Bouncing Idle K20A3 w/ K20A2 intake manifold

K-Series Programmable ECU Calibration updates / downloads
Post Reply
frostydc
Posts: 3
Joined: Tue Nov 27, 2018 3:37 pm

Bouncing Idle K20A3 w/ K20A2 intake manifold

Post by frostydc »

I have disabled the secondary runners through Kpro and it is bouncing idle from ~1500-2800 rpm. I put in a new throttle body gasket, intake manifold gasket, and am not finding any open vacuum lines. Tried a different map sensor and same results. I've attached a quick datalog as well as the base rsx tune I'm using. Am I missing something?
Attachments
rsx base.kal
(159.07 KiB) Downloaded 43 times
bouncing idle.kdl
(399.07 KiB) Downloaded 33 times
User avatar
Spunkster
Site Admin
Posts: 19366
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Bouncing Idle K20A3 w/ K20A2 intake manifold

Post by Spunkster »

Have you tried cleaning the idle controller?
frostydc
Posts: 3
Joined: Tue Nov 27, 2018 3:37 pm

Re: Bouncing Idle K20A3 w/ K20A2 intake manifold

Post by frostydc »

Yes I did, forgot to mention that.
User avatar
Spunkster
Site Admin
Posts: 19366
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Bouncing Idle K20A3 w/ K20A2 intake manifold

Post by Spunkster »

You appear to still have some kind of air leak, or the idle controller is stuck.
frostydc
Posts: 3
Joined: Tue Nov 27, 2018 3:37 pm

Re: Bouncing Idle K20A3 w/ K20A2 intake manifold

Post by frostydc »

The throttle plate was worn enough that it was letting air in even when closed. Sprayed the inside with Moly Lube and it sealed it up, so now it idles fine.
Post Reply