OBD2 Scan and check engine light

[bigdrick323]

Tried to do a obd2 scan but it is not connecting. Power light comes on but not connecting to one of the sides, computer or car, not sure. Any thoughts?

[StereoInstaller1]

On your OBD1 E30?

[bigdrick323]

On your OBD1 E30?

Will obd2 scanner not work on this car, sets up the same as my e46....

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[StereoInstaller1]

E46 = OBDII, so has 2 way communication. OBD1, AFAIK, lacks that ability, only a somewhat readable datastream.

[nando]

it's not going to work.

you want to do a "stomp test". E30s are basically at the technology level of sending an SOS signal through a series of beeps, only it uses the CEL to signal it's primitave morse code for "my engine is fucked" instead.

[bigdrick323]

Someone I'm sure has better idea about how to read them, it has a port for reading. What do I need?

[nando]

you're expecting it to give you OBDII levels of information but the stomp test gives you everything it has. It's not going to do what you think it does, it's way more primitive than that. it really is just a series of flashes from the CEL. # of flashes = specific code.

do a search for BMW stomp test. the only caveat is your TPS must function correctly.

[bigdrick323]

you're expecting it to give you OBDII levels of information but the stomp test gives you everything it has. It's not going to do what you think it does, it's way more primitive than that. it really is just a series of flashes from the CEL. # of flashes = specific code.

do a search for BMW stomp test. the only caveat is your TPS must function correctly.

Thank you, I'll check into it!

[StereoInstaller1]

Someone I'm sure has better idea about how to read them, it has a port for reading. What do I need?

It has a port, yes. For reading, not so much.

[bigdrick323]

It has a port, yes. For reading, not so much.

hahaha :)

[bigdrick323]

Stomp test didn't work, as soon as I turned car on check engine light is flashing and the 5 pedal thrusts and releases doesn't change anything with the check engine light.

[StereoInstaller1]

What year/model? Stomp test does not work until motronic 1.3, so roughly 3/89 or later.

http://www.unofficialbmw.com/repair_faqs/motronic.html

[bigdrick323]

What year/model? Stomp test does not work until motronic 1.3, so roughly 3/89 or later.

http://www.unofficialbmw.com/repair_faqs/motronic.html

It's an '88 325ic. vin: WBABB1300J1930560

[StereoInstaller1]

eh, was that unofficial page of any use? I know you can swap a "173" DME, that is what I did, but I never got the stomp test to work on mine, even after all was verified to be working. My ex's 7/89 325i worked flawlessly, but even swapping DMEs with her car I got no stomp test.

I even metered the pins on the DME, that TPS switch was correct values and all.

[UNHCLL]

http://www.peakeresearch.com/fcx3.htm