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Stock Problems/IssuesDiscussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Clubman (R55), Cooper and Cooper S(R56), and Cabrio (R57).
Greetings! I've been trying to resolve an issue with my 08 Mini Cooper S. For the first 2 minuets every morning, and again before I return home from work, I have to goose/rev the throttle to keep the engine running. Most time its almost like the gas pedal is not connected to the motor. There's a bit of popping from the tailpipe. Then I'm able to maintain the RPMs at 2500-3000 for another minute or so. This is the routine. After the ritual, I can generally drive with out issue for the rest of the day besides occasionally it may sputter or stumble a bit in city traffic. No issues at all on the highway. There is one trouble code P0697 PCM/ECU relay High Voltage. 2 mechanics have diagnosed the Mini as having a bad ECU, The control module voltage is displaying 25.777 volts (impossible) and I'm going to eventually replace the ECU. They also diagnosed issues with the VANOS, and they replaced it. That did clear a code related to the timing mechanism.
I did stumble upon a modification the previous owner did. They removed the "sound generator" and plugged the end of the coupling.
Has anyone ever done this modification? Did it cause any drive ability issues? Any advice would be greatly appreciated.
Greetings! I've been trying to resolve an issue with my 08 Mini Cooper S. For the first 2 minuets every morning, and again before I return home from work, I have to goose/rev the throttle to keep the engine running. Most time its almost like the gas pedal is not connected to the motor. There's a bit of popping from the tailpipe. Then I'm able to maintain the RPMs at 2500-3000 for another minute or so. This is the routine. After the ritual, I can generally drive with out issue for the rest of the day besides occasionally it may sputter or stumble a bit in city traffic. No issues at all on the highway. There is one trouble code P0697 PCM/ECU relay High Voltage. 2 mechanics have diagnosed the Mini as having a bad ECU, The control module voltage is displaying 25.777 volts (impossible) and I'm going to eventually replace the ECU. They also diagnosed issues with the VANOS, and they replaced it. That did clear a code related to the timing mechanism.
I did stumble upon a modification the previous owner did. They removed the "sound generator" and plugged the end of the coupling.
Has anyone ever done this modification? Did it cause any drive ability issues? Any advice would be greatly appreciated.
I have read about plugging it, I deleted it and installed a forge noise maker delete. Car runs like a champ. You might actually have a leak from the plug.
Before my HPFP died, I had to do the same way you did until I finally replaced it....if you have a mini/bmw obd reader, check the fuel pressure live data upon startup.
Before my HPFP died, I had to do the same way you did until I finally replaced it....if you have a mini/bmw obd reader, check the fuel pressure live data upon startup.
Thanks for the info. I checked the OBDII information and set it to logging. The fuel pressure is monitored at 710psi to 763psi. This morning my logs show a spuratic throttle position % reading. At idle it shows 48% at times. I might OHM out the accelerator pedal to see what I get.
From your CEL it doesn't seem like that sound delete plug is leaking. If it does leak, you'll also be getting quite a few CEL's relating to MAP sensor plausibility errors.
Though I still couldn't figure out what may be, definitely not a vacuum leak nor HPFP from what I collected here. You might want to go and check compression and verify timing. I've got a pretty similar customer with your symptoms, but not with the CEL's that you have, it was due to timing jumped a whole tooth. After I reset that timing with new chain, tensioner, and rail cassettes, it then ran perfect.
Thanks for the info. With everything being in such quite tolerance, would it even run being a tooth off? I attached my log from this morning, and the numbers look to be off. when standing still there are times the Throttle Position spikes some times to 48%. How much Timing Advance is normal? I read that 35 degrees would be typical. Also I know the Control Module Voltage is also a mystery at 25.774 volts. The ECU is miscalculating the voltage, so it is a digital misrepresentation.
