Diagnostics problem - United Bimmer Community

**chutan** · 10-16-2009, 07:35 PM

Hi fellow bimmerheads,

I have a problem getting my car diagnosed. When they hook up the computer it doesn't produce any codes. Even doing the manual ( driver side ) diagnostics won't work.
It has some rough idling after i step my accelerator too much and i want to know if there's a problem on its sensor.
I have a 92 e36 325i

Thanks,
Luke

BTW this is my first post and its really nice to be in a company of e36ers

**David Mc** · 10-22-2009, 05:41 AM

Check to make sure that your DME is clean and dry, all fuses are good, then read this link http://www.pelicanparts.com/BMW/tech...de_Reading.htm

Big Evil · 10-22-2009, 03:52 PM

How old is your fuel filter? Any gas seepage anywhere? Vacuum leaks don't usually pop codes if they're small, that's also a possibility. Do you have anything to smoke test the system with?

**chutan** · 10-28-2009, 06:28 AM

@ David .... thanks for the link.....i will try again the OBD 1 diagnosis thru the dashboard. Last time my mechanic was not able to list down the codes...not sure if he knew those blinking check engine light were the codes.

@Big Devil ...... fuel filter is about 3 years old. Are you referring emission testing on the smoke test? Had it tested last December and it was within normal limits

Big Evil · 10-28-2009, 10:20 AM

The smoke test I was referring to is when you pump an inert smoke into the vac system of the car to look for leaks. Shops do it with a big fancy machine that basically amount to a party fogger.

If you have flashing lights though you may have a code(s) and we can help more effectively.