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Old 04-11-2016, 02:32 AM   #1
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Default Output Test mode - Idle Valve

hi guys my Idle valve seems to be working in reverse? When i went to the output test mode- idle valve when i clicked enable test run and set it to 0 my rpms went from 1100 to 3000, this is with the valve mode in "Normal, 0% = off" shouldnt my rpm stay the same? and only go up when i reach a certain number? (ie 26). Im following this guide to help me set up my idle: Mega Miata: Basic idle settings. and vise versa with the valve mode on "invert" where 100% = off. im trying to get my min/ max pwm % so i can set up the CL idle. Thanks guys!! my car is running a mspnp2 na 1.6 miata.
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Old 04-11-2016, 08:18 AM   #2
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no. The way the idle valve rotates it can open back up under a certain value.

you're going to find you'll be running your valve between 25-60% PWM.

values outside that range will just cause the valve to open 100%.
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Old 04-12-2016, 10:32 PM   #3
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Quote:
Originally Posted by Braineack View Post
no. The way the idle valve rotates it can open back up under a certain value.

you're going to find you'll be running your valve between 25-60% PWM.

values outside that range will just cause the valve to open 100%.
i tried to go thru the ranges today and it was really weird, my rpm would stay the same from 0-63 steps and past 63 it would start to drop my rpms till i stall which is about 80ish steps. shouldnt my rpm raise?
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Old 04-26-2016, 03:14 PM   #4
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Hey, I am also have trouble in idle.
I am sitting at about 600 when my NA likes 850. We know that it's running rich, seeing as how the AFR is at about 11-12.3. I've adjusted the AFR and VE tables, but to no avail. I saw that maybe it might be Accel Enrich issues, but I can't figure it out. How do you adjust the idle position?
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Old 04-26-2016, 05:17 PM   #5
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The idle valve position is adjusted by changing the idle duty cycle table (in open loop) or idle target table (in closed loop).
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Old 04-26-2016, 07:05 PM   #6
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Gotcha. Is there anything I should be adjust in the base maps other than that and the fixed timing?
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Old 04-27-2016, 04:18 PM   #7
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Should I be adjusting Idle cranking Duty step table? Idle Warmup Duty step table? or both?
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Old 04-28-2016, 10:53 AM   #8
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Cranking duty is for startup, warmup duty is for running.
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