F55/F56/F57 Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for F55/F56 MINI Cooper AND Cooper S models.

F60 fuel pump, no start

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Old Mar 19, 2020 | 06:07 AM
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Czptp Px's Avatar
Czptp Px
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F60 fuel pump, no start

I'll try to make this story understandable. I have an f60. With the gracious help of the members of another forum I was able to get the software and a new ACSM from a donor car installed.

1. Prior to getting to the point of coding the ACSM or even getting the old one out, the car had been running well. With start and stop cycles idling to run diagnostics and hopefully help charge the dead battery which I eventually had to change, it had a brief sputtering run then to a no start condition. After I installed the battery the lock on the connector on the MAF sensor was reapplied wrong by me, popped of trying to open it. Not sure if the no start was before or after this. I thought I flooded it, could smell fuel so just let it sit for a while. Tried starting with gas pedal to the floor. A couple of sputtering starts and then none since even connected to another vehicle or a charger (battery shows full in both conditions in addition to the jump)

2. ACSM from another car installed and coded to this vehicle, codes cleared, airbag light gone. Absolutely amazing help from one of the members from the UK!!!

3. Still no start so I thought I fouled the plugs so took them out for a cleaning - a bit of black carbon, propane torch and toothbrush cleaning, looked clean, replaced.

I only have the ista+ error lists after it stopped running. I have several runs after clearing codes, after installing new ACSM and current although ista now only lists a missing LIN for heated seat (can't possibly be the source of the check engine light). This is common to many of the runs and I think answers the problem

DME_BX8 --- 0x11A031 Low pressure fuel system, electric fuel pump: Pressure too low
20965 Unknown
DME_BX8 --- 0x11B030 Electric fuel pump control electronics, signal: Open circuit 20965 No *prior showed open circuit
DME_BX8 --- 0x12B304 Oxygen sensor after catalytic converter, heating, activation: O pen circuit 20965 Unknown
DME_BX8 --- 0x200D04 Drive, safety function: accelerator pedal value bus signal implausible 20965 No
DME_BX8 --- 0xCDA53D Message (status, seat belt buckle contact, seat occupancy, 2 75.6.8) missing, receiver DME, transmitter BDC-ZGM / FEM-Z GM 20965 Yes
DME_BX8 --- 0xCDAD04 No message (control, crash deactivation, fuel pump, 0x135), r eceiver DME, transmitter ACSM 20965 Yes

These were with the old ACSM. Before getting to the pump in the fuel tank, I am looking for some help. These codes are no longer present but if reading correctly
1. I need a new O2 sensor after the cat - open circuit heating element - although not listed on this run, it did show open circuit previously
2. Low pump fuel pressure too low is pump in the tank. I get no fuel if I disconnect the fuel line in the front of the engine and crank it (a bit of a trickle in but barely any)
Is this (open circuit) because of the error listed at the end - crash deactivation fuel pump - it was listed as Yes (present)? Can this be coded out or physically reset (see next information)?

After exchanging ACSM, prior to new coding this is listed making me think I have an open circuit in the fuel pump not the ACSM telling it there is a crash
D355F2 No message (crash control,105.0.1), receiver DSC, transmitter ACSM 20965 No
CDAD04 No message (control, crash deactivation, fuel pump, 0x135), receiver DME, transmitter ACSM 20965 No


I can't seem to get any current codes to come up after attempting to start it to point me in the right direction for any other new errors, but I'm pretty sure the problem is no fuel getting forward, just wanted to be sure replacing the low pressure pump or coding would address the pump
O2 sensor has to be done either way


I have the rest of the report but left it out unless someone wants the whole stack along with pdf of what may have been after it stopped running, multiple additional connections with ista and their reports before and after ACSM install, before and after new coding that got the ACSM .

I also have a stack of pictures of the OBD codes while it was running and after installing a new battery (which I also haven't registered yet).

In the details in ista+ for the O2 sensor and fuel pump errors it looks like the O2 was the first problem, no idea what these times are as they are in seconds only, no date or usual time
43948771 s lambda/O2 open circuit
43953508 s fuel pump open circuit
 
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