Pete Tee Posted August 27, 2021 Report Share Posted August 27, 2021 So disclaimer I am new to this and be gentle , I am looking to learn and assume I know very little All the help is greatly appreciated. I looked on some prior forums and through the help section but its a bit wordy and confusing. So here is the problem I am having Link G4x ecu. I am getting a Code 77 and/or 76. When put the E-throttle to "ON" Mode. I have gone through the calibration of the APS and stored it then the calibration of the TPS and stored it and I am getting the same issue. I noticed something that was weird is that the TPS Main is 44 % on WOT and TPS Sub is 72% at WOT. So I have been scratching my head and wondering if this is normal? Also I am slightly confused about where to set the TPS (Sub) 100% value and the same with the APS (Sub) 100% value. Can some one give me a hypothetical of how to set these based on my current map and log. I have attached 2 logs the first log (8-25-21) is of the TPS/APS calibrated with the E-throttle to "On" mode with the engine off showing the pedal sweep and the values it is producing. The second log (8-26-21)is of the car with the TPS / APS Calibrated with the E-throttle set to "Setup" mode as we had the car on the dyno doing a pull to show real time values of it through the range with a load. PC Datalog - 2021-08-25 8;43;45 pm(Link1).llgx PC Datalog - 2021-08-26 6;36;47 pm(DynoPull).llgx waynebaseis300(523Whp).pclx Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 28, 2021 Report Share Posted August 28, 2021 The dyno run looks like the throttle was working not bad, the PID may need a bit of work later to settle down the little oscilation it has when closing. But the main problem that is causing the fault is the APS (Sub) 100% setting. This setting tells the ecu at what percentage of TP main the TP sub "tops out". Yours looks like it needs to be set to about 70-71%. You need to manually set this value, change E-throttle mode to Set up and then adjust the APS (Sub) 100% setting. Quote Link to comment Share on other sites More sharing options...
Pete Tee Posted September 1, 2021 Author Report Share Posted September 1, 2021 @Adamw Hey Adam, Just wanted to follow up on this, first and foremost thanks for the quick reply. I was able to make the changes today to the APS and TPS Sub 100% values as you showed in the screenshot using the time plot. I drove the car in various driving conditions and it performed perfect with no " ECU Codes". I appreciate the help again and will post up a new log so that we can work on the PID's once work/life slows down a bit. Quote Link to comment Share on other sites More sharing options...
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