Idles very high(3000rpm) tho changing parameters

K-Series Programmable ECU installation questions / support issues
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Akira
Posts: 8
Joined: Tue Sep 05, 2023 7:40 am

Idles very high(3000rpm) tho changing parameters

Post by Akira »

<Problem>
Idles very high (3000rpm)
I cannot decrease idle rpm even though changing idle parameters.
I tried decreasing "Idle speed" and "Idle valve duty cycle adjustment"
When ECT is low, it idles around 1200rpm. However, once ETC gets higher, it idles up suddenly to 3000rpm.


- vehicle: NB miata swapped with k24a. The engine is from JDM odyssey absolute.
- serial number: 64860
- version: kpro4
- ECU part number:37820-PPA-A58
- KManager version: 4.5.6.0
- the calibration (as an attachment)
- a datalog of a problem (as an attachment)
- stock miata/ stock engine
- bought kpro4 at KPowerIndustries in this July

Akira Takikawa
Best,
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TTR
Posts: 112
Joined: Wed Mar 31, 2004 8:48 pm

Re: Idles very high(3000rpm) tho changing parameters

Post by TTR »

Most likely the IAC is stuck. Take the IAC apart and clean the vane and housing until it spins freely.
Akira
Posts: 8
Joined: Tue Sep 05, 2023 7:40 am

Re: Idles very high(3000rpm) tho changing parameters

Post by Akira »

Thank you very much for the quick response.
I will try to clean IACV.
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