Syvecs Forums

I have interesting detail to add, vbat only showing 7.3 v vs 12v ish with voltmeter at ecu power pins.

And yes. Tb works as it should if put to 12v and ground both ways closing and opening. It feels like output on dbw a2 and a3 does not match output requested by ecu . Or im not requesting enough power to open blade .

I can see ecu increasing pd gain and ig gain till it hit set limit for pd or ig is what i see in log . It seems as im not applying enough power to tb motor to overpower resistance of return spring on throttle blade.

Yes, i cant get blade to move to set duty cycle. With dc 50% it moves 2 percent from 3.5 percent to 5.5 or 6 percent. That 2 percent is where the slack is in throtlle body where no pressure aplied by tb blade spring. I can see ecu apply pd gain and integral gain . I can feel some force being aplied ...

Key on engine off. With current scal setting blade at 6 percent should be 50 percent . With no duty aplied blade will be 3.5 percent , that is its natural position . So it is trying to open , but wont .

Calibrated pps and tps as per insctructions. No issues.

I set 50 % duty cycle to see if throttle would move, to see if duty is being applied. Just a test. It has nothing to do with wanting 50 dc at crank.

Its only one throttle body, wired to a2 and a3 . a2 labeled as dbw . dbw 2 not connected. I did try a3 as dbw 2 , hopefully i didnt fry an output. I have messaged syvec support asking for instructions on how to test dbw output. When i move throttle body by hand over set duty cycle , i can feel motor...

What are you guys have in calibration for kick open/close duty and time?

Thank for the help. I think im close . At least i can confirm it is wired correctly , full bridge , just need to play around with pd ig tables.