1st Gen R50 Cooper Most liked posts in thread: Urgent help needed!

Fresh from the doctors!

Dear Mr Wilson,

I would like to inform that we already checked the injectors, and we found there is one of the injectors that behaves little out of the range, however we think is not the roots cause of the symptom. Now we are testing the computer signals to see if the failure change from the oscilloscope.

Honestly I think it is a difficult diagnosis case, so the diagnosis process may take more time.

Please let me know if you want that we continues with the diagnosis process or pickup your vehicle.

OMG I need to sell a kidney! keep going chaps!

 

No disrespect to the dealer but I don't think they have clue for anything other than text book stuff. I'm requesting what they did so far. So I can load a tune from my lap top...mmmmm interesting.

 

I have a Bosch 02 sensor on the Mini since 2013 . I read they make the 02 sensor for BMW so I figured I should be good. For sure I would not be buying some Chinese junk for the Mini. Regarding the other parts I've always bought used low mileage parts with thinking a 40,000 mile part has to be better than a 130,000 mile. As this is going to be a process of eliminate the original parts quote from Emini was $1500 which was an awesome price but a little over my budget. This visit I have a another Bosch 02 sensor, re-manufactured OEM injectors, a used cam sensor, OEM spark plugs and a bucket of luck!

I have a ODB2 port cable to hook up to my lap top. I have installed the software and need to test it next week.

I did some reading of my build thread and noticed I had a miss fire issue at idle which cleared its self once I drove the Mini. Maybe some real time driving might clear the issue? I've got 3 weeks...hahaha

 

Those odd ball parts have served me well since 2013 Actually the only non OEM part is O2 sensor. The only odd ball thing was the fuel

 

either I work on the Mini or drink a bottle of wine in my spare time. lol

 

Got a chance to read the data at lunch, the ignition timing is up and down at idle. from -10.5 to 15.6 then at 4000rpm a constant 34.5 until I drop the rpm , the timing goes to 3 and both 02 sensors voltage goes to 0
RPM Timing 02V short term 02V

4090 34.5 0.145 5.46875 0.61
4090 34.5 0.095 5.46875 0.6
4067 3 0 0 0
3063 29.5 0.765 -10.9375 0.635
3578 11.5 0.84 -17.96875 0.65

I thinking timing chain tension?

 

no such luck...it was raining cats and monkeys last night. An open engine with monsoon rain don't mix.

 

There was some excitement last night, enough to brave the rain. I finished putting all the parts back, turned the engine without the plugs to check I had oil pressure. All looked good so I fitted the plugs and started the engine with the lap top hooked up. The ignition timing is still erratic but the fuel trim was down to -7.66% which was an improvement. So I went for the 4000rpm, all was well until dropping down to 3500rpm and staying there for a few seconds, then the fault happened again.

Next! I'm going to run without the cat, then pull off the intake and check the crank sensor. When I got the ECU tune I sent ECU, key, alarm etc to Way and he added the tune. This will be the last thing I can do when I leave in another week.