Hi all,

I’ve had the p1225 code popping up. I didn’t drive my mini for a while and after starting up today with codes cleared, p1225 popped up before the engine even got warm and while idling. I sprayed both the wiring harness and the connector on the throttle body with electronics cleaner and now there’s no code while running at idle to operating temp with a few 4K revs. Is this just a temporary fix? I feel like I should just get another throttle body and possibly wiring harness. This code really sucks and it’s embarrassing as hell to just go limp mode in the middle of traffic.

 

It happens, we all grow older, as do our cars...
Would also clean the pedal position connector, and maybe pull the throttle body out to clean it (use throttle body cleaner, not electronics cleaner) and replace the gasket. Failing that get a new VDO, pricey but worth it; you won't be stranded. Sketchy knockoffs from Amazon and evilbay should be avoided.
https://www.rockauto.com/en/partsear...um=13541503358
https://www.fcpeuro.com/products/min...-s-13541503358
https://www.fcpeuro.com/products/min...al-13547509045

 

thanks for the reply!I noticed the continental and Mini brand throttle body say VDO. I take it they manufacture for others like Lemforder does suspension for mini? Where’s the pedal position connector?

 

Believe VDO is the OEM manufacturer for MINI/BMW. Looks like Continental just bought VDO:
https://www.continental-aftermarket....es-continental
Upper right side of the accelerator pedal module (which in theory also could be the source / part of the problem):
https://www.realoem.com/bmw/enUS/sho...diagId=35_0268

https://www.fcpeuro.com/products/min...ox-35426786280

 

In addition to checking the connections and the cleanings mentioned above, I would try resetting the throttle adaptation using the two procedures given here: https://www.precisionecu.com/blogs/e...i-step-by-step

For procedure 2, keep holding the pedal from step 2 until the middle of of step 4.

 

Yep, that made sense. Let go of pedal after key is turned to OFF. I read in a Pelican Parts walkthrough that resetting adaptions can only be done with a scanner. Have you ever used one for this by the way? Modmini links to the Foxwell NT501. I have the Schwaben bmw/mini/rolls Royce scanner and can’t find the adaptation resetting anywhere. Would appreciate knowing what to look for but also curious to hear your input about resetting the way you suggest. I wonder why Pelican said it can only be done by scanner.

https://www.ecstuning.com/b-schwaben...020sch01a~scf/

 

Okay cool. I’ll look into removing that part of the pedal. So it looks like the rockauto and fcp euro are the same throttle body. It’s so much cheaper on rock auto, maybe because Continental is offering it at a cheaper price? I hope it’s the same…

 

The adaptation from Pelican is probably different. The one I posted is supposed to correct an issue with the throttle pedal getting out of sync with the throttle body and possibly causing drive-ability issues or error codes. One thing that can cause the sync issue is using an old school habit of revving the engine by actuating the throttle body from the engine compartment instead of stepping on the gas pedal. From what I’ve read, drive by wire systems don’t seem to like this.

I also have the Schwaben scanner but haven’t really used it on my MINI yet. It also might not be possible on a 1st gen as I know the functions are a lot more limited on the 1st gens compared to the 2nd gen and newer. Somewhere there was a chart showing what functions worked with each gen but I can’t find it now. Maybe ECS can post more info or a link.

On another note, I’ve been using my Schwaben lately as a generic OBD II scanner to reset some codes and check for smog readiness. I don’t remember seeing it in the past, but when I plug in the scanner to the OBD II connector, the scanner powers up with a screen full of snow/confetti, then would clear and load the home screen. Does yours start with the corrupted screen too, or does it cleanly load the home screen?

 

Oh that’s right I was talking about the throttle adaptions. What option do I have then to clear throttle adaptations once I install a new throttle body? Drive to a place that can do it? I suppose the person who tuned my car could take care of it. Didn’t think about that.

my screen loads up cleanly: is yours still under warranty?

 

It often seems that way, until you factor in the shipping which adds up quick especially if you want it expedited or the parts are coming from multiple warehouses. Returns aren't fun either.

 

I know you have to reset adaptions for the throttle body, and someone above mentioned the way to reset the pedal, but does soldering a new wiring harness requires resetting throttle adaptions as well?

I pulled a throttle body at a junk yard and they wanted 60 bucks. I decided not to buy bc I don’t know its condition, mileage, etc. Just gonna go ahead and buy new.

 

I ended up spraying the throttle body male/female plug components as well as the pedal, and did the pedal reset suggested above. So far so good but I am going to swap the TB for a new one and reset the throttle adaptions with my tuner.