kpro prb v3 idle ignition jumpy?

K-Series Programmable ECU installation questions / support issues
Post Reply
kanashibari
Posts: 5
Joined: Tue Nov 25, 2014 3:14 pm

kpro prb v3 idle ignition jumpy?

Post by kanashibari »

Hi there I have a problem that I have been working for a long time.
The advance of the vehicle at idle is not stable.
Any suggestions?
Video below

https://youtu.be/zy0D-gJXcjg
User avatar
Spunkster
Site Admin
Posts: 22745
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: kpro prb v3 idle ignition jumpy?

Post by Spunkster »

The K-series ECU uses ignition controlled idle and it will jump around at idle.
kanashibari
Posts: 5
Joined: Tue Nov 25, 2014 3:14 pm

Re: kpro prb v3 idle ignition jumpy?

Post by kanashibari »

thanks for your answer
I wanted to consult you because this is strange to me

is everything normal?
afr fluctuate with sudden falls of up to 18 s failure?
Is there a setting I need to check.
I have installed base map again.
close loop or open loop does not matter, it is constantly fluctuating
ignition advance on the road as we have specified in the map
my car k24a2 ekkswap
engine renewed 87.5 mm standart cr piston fitted. this problem started
User avatar
Spunkster
Site Admin
Posts: 22745
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: kpro prb v3 idle ignition jumpy?

Post by Spunkster »

You will need to post the calibration as well as a datalog made with that calibration showing the issue.
kanashibari
Posts: 5
Joined: Tue Nov 25, 2014 3:14 pm

Re: kpro prb v3 idle ignition jumpy?

Post by kanashibari »

Sorry for the passing. I've attached files.
I'm waiting for your answer
Attachments
ignition jump.kdl
(130.65 KiB) Downloaded 124 times
ignition jump.kal
(162.07 KiB) Downloaded 102 times
User avatar
Hondata
Site Admin
Posts: 10434
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Re: kpro prb v3 idle ignition jumpy?

Post by Hondata »

The o2 sensor is working and the engine is in closed loop but the short term trim is not moving.

Why are errors P1167 and P0134 disabled? Does the short term trim ever move?

A warm idle manifold pressure of 41 kPa is high, especially on a K24. To me this indicates the cam timing is not correct.
Hondata
kanashibari
Posts: 5
Joined: Tue Nov 25, 2014 3:14 pm

Re: kpro prb v3 idle ignition jumpy?

Post by kanashibari »

The o2 sensor is working and the engine is in closed loop but the short term trim is not moving
-Yes is moving, but the datalog is not noticeable because it is too short.
Why are errors P1167 and P0134 disabled? Does the short term trim ever move?
-Tuner did. I will fix it.
A warm idle manifold pressure of 41 kPa is high, especially on a K24. To me this indicates the cam timing is not correct.
-clinder head intake porting and polish intake manifold RBC and 70 mm throthle body. do they affect it?
Post Reply