E30 stomp test how-to

Postby **M20_fever** » Tue Nov 01, 2011 2:58 am

BMW E30 Motronic Fault Codes

Procedure for acquiring error codes from Bosch Motronic DME - aka "Stomp Test"

BMW e30 s, which are 1988 and newer, have Bosch Motronic versions M1.1, M1.3 and M1.7 and can display fault diagnostic codes. Procedure for obtaining codes is:

For safety reasons, put the transmission in neutral, and turn the ignition key to "On" position but do not start the car
In quick succession fully depress and release accelerator pedal 5 (five) times
After couple of seconds Check Engine light will blink once, and start to flash code(s)
All codes are composed of 4 digits (see table below). For example, code 1211 is represented as Blink, pause, Blink Blink, pause, Blink, pause, Blink
When code(s) start to repeat, all of them have been displayed

code definitions here: http://e30world.com/fuel/BMW-E30-DME-Mo ... ault-codes

Postby **Nsquared97** » Tue Nov 01, 2011 3:20 am

Awesome Tony, thanks!

Postby **Yoshi** » Tue Nov 01, 2011 12:28 pm

someone should do a youtube video on it. It's hard to explain in words the rate at which you have to pump the pedal.

Postby **M20_fever** » Tue Nov 01, 2011 1:02 pm

About half the speed you jerk off. That wasn't hard at all.

feel free to add a video though.

Postby **Yoshi** » Tue Nov 01, 2011 2:54 pm

That would require a stock E30 for me to do it on. Guess I could grab the apprentice's

Postby **M20_fever** » Tue Nov 01, 2011 3:10 pm

I'd do it, but I already put the e30 in storage for the winter and its a half hour away...

Postby **ponycarman** » Wed Nov 02, 2011 3:48 am

I just did the stomp test today on my e34. Worked like a charm. Check engine light came on and I used it to help diagnose yet another problem lol.

Postby **M20_fever** » Wed Nov 02, 2011 12:46 pm

it is a very helpful feature.

Postby **ponycarman** » Wed Nov 02, 2011 12:59 pm

It sure is!

Sent from my LS670 using Tapatalk

AGriego · Postby **AGriego** » Wed Nov 02, 2011 5:30 pm

Threw no codes. Phew!

Rick · Postby **Rick** » Wed Dec 28, 2011 8:12 pm

I havent been able to get the stomp test to work as of late... I wonder if the Miller MAF has anything to do with it.

Postby **M20_fever** » Wed Dec 28, 2011 8:18 pm

The tps triggers the stomp test, check that its functioning properly. Maf should have nothing to do with it. If anything I would think the maf would throw a code the stomp test would store.