Electronic Throttle

[rayhall]

I have a M150 on a Audi V10 engine with one throttle body. It has never worked reliably from day one. I have had Ian
and Motec HQ try to get it working. I have been banded from this forum for been critical or the M150 and Motec support.
The problem will not go away. I am loosing throttle control a lot. I have replaced the throttle body with a new one. New wires from the throttle body to the M150. Then replaced the throttle pedal with a new one. Only thing I have not done is new harness from the pedal to the M150.

I am convinced the problem is not my wiring and have replaced all hardware except the M150. I have been accused of damaging the M150 as have wired it incorrectly. It is time for Motec stop believing they cannot do any thing wrong and fix this problem.

I believe the problem is the firmware code is badly written and not suitable for a race or performance engine. The error checking code logic is flawed and too fussy or paranoid of any minor error.
I have screen shots, datalog and my package.

My car is no my dyno at the moment and I cannot ramp it as I keep loosing throttle. I deal time for Motec to send a engineer to fix this fault.

Ray.

[rayhall]

Here is the package and a screen shot of the pedal settings.
The tracing signal is a mirror image of the main signal. If this is the problem how can I fix it.
Ray.

[bing]

It seems your pedal tracking voltage calibration are off...

[z0mgchris]

As Bing mentioned, your voltage calibration seems wrong. I'd be doing a fresh offset and scale setup to see if it helps.

[rayhall]

All fixed for now. I had to do the calibration three times before it worked. I have no confidence. Has stopped working so many times in the past.

Thank you ,
Ray.

[z0mgchris]

Glad to hear you got it somewhat sorted!

If I ever get around to coming up there to do some subarus Ray, Im happy to drop by and look over stuff with you if desired I'm fairly certain one of my subaru customers (young-ish) up there is friends with you / has been in to see you a fair bit. I've also spoken to you a couple of times on the phone over the years.

[rayhall]

Chris,
You are welcome to drop in any time.

Ray.