Problems starting up
#1
Problems starting up
Alright guys and gals,
i have a problem with my 2007 r56 MCS (N14). Every morning, without fail, my mini has problems starting up. By problems, I mean; when I start the ignition, it starts up, and then 1 second later it sputters and "stalls" and just shuts off. Sometimes it only takes 2 times, sometimes it takes 3 or 4 before the engine actually stays on. Once it stays on it operates as normal throughout the rest of the day. Minus when I first pull out of my driveway, when it kind of sputters to get going, then is fine. I ONLY ever have this problem after the car has been sitting for 7+ hours. I've changed the fuel filter, spark plugs, battery is fine, and alternator is fine. The only other things I think it could be are the HPFP or the injectors. Possibly carbon buildup? I'm hoping one of you gurus on here could give some insight! Thanks in advance!
Tyler
i have a problem with my 2007 r56 MCS (N14). Every morning, without fail, my mini has problems starting up. By problems, I mean; when I start the ignition, it starts up, and then 1 second later it sputters and "stalls" and just shuts off. Sometimes it only takes 2 times, sometimes it takes 3 or 4 before the engine actually stays on. Once it stays on it operates as normal throughout the rest of the day. Minus when I first pull out of my driveway, when it kind of sputters to get going, then is fine. I ONLY ever have this problem after the car has been sitting for 7+ hours. I've changed the fuel filter, spark plugs, battery is fine, and alternator is fine. The only other things I think it could be are the HPFP or the injectors. Possibly carbon buildup? I'm hoping one of you gurus on here could give some insight! Thanks in advance!
Tyler
#4
#5
I have similar problems (which I posted in another thread). Apart from the standard OBD tools, shouldn't the rail pressure be readable somewhere in INPA or Tool32?
I've gone through the functions in Tool32 for MED172, but the only think I can find is a function to turn the low pressure pump on and off. There must be a function which reads the rail pressures somewhere if standard OBD2 readers can get the info...
I've gone through the functions in Tool32 for MED172, but the only think I can find is a function to turn the low pressure pump on and off. There must be a function which reads the rail pressures somewhere if standard OBD2 readers can get the info...
#6
I have similar problems (which I posted in another thread). Apart from the standard OBD tools, shouldn't the rail pressure be readable somewhere in INPA or Tool32?
I've gone through the functions in Tool32 for MED172, but the only think I can find is a function to turn the low pressure pump on and off. There must be a function which reads the rail pressures somewhere if standard OBD2 readers can get the info...
I've gone through the functions in Tool32 for MED172, but the only think I can find is a function to turn the low pressure pump on and off. There must be a function which reads the rail pressures somewhere if standard OBD2 readers can get the info...
Tyler
#7
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#8
#9
only codes I have read are misfire codes, but I only have a basic OBDII reader. Maybe there are "hidden" codes I'm not able to read?
#10
Yes, I had the misfires at that time as well. Go have MINI read it if at all possible. I think I eventually got the 2880 high pressure fuel pump error. Unfortunately my memory is waking up and I believe it was the HPFP.
#11
Oh no!!! Yeah I think I'm gonna be taking it into my Mini specialized mechanic within the week. I'll update as soon as he diagnoses it. Thanks!
#12
Mine was covered under a recall. If yours was never replaced you might get them to do it as a recall item. Don't recall if there was a time limit, but still worth trying to push for.
#13
#14
Mine was acting up weeks perhaps a few months before giving the actual HPFP error code. The dealer rep said that was critical to get it replaced under the warranty. If it turns out to be the pump, check with the dealer service department. If they will cover it and the code needs to be present drive it until it appears. It will eventually.
#15
Mine was acting up weeks perhaps a few months before giving the actual HPFP error code. The dealer rep said that was critical to get it replaced under the warranty. If it turns out to be the pump, check with the dealer service department. If they will cover it and the code needs to be present drive it until it appears. It will eventually.
#16
If it's the pump it will. Unfortunately modern car repair relies on codes. I guess if the code isn't there MINI won't be able to go to the part supplier and complain about a defective part.
#18
#19
#20
Rail pressure is the pressure on the common rail between the injectors and the HPFP That is about 200 bars? but may vary based on engine load. There is also pressure between the low pressure pump in the tank and the HPFP, which is about 5 bars. The problem with diagnosing the HPFP is that if you cut the fuel supply at the low pressure pump level, it will obviously cause a drop in the high pressure. The DME only monitors the high pressure so you will get an HPFP error even if the problem is before.