Idle feels like slight misfire but no CEL

K-Series Programmable ECU installation questions / support issues
saintjah
Posts: 29
Joined: Thu Sep 08, 2011 2:34 pm

Re: Idle feels like slight misfire but no CEL

Post by saintjah »

Well I mean my Kpro4, its completely new from Hondata. The old and new Kpro4 exhibit same patterns on the idle. I will refer this post to my tuner.
saintjah
Posts: 29
Joined: Thu Sep 08, 2011 2:34 pm

Re: Idle feels like slight misfire but no CEL

Post by saintjah »

my base is roughly 45psi, should I go with Hondata recommended settings or ID recommended? I think we used ID's references

http://injectordynamics.com/injectors/id1000/
saintjah
Posts: 29
Joined: Thu Sep 08, 2011 2:34 pm

Re: Idle feels like slight misfire but no CEL

Post by saintjah »

The idle afrs were pretty much spot on with whatever target lambda we set
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Hondata
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Re: Idle feels like slight misfire but no CEL

Post by Hondata »

saintjah wrote:should I go with Hondata recommended settings or ID recommended?
The ID supplied values are too low - we bought this up with ID many years ago and were told that the dead times are measured electrically, not by fuel flow. The values we have given you were generated on a vehicle. But use whatever you're happy with.
Hondata
saintjah
Posts: 29
Joined: Thu Sep 08, 2011 2:34 pm

Re: Idle feels like slight misfire but no CEL

Post by saintjah »

I will try Hondata values tonite, I will be happy with whatever corrects the idle issue ^^
saintjah
Posts: 29
Joined: Thu Sep 08, 2011 2:34 pm

Re: Idle feels like slight misfire but no CEL

Post by saintjah »

Hondata wrote: The other issue common with idle mixture is any very slight exhaust leak will give the o2 sensor a false reading.
Face palm on this one, Ill get it to a dyno to verify the lambda readings on the sensor. I cant hear and exhaust leaks but ill double check that aspect.

I used the Hondata wizard for the ID1000 voltage and dead time settings. Only thing that seems to completely cure it is increasing the AFR and it completely smooths out at 12.5
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