Technical 500L Acceleration Issue

[DocMidnite]

So my 500L started having trouble accelerating recently when going up a hill (the rpm meter would go way up when I pushed on the gas but the car barely went any faster) and the check engine light came on the second or third time this happened. Whenever that happened I'd pull off to the side of the road and restart the car and it would be fine. I looked up common causes for acceleration issues and saw that having a dirty air filter was one of them and mine was very dirty, so I changed the filter myself and the check engine light went off, it seemed fine driving around town so I went on a planned 4 hour drive to visit a friend for the weekend. The problem with accelerating happened once on the drive there but went away after I pulled off to the side and restarted the car and there were no other issues. On the drive back my car felt a bit more sluggish than usual but otherwise nothing else happened, the original issue didn't repeat. Then today the check engine light came back on. I got an OBD sensor and its giving me codes P2262 and U0077. The app I use to interface with the OBD describes the first P2262 code as "Turbocharger boost pressure not detected" and the U0077 as "DTC cannot be verified."

The earliest I can get it into a dealership is a week from now. In the meantime does anybody here have any insight into what the problem might be, how much that could cost and if its safe to drive in the meantime?

Thank you!

 

[varesecrazy]

Hi

To me RPM going up.. but car not accelerating

Must be related to the drivetrain
( the friction clutch slipping would be #1 supect.. but only if its a manual.. Auto can be little more complex)

Tell us more

 

[DocMidnite]

Hi

To me RPM going up.. but car not accelerating

Must be related to the drivetrain
( the friction clutch slipping would be #1 supect.. but only if its a manual.. Auto can be little more complex)

Tell us more

It is an automatic.

Originally the problem with the rpm always happened going up the same hill near my house and that doesn't seem to trigger it anymore. So the only issues presenting right now are that it seems a bit slower to accelerate than normal which is why I checked with the OBD scanner to make sure nothing was still wrong and once I plugged the scanner in the check engine light came back on.

The check engine light actually turned off again when I went out to get groceries just now (I'm going to avoid driving until the dealership appointment but needed to stock up on things for the week) but then I plugged the OBD scanner in again when I got home and the check engine light came back on again. The OBD scanner I got was really cheap from Amazon ($13) so maybe I just got a bad one

 

[varesecrazy]

Basic OBD teaders are Engine : motor only

No transmission..ABS brakes..Power Steering.Airbag System

Odd how it appears to bring the light back on though