Performance Chip - BMW Forum

huyatgr · 10-20-2011, 03:39 AM

I replaced the performance chip on my 1994 325i E36. All seemed to go well, until putting the DME back into place. That's when I touched to DME housing to the positive battery lead and threw a spark! I know, always disconnect the battery. I will never ever forget again. But now what? A salvaged DME is $250. Is that my best option, or may there be a more simple fix (resetting computer, checking fuses, surge protector inside the DME)?

Jack Dabsy · 10-20-2011, 02:54 PM

Cheapest options first mate... Do the reset (Battery) first...
If no-go then maybe open-up the DME and check for "Tracking" or failing joints...
By "arc"-ing the unit, you might have killed a transistor or two inside the unit... Maybe not, we don't know yet !

beewee · 10-20-2011, 03:12 PM

can i also put a chip on my 318i? 1996 m43.
will it do any good if I dont change the intake?

Jack Dabsy · 10-20-2011, 03:15 PM

Yes you can chip it or re-map it... My advice is to do all of your mods (if you want any) and then get a chip/re-map (re-map is best)...
You can get some beneficial MPG from a re-map while even gaining some "horses" !! Expensive though...