Kroon Harness for 944 Turbo

Talk and Tech about turbocharged 924/944/968 cars
Mscromer
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turbotoys wrote: Wed Jul 22, 2026 9:19 pm
NCGermerican wrote: Wed Jul 22, 2026 12:48 pm
turbotoys wrote: Sun Jul 19, 2026 8:28 pm
Dennis... I just looked at my startup logs today. Note it's HOT out and my starting ICT temps were 99F. The ICV was closed down to 10% ish and got to 40% within a minute. Now.. My issue is that the cold idle is in the 750 range and when warm heads towards 850.

Tomorrow, I'm going to get it up to 195F and properly set the ICV and idle and see if the grounding of the orange/black makes a difference. I'll let you know
Thank you sir! Looking forward to seeing the results after shorting out the MAP pigtail. I've done the same and hope to see what happens tonight. One thing to clarify - when you say the ICV was closed down to 10%, does that mean the ODB+ showed 10% open or 90% open (meaning 10% closed).

Man do I hope Joe chimes in on this to put it to bed. It's making my head spin.

.......maybe I should have just spent another $1K on the Kroon Harness and gone the MAXXECU route.........

An update... While my idle was "good" where it's improved is when the car is 100% cold. I can now drive it right away and it's smooth. In general it's a bit better and I'm happy with how it's running.
I’m glad this F9 DME quirk is getting out to everyone. It was a big improvement on how my car idled. I just don’t understand why F9 doesn’t tell everyone to short out the MAP plug when you purchase one. It would save a lot of people headaches chasing down rough or poor idles. I was chasing mine down for 2 months.

#191

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