Evo DBW

[mig23t]

@Adamw set it up this morning following that arrangement and hit the calibration, and I'm getting an error back;

Error 16: cannot reach target 98%

what is this actually meaning?

 

[Adamw]

It means the ecu put max DC to the motor but it didnt reach fully open.  Possibly means the PID still isnt close enough. 

If you have already calibrated throttle you dont need to do this again.  Do us another log and I will check

 

[mig23t]

@Adamw ive got the log attached for the aps calibration followed by the tps calibration and the error

 

 

aps and tps log.llg

[Adamw]

Still PID needs work by the looks.  You can see the first 2 open and close movements went ok, then on the third one it lost control and went into an unstable oscillation.  

Can you attach the current tune, I will see if I can offer a suggestion.

[mig23t]

interesting, thanks for that. Tune is attached, bare in mind the car currently is untuned, it just has the base evo map loaded into the ec (new)

@Adamw

 

lancer ecu tune.pclr

[Adamw]

Drop the proportional gain down to 7.0 to see if it is happier there.  10.0 is higher than I normally see.  

Wouldnt hurt to update the firmware before you tune also, lots of improvements in 5.6.8

[mig23t]

@Adamw no probs will do, thanks mate.

 

Bit of an update, got it working to a degree

I think the fine tuning of the pid needs further adjustment 

[mig23t]

Quick question @Adamw

how likely is it that the throttle body Ive got needs to be replaced? Had a mate around yesterday testing my wiring at the connector end of the TB and the link loom plug. Everything was checking out fine with that. From the attached photo, the tps main closed will not drop lower than 2.429v, would that indicated that the tb itself may have an internal issue based on any experiences you have seen?

Calibration is pretty average, using the pedal it gets to about ~50% throttle input, the butterfly in the TB starts to flap back and forth pretty wildly.

 

[Adamw]

Looks normal to me.  Usually the voltage span on one sensor is half the span of the other sensor.  Swap the tp main and sub as its better to have the larger range as the main but that wont make any difference to the control. 

If its oscillating then you or your tuner need to tune the PID. 

[mig23t]

@Adamw

Hey mate, back at it again still trying to set this thing up. Log and ecu save is attached. I tried to capture the log during on-set up mode an then on to show the error Im getting when I move from on set up to ethrottle on. Its now throwing E-Throttle Min %DC Limit at me. What have i set up incorrectly there?

In on - setup mode, 100% pedal input is visually only giving me about a third of throttle plate movement

 

P - 7.00

I - 0.102

D - 30.00

deadband 0.2%

Max clamps 90%/-90%

ECU save.pclr ethrottle log.llg

[Adamw]

Looks like you need to run the TP calibration.

[Mr.T]

@Adamwhi adam, i was install dbw in evo 9 G4+ pnp. can i use ISC stepper Aux,  from Aux 5-8 To dbw throttle? Cause i don't need to rewire again. since the isc stepper not function in the connector, so i can use 2 Aux isc stepper wiring for 2 dbw motor 

[Adamw]

The DBW motor needs to be connected to Aux 9&10.  You could possibly repurpose the Aux5/6/7/8 wires by connecting them to aux 9/10 etc at the ecu end, but you will need an expansion loom to access aux 9/10 anyway so it is probably easier to run the expansion loom all the way to the throttle body.