BURGESS.DJ Posted July 28, 2015 Report Share Posted July 28, 2015 (edited) Hi I have recently wired and set up a 1uz with the factory 6 pin idle controlWiring the 6 pin stepper as per manualAux 5&6 to one set of coils with common 12v and aux 7&8 to the coils I have got the engine running and set the idle base positions map to get a 800-900 rpm hot idle and have set up to run ecu hold power. And checked to make sure it all worked.Whenever I switch off engine ecu hold.power activates and the stepper count drops to zero and pauses for approx 3-4 seconds then rises back to my set number for the temperature of coolant. But when I go to start it again it's at 3000+ rpm but the step count is at the idle number is this what happens when aux 5&6 are around the wrong way?So when it resets the stepper it actually goes the wrong way and ends up thinking it's reset for idle again but it actually open all most fully? Thanks Edited July 28, 2015 by BURGESS.DJ Quote Link to comment Share on other sites More sharing options...
Simon Posted July 28, 2015 Report Share Posted July 28, 2015 Yep this could be the direction is wrong or it could be that the max step count is incorrect and the stepper is loosing its position at the end of the travel.You want it to reach fully open and then stop. It is not good if it sits rattling at the end of the travel. Quote Link to comment Share on other sites More sharing options...
BURGESS.DJ Posted July 30, 2015 Author Report Share Posted July 30, 2015 Do you mean max clamp? Quote Link to comment Share on other sites More sharing options...
Simon Posted July 30, 2015 Report Share Posted July 30, 2015 Yep max and min clamp settings will have the biggest impact on the reset. Quote Link to comment Share on other sites More sharing options...
BURGESS.DJ Posted July 30, 2015 Author Report Share Posted July 30, 2015 Have tried this tonight and no improvement changed wiring to another configuration listed on here for an i88 running the same 6 pin stepper on a supra after another user had the same problemswiring is as follows aux output to pin on stepper motor AUX 5 to pin 4Aux 6 to pin 6Aux 7 to pin 1Aux 8 to pin 3I have confirmed wiring is correct with the larger number on idle base table lower revsWhen I do the key off and the stepper resets the numbers of the Min and Max clamp values were 50 and 155 where the stepper was not clicking at the end of travelbut for the engine to engine to idle correctly the base value needs to be approx. 300 at 80-90C so the clamps need to be changed for this from here I am confused as to why this wont workas when I enter the number to get the correct idle speed I want and then reset the idle is crazy low 400-500rpms again each time no matter what min and max clamp is set to Quote Link to comment Share on other sites More sharing options...
Simon Posted July 30, 2015 Report Share Posted July 30, 2015 If you have the max clamp at 150 and the base table figures around say 70 how is the idle then? Quote Link to comment Share on other sites More sharing options...
BURGESS.DJ Posted July 30, 2015 Author Report Share Posted July 30, 2015 The idle is 400-500 rpm even after a reset still 400 -500 needs to be at 300 ish for the idle to.come up to acceptable value Does someone have a pinout with locations of where aux 5-8 go for the toyota 6pin stepper otherwise I will try a few different combinations from other ecus but it seems they run with 4 wires only Quote Link to comment Share on other sites More sharing options...
BURGESS.DJ Posted August 1, 2015 Author Report Share Posted August 1, 2015 Fixed got that sorted and works good now another question I wanted to check timing so I did the calibration as per the manual Locked at 10 and it was bang on o no adjustment required there but when I bought revs up to 3500rpm.and held it retarded to 5 degrees I started to enter numbers in to delay and recheck each time larger and larger start at 10 ended at 500 and no change at allThe motor is a 1uz with twin distributor running stock coils and ignitors is there a mechanical reason there was no.change at all ? Quote Link to comment Share on other sites More sharing options...
JMP Posted August 1, 2015 Report Share Posted August 1, 2015 have you got the reluctors wired correctly with regard to polarity? Quote Link to comment Share on other sites More sharing options...
BURGESS.DJ Posted August 3, 2015 Author Report Share Posted August 3, 2015 Thanks for the reply I figured it out. I did a trigger scope and wave patterns are polarity correct I then recalibrated the trigger and entered a new value into ignition delay this time and pressed enter and it worked. haha. Didn't know I had to press enter while still in the screen. Quote Link to comment Share on other sites More sharing options...
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