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Old 03-20-2021, 08:27 AM   #146
pro_turbo
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Quote:
Originally Posted by wparsons View Post
Your earlier comments made it sound like there is a video of someone else with an automatic and the same ECU working properly.

Based on your video, it looks like there are multiple issues.

1) Not shifting up without lifting off the gas
2) Not blipping on downshifts
3) No ignition cut on upshifts
4) Lazy full throttle shifts

I'm going to assume that the firmware/tune on the ECU is meant for a manual car and is missing functionality to make it work right.

For 1 and 4, I think the TCU isn't seeing a valid load (or similar) value from the ECU. RPM, TPS, vehicle speed are all shown, but what about engine load? The TCU will use RPM, TPS, vehicle speed AND engine load to determine when to shift. I would assume it also uses load to determine how hard/fast to shift. I would try logging anything related to engine load on both ECU's, and the TCU to see what is different between the stock ECU and the motec.

For 2 and 3, those will be trickier to fully solve. For shifts done manually you'll just need the tune to cut ignition on upshifts and blip throttle on downshifts. To make it work on automatic shifts, it'll need more integration with the TCU so the ECU know that the TCU is shifting (since it won't have input from the shift up/down switches on the steering wheel).

Why do you have the motec in the first place? It doesn't sound like your setup needs anything beyond what a stock ECU with EcuTek can easily handle, and that won't have all these integration issues.
Ok.. and the number 5 is start button 1 press start. Immediate start the engine
The motec has this feature . But somehow it did not working

And if you really watched the video.. i explained everything that the data from the TCU is the same that the motec reading.
Even before i start the engine
And of course this is the first thing i ve been doing to the motec.
I calibrated everything down to the last two digits behind point..
So trust me the tcu and ecu are sync perfectly.

Yeah i agree about blip and flat shift. I defenetely can configure it later when done with the light throttle thing

The point is. This is claimed to be plig in solution with all the stock ecu has. And it came with a packages and map that already tuned by motec guy. They claimed all the same feel with stock ecu.

I have edelbrock SC. Just not yet installed. Before this problem fix.

Motec are still working on this.
They also feel there is some lost or interference in CAN comunication system between motec and TCU.
I already scan the can with CAN analyser and send them like 250mb of 15 minutes driving on 500k

Let see where it goes.
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