranties for 12 months. Toal joke. Bought a generic battery the other day with a two year warranty for half the price and it fixed everything. We're you driving your ML much? I think not driving car every day ultimately buggers the battery

tfthach13

I've had this happen to me on several occasions, and each time it went away after a restart. My local dealer's SA said it was due to a leak from the manifold gasket. I don't believe him for a second. Bur my car still has a year warranty so I'll argue it when it gets closer to the end.

Anyways, I think it's an electrical problem. Not sure what but each time that it has happened to me, it was precluded with some spirited driving and stopping on an incline. I feel like there is some sensor that is loose. But I have no idea.

farhadahmad

happened to me first few months i got my car. i was scared as ****.

tfthach13

Did it ever happen again? Or did you find out what was causing it?

CoolBDPhenom03

Hmm, I wasn't driving spiritedly, just up and down SF hills to pick up some dinner for the lady. I had parked for a little while on a flat surface beforehand. Granted, the roads down in the Mission suck...maybe something came loose?

khmergod

On a side note...we might become twins, Phenom. In the process of getting drop, Vorst lip and diffuser, have oem cf mirrors, and cf side vents. Except wheels and exhaust.

p.s. poop just got real.

CoolBDPhenom03

Time to reallocate funds for those items then

khmergod

Vivid hooking me up.

CoolBDPhenom03

Outstanding