My name is Jason i am new to this form and had my 2007 bmw 550i for almost a year now.i aM a diesel mechanic for over 10 years i have too say bmw is there own planet lol.well i always had something wrong with this car but it would always started up till one day in Walmart parking lot it wont start and i been working on it ever since that 3 months now. It will crank but no start only scanner I have is a Zurich Bluetooth obd2 it’s a zrbt1 from harbor freight. Well I did have codes for Vvt bank 1 so i check my Vvt motors well fast forward I found a use Vvt computer at the junk yard for a 2007 750i i put that in.i put the new sensor in for the cam under the valve cover now I just change the two cam sensor on top the valve cover they r out of that 750i at the junk yard sry dont have that kind of money too buy new ones. Well I have no codes now on the engine.but still no start too me it sound like it’s out of time in a way like the old car if it was too much advance or not enough is sound like the engine isn’t turning over smoothly enough. I am limited what I can do but running out of ideas.one more thing I did put the dme from the 750 in too but the engine sound the same on turning over before I change the computer can any one help me I am just a old shade tree mechanic on gas engine know enough too get me by or in trouble thx u if u can help

 

Welcome. Why'd you change the DME? Did you clone the old one to the new one? Was CAS and DME synced? A lot of questions as you should have the codes guide you to a answer of why you're still having issues

 

No I didn’t clone it I look up on the net that my first problem lol and it said I didn’t have too.really there wasn’t nothing wrong with my I just got the bee and the Vvt computer for $50 and figured since the net said it would work on both of them I just install it.i am guessing I need too put my old one back in? Now my Vvt I believe it was bad can I leave that in or does that need too be programmed too?

 

to the forums. @Jslyder You need to be careful what you read on the 'net because nothing has been qualified. Also, it appears that your code reader is not BMW-specific.

 

Yes u r right on both trust me if I had the money I would buy the best of the best but I don’t and times r hard right now and both of my cars r down so I would take any advice that will help me get this running so I can get back too work so I am going too put in my old dme unless that a bad idea too ? I could use good advice and get this up and going pls

 

It seems like you have already realized that BMWs are complex machines. That is why a BMW code reader is quite the essential tool.

I am not sure what BMW readers you saw, but I've seen some as low as $49. The one I use cost $79. Or, if you have a spare laptop lying around that has enough resources, you can install diagnostic software for FREE.