We're building an E-30 racecar for a customer.
The car is pretty much ready, mechanically speaking.
There are a few minor electrical issues that need to be resolved.
The car is currently running the standard motronic unit.
It has an aftermarket fuel pump, run to switched power.
The coil and ignition system have also been altered to run on switches.
The problem we are facing is that someone else did earlier electrical work on this car, and the car will not run with the current setup.
The fuel pump works, the car will crank...but we have no spark.
There is power to the Motronic, and power to the coil.
Basically, what are the MINIMAL requirements to achieve spark, (what wires need to go where) and what are the overall MINIMAL requirements for the Motronic to operate the injectors?
Please be as detailed as possible, Motronic pin positions and wire color codes would be great.
Our build specialist is a BMW Certified Mechanic, and he's been working on the car off and on for a few weeks, and tomorrow afternoon a consultant from the BMW Dealership is coming to take a look at it. We've tried two different Motronic ECUs, we get continuity on all connections, so we're not quite sure what's wrong.
Here's what we're dealing with:
We'll be replacing the existing switches and routing them to a master panel in the dash we fabricated, and the wiring will of course be re-sleeved and routed through conduit. We're looking to eliminate the fusebox and C101 also.
Any help would be appreciated, thanks.
The car is pretty much ready, mechanically speaking.
There are a few minor electrical issues that need to be resolved.
The car is currently running the standard motronic unit.
It has an aftermarket fuel pump, run to switched power.
The coil and ignition system have also been altered to run on switches.
The problem we are facing is that someone else did earlier electrical work on this car, and the car will not run with the current setup.
The fuel pump works, the car will crank...but we have no spark.
There is power to the Motronic, and power to the coil.
Basically, what are the MINIMAL requirements to achieve spark, (what wires need to go where) and what are the overall MINIMAL requirements for the Motronic to operate the injectors?
Please be as detailed as possible, Motronic pin positions and wire color codes would be great.
Our build specialist is a BMW Certified Mechanic, and he's been working on the car off and on for a few weeks, and tomorrow afternoon a consultant from the BMW Dealership is coming to take a look at it. We've tried two different Motronic ECUs, we get continuity on all connections, so we're not quite sure what's wrong.
Here's what we're dealing with:
We'll be replacing the existing switches and routing them to a master panel in the dash we fabricated, and the wiring will of course be re-sleeved and routed through conduit. We're looking to eliminate the fusebox and C101 also.
Any help would be appreciated, thanks.
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