k20a3 jrsc jumpy a/f at idle

K-Series Programmable ECU Calibration updates / downloads
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dimilo
Posts: 4
Joined: Wed May 20, 2015 10:35 am

k20a3 jrsc jumpy a/f at idle

Post by dimilo »

Hey guys,

I'm pretty new to kpro, but I've been reading up a lot on it. I'm working towards getting a street tune, but currently I've run into a few issues.

First off the issue is my a/f ratio seems to be everywhere from 11 -17 during idle. I know this is wrong and ideally I would want a target lamba of 14.59. I've also tried adjusting the idle valve duty cycle with the below parameters and haven't had much luck with it.

From the basemap, all I've touched is the following parameters:
1. knock CEL,
2. lean protection 1: enabled
3. idle at 900
4. gear ratios for z3 tranny
5. switched to PLX wideband with a -.1 voltage offset in Options>settings
6. scaled tps: min:1.1% max:101.6%
7. disabled secondary O2 sensor (heater, etc)

I do notice my IGN percentage seems to vary a lot too, so I'm wondering if something is off there? Anyways see my attached data log at idle and any help would be greatly appreciated.
-150520-000.kdl
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