SureTrack Community Fix: MINI Hesitation
Real Fixes from Mitchell 1’s SureTrack® expert information resource are documented issues from actual shop repair orders and community discussions. Read on to see how SureTrack can help you correct issues that are not easily diagnosed using OEM information alone. SureTrack is available at no additional cost in our ProDemand product.
Here’s another case of a vehicle with lack of power and the power of the SureTrack community to come to the rescue. SureTrack community member memohernandez had a MINI Cooper S in the shop hesitated when taking off from a stop and had several codes. They posed their question to the community, and with the help of fellow community member Richard_C and others, they were able to resolve the issue quickly.
The following Community Fix summarizes the interaction between members of the community that led to the solution.
2011 MINI Cooper S 1.6L
Hesitates while taking off, terminal 87 shorted to ground.
Customer complains that vehicle hesitates when taking off from a stop.
Diagnostic Steps Performed/Parts Replaced
Test drove vehicle and found that vehicle runs slightly rough and hesitates when taking off. Check engine light on and found codes 2C3E, 2D0C, 2D10, 3400, 348F and 37DE short to ground. Clear the codes and start the engine and all codes return all at once. No parts have been replaced.
Best Answer from Community Member CBriggs
Looks like terminal 87 (relayed power from 30) is touching the frame somewhere. I’d start by following the O2 sensors wires back toward the ECU. O2 wires are always suspect as they get moved and burn or rub the exhaust and other body parts. You eventually may need to check the wiring of each component that is throwing a code. Most likely, you will find some chafing somewhere.
Found terminal 87 shorted to ground.
Repaired short, cleared codes and performed road test. Vehicle runs as it should and codes did not return.
SureTrack® adds to the power of ProDemand® with an exclusive combination of real-world knowledge and powerful diagnostic tools, all wrapped in an interactive community of professional technicians. Designed to help automotive shops increase accuracy and efficiency from diagnosis to completed repair, the industry’s most comprehensive repair information resource is just a few clicks away.
Want more? Here’s how you can see more Real Fixes in SureTrack: