No Start: '85 325E

[mspiegle]

the pin outs for the motronic unit tests are on page 48 of the bentley manual under fuel system section 6. well, most of them...

I went through that whole procedure and everything checked out (which is why i'm baffled...)

[mspiegle]

Yup seen this 100's of times. Do you have the OBC with the 'code' function?

This can disable your car if there is a problem with the OBC or the relays.

James

I'll try searching for more info about this one

[bddog]

I have a spare ECU from my 84'e that I keep as a "testor". It works fine, I upgraded to a 027 that I chipped.
You could use it for a quick test of your ECU. I live in Torrance. --Steve

[mspiegle]

I have a spare ECU from my 84'e that I keep as a "testor". It works fine, I upgraded to a 027 that I chipped.
You could use it for a quick test of your ECU. I live in Torrance. --Steve

Hey,
Thanks for the offer but since this car is on its 3rd ECU... I want to rule that out as a problem. I left the battery unplugged overnight, so i'll check it today and see if that helped any (for the OBD code thing)

[bddog]

I sure hope you started by replacing fuses 9, 10, and 11- also the lambda relay

[arsevader]

I sure hope you started by replacing fuses 9, 10, and 11- also the lambda relay

02 heater relay has absolutely no effect on starting the car. The relays that count are the Motronic Relay and the Fuel Pump relay.

James

[mspiegle]

i'm not even worried about the fuel pump stuff (unless they would cause the ECU to not spark). First and foremost - I get no spark. I have jumpered the main relay and worked through the page on the bentley to ensure proper power and grounding to the ECU.

Is there a way to check and see if the ECU itself is sending the spark signals to the coil without having a scope?