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A/F Tuning Issue
Posted: Mon Nov 28, 2005 2:50 pm
by PRJ3CTM4YH3M
Using an external wideband gauge i have noticed something that bothers me that seems to have only started occurring since adding K-pro. Whenever, i initially increase throttle input, whether at 6k rpm or 3krpm, the A/f ratio goes really lean (close to 16:1) for a split second before going rich (open loop). This concerns me. How can i tune this out? its not the A/f tune itself. could it be injector pulse width?
K20z1
DCRH
CAI
60mm exhaust
Hondata IMG
running itr cam/dcrh/cai map for k20a2-- a/f tuned
Thanks
Matt
Re: A/F Tuning Issue
Posted: Mon Nov 28, 2005 3:29 pm
by Razathorn
PRJ3CTM4YH3M wrote:Using an external wideband gauge i have noticed something that bothers me that seems to have only started occurring since adding K-pro. Whenever, i initially increase throttle input, whether at 6k rpm or 3krpm, the A/f ratio goes really lean (close to 16:1) for a split second before going rich (open loop). This concerns me. How can i tune this out? its not the A/f tune itself. could it be injector pulse width?
K20z1
DCRH
CAI
60mm exhaust
Hondata IMG
running itr cam/dcrh/cai map for k20a2-- a/f tuned
Thanks
Matt
What does the stock wideband say in your datalogs?
Posted: Mon Nov 28, 2005 5:15 pm
by PRJ3CTM4YH3M
it spikes to 16:1 then goes rich IOW follows the wideband gauge (innovate xd-1)
Posted: Mon Nov 28, 2005 11:24 pm
by locash
Sounds like a throttle tip-in setting.. Although, there is no provision for adjusting this in the k-pro for some reason.. Future addition perhaps?
Does the car stumble at all when this happens?
Posted: Tue Nov 29, 2005 8:43 am
by PRJ3CTM4YH3M
no, doesnt seem to. on my r6 sportbike, i had a dynojet power commander (like an advanced fmu). it had a provision to temporarily increase fuel upon initial acceleration.
Posted: Tue Nov 29, 2005 2:24 pm
by Razathorn
Can you post a calibration and datalog of this happening?
Thanks,
Wayne
Posted: Wed Nov 30, 2005 8:17 am
by PRJ3CTM4YH3M
heres a print screen of two instances , i didnt want to post the whole datalog as its long
Posted: Wed Nov 30, 2005 10:55 am
by Razathorn
People aren't going to be able to do much without your calibration and datalog. Just open the datalog where it happens, set a new start and end point to the datalog and save it as another file. Upload that .kdl and the .kal calibration file.
Posted: Wed Nov 30, 2005 1:25 pm
by PRJ3CTM4YH3M
how do you set a new start and end point?
Posted: Wed Nov 30, 2005 2:53 pm
by Razathorn
PRJ3CTM4YH3M wrote:how do you set a new start and end point?
Pull up the datalog graph and click at the point where you want it to begin. There should be either a right click option or a drop down option on one of the menus at the top of the screen to set new start point. Repeat process for the end point, save datalog as a new datalog.