Hi evryone,
last week i threw a p0128. still throwing that code along with a new one. the new one is p112b whitch i belive has to do with air to fule ratio. Any ideas out there... i have a ddm works ris and a riss racing catless downpipe. my mian concern is the p112b because i ran fine untill then, now i peak at 5 lbs in lower gears.

 

http://www.obd-codes.com/p0128

I'm not sure what the other one is. I would reset the CEL and see what happens after another round of driving.

 

I did reset it and the p112b comes right back as a pending code. I tried this multiple times.

 

clean your MAF sensor with the proper cleaning fluid.

 

I dud that and cleaned my filter yesterday and still get the cell

 

Do you have boost tubes or an intercooler? You should check all of your hose attachments. Maybe a hose came off, also maybe your downpipe came loose

 

don't have either but it wont hurt to check.

 

Downpipe shouldn't be loose but I will check that too thanks for the input

 

I threw p112b before the downpipe over the winter but it only did that below 20 and stopped once winter ended.

 

its your thermostat, it needs to be either programed or replaced. there is a bulliten about it, take your car to your dealer and they can help

 

I did a week ago and they said it was caused by the downpipe. They gave told me the You sensor had some kind of heat signal. Ill call tomarrow and plea my case. As for the p112b I put the stock air box on and is running fine again
Think it has somthung to do with the angle of that maf sensor

 

p112b came back on my way from work tonight. Now I have no idea?

 

What the heck is the "you sensor"? There are tons of people with the DDMRIS that have no issues. I wouldn't expect a MAF code.

 

It's not that hard to install the downpipe. So just put your stock one back on and if the cell is still there take it to another dealer or back to the same. Also if the cel does go away you will know it is the DP.

 

The only cell that worries me is the p112b car runs normal with the other two
I have experienced this cell before the downpipe was on. It happen when cold out and has to do with the atf ratio but stopped once it warmed up to above freezing. Now its back? Could OK be the maf sensor?

 

The only true way to solve your problem without troubleshooting is to do what Chakraj said and put your stock down pipe back on. If you get any codes after putting your stock down pipe back on then take it to the dealer and have him figure it out.

 

I've figure this out!!!! The P112B comes up air fuel ratio... there was a bulletin put out by mini. This actually has something to do with the thermostat. Just take it to your local dealer they have to do a re-flash.

Just had mine done today by the new Mini Monmouth!!!