R60/R61 Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for R60 AND R61 MINI Cooper and Cooper S MINIs.

R60 Hesitation under acceleration

Old 06-26-2019, 01:59 PM
Mochanic is offline
1st Gear
Thread Starter
Join Date: Jul 2018
Posts: 23
Likes: 0
Received 1 Like on 1 Post
R60 Hesitation under acceleration

There is a significant hesitation/stumbling during acceleration that was not there before replacing the turbo for the dreaded 2C57 CEL (with a worn out waste gate).

It has the stock OEM mapping and has never been messed with. New coil packs and NGK plugs installed in April. There is no check engine light or stored codes. It's almost like it gets to much boost, then the computer opens the waste gate for just a second and repeats this causing a surging feel. Wouldn't this throw a CEL for an over boost condition if that were the case?
I installed the OEM cut off valve onto the new turbo since it was brand new only a few months ago.

Any help or suggestion is highly appreciated!
Old 06-26-2019, 02:32 PM
I_Forge_KC's Avatar
I_Forge_KC is online now
2nd Gear
Join Date: Sep 2018
Posts: 116
Received 23 Likes on 17 Posts
Any chance you have a scanner with graphing/logging to see what's going on?
Old 06-26-2019, 05:40 PM
Mochanic is offline
1st Gear
Thread Starter
Join Date: Jul 2018
Posts: 23
Likes: 0
Received 1 Like on 1 Post
I have bluedriver, but it doesn't seem to be very accurate. Here is a log from it earlier today: http://hughlett.net/Log.xlsx
The boost I know for sure is not over 30psi!

Another thing I notice is that it falls flat on its *** in the upper RPM's, and looking at the timing I can see why.
Related Topics
Thread Starter
Last Post
Stock Problems/Issues
09-14-2018 11:42 AM
R60/R61 Stock Problems/Issues
08-09-2016 04:24 PM
Factory JCW Talk (2009+)
08-22-2011 06:44 AM
Stock Problems/Issues
09-26-2010 04:33 PM
Stock Problems/Issues
02-08-2010 05:55 PM

Thread Tools
Search this Thread
Quick Reply: R60 Hesitation under acceleration

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: