jzx_jake Posted May 29, 2018 Report Posted May 29, 2018 Hi everyone, Running a 2JZGE VVTI and noticed the vvti position hunts back and forth all the time. If I apply the throttle very gently the vvti position is smooth. I've tried adjusting the vvti solenoid frequency with no luck. Any ideas? Jake_tune_1.pclr Log 2018-03-26 5;34;58 pm.llg Quote
Adamw Posted May 29, 2018 Report Posted May 29, 2018 Can you do a PC log so all parameters are recorded, there is not much data to go off in your log. Quote
jzx_jake Posted June 29, 2018 Author Report Posted June 29, 2018 Sorry I never got a chance to do a log, car was down for paint. In case anyone has this problem I fixed it by lowering the proportional gain to 3.0 in the vvti inlet LH control settings Quote
Grant Baker Posted October 12, 2018 Report Posted October 12, 2018 Hi I've got a log of a pulsing VVTi System... Don't know if that helps? What was your Proportional prior to it being reduced to 3.0? 1JVVTI.llg Quote
Adamw Posted October 12, 2018 Report Posted October 12, 2018 1 hour ago, Grant Baker said: What was your Proportional prior to it being reduced to 3.0? The proportional for the 1JZ vvt mode is 6.0 when set to default PID mode. This works ok for most 1J/2J's but I have seen a couple recently need lower P. I dont know if it is related to wear of the hardware, oil viscosity/pressure, or some other variable. Grant Baker 1 Quote
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