Hondata

Hey All,

I am dialing in my tune and trying to understand how TPS fuel moving works.

What does "Rate of change" mean for this table? what does the 4, 8 and 16 signify. Is it the rate at which you depress the throttle and how quickly it opens? What is the unit of measure here?

For example, if i ...

Keep in mind that you also have target lambda limits by ECT settings, when the ECT is low that usually triggers and differs from your overall lambda target as well as the fuel compensation tables based on ECT and IAT, so there is a lot more going on under the hood.


I see...in order to warm up ...

This looks like pretty normal behavior and that's why you must delay using closed loop from a wideband until the O2 heater has a chance to warm up.


Awesome...is there a benefit/possibility in KProV4 to increase the duration of open loop operation during the cold start period? A friend said you ...

Hey All,

Trying to learn a few things about tuning...need some input...

On cold start up...the AFR seems to fluctuate quite a bit and then level out...by my fuzzy math...here is what I think is happening.

1) car cranks and fires...o2 sensor takes a bit to warm up and read the AFR
2) car uses open ...

Spunkster,

Thanks for the reply...im pretty disappointed that there is a possibility that my KPRO could be bad considering it wasn't something I did to damage it.

I have posted a request on K20A.org for help. I will update when I know more.

Thanks again,

Murph

Spunkster,

Is it possible for me to pay to have the ECU Shipped to hondata for validation?

Unfortunately, I don't know anyone with a car that uses Kpro locally...or at all for that matter.

Thanks,

Ian.

Hi All,

I am having K swap woes and am in need of some assistance.

Car: 99 integra ls
Motor: 07 k24a2 - Stock everything except an intake, header and 3 inch exhaust.
ECU: KPRO V4
Harness: Hybrid Racing DC conversion harness

Issue: A/F reading high (22.3 +) and I cant enable closed loop ...