Back-fire

madfronter · 08-15-2006, 03:41 PM

So today is a week since I had the Dinan stage 2 software upgrade done. I went to drive to work this morning an my car is running like ****, it is back firing in every gear and not accelerating properly. Do you think this is caused by the software upgrade going bad? I called the BMW dealer that did the instalation and they said I can drop it off today and they will try to fit it into their schedule. I'm a little upset about the situation.

DustenT · 08-15-2006, 03:47 PM

Quote:

Originally Posted by madfronter

So today is a week since I had the Dinan stage 2 software upgrade done. I went to drive to work this morning an my car is running like ****, it is back firing in every gear and not accelerating properly. Do you think this is caused by the software upgrade going bad? I called the BMW dealer that did the instalation and they said I can drop it off today and they will try to fit it into their schedule. I'm a little upset about the situation.

Check for a vacuum leak between the MAF and the throttle body. Are you running 93 octane gas? I believe you need to run high octane gas with the Dinan chip.

**weezer** · 08-15-2006, 04:10 PM

That happened to me (backfiring) when I cleaned the sensor and installed it backwards. There's an arrow on the MAF sensor to show where the flow should go......Good Luck

madfronter · 08-16-2006, 12:20 AM

Thanks for the helpful comments DustinT and weezer! The problem ended up being a few loose spark plug wires. Everything is all good for now.

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