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KMoore68 KMoore68 is online now
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Join Date: Jun 2017
Location: Coquitlam, BC
Posts: 256
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Help with EFI ITB Tuning

Hi,

I have installed the EFI ITB kit that is the Triumph ITB kit that Clay pioneered a few years ago on my 1977 911 S Targa. I am running a Megasquirt ECU and I have downloaded TunerStudio to tune the car.

I can start the car, and it idles a bit rough but I'm having some difficulty with the tuning.

I've been reading the ECU Tuning thread and find it quite informative but I was hoping for some other assistance.

On startup, the AFR is indicating a lot of fuel and I can smell it but I'm not sure what adjustment I need to make. Here are my settings.

You can see that the AFR is quite low but after running for a few minutes, it does jump up to between 12 - 13.

My thoughts are to take the car to a local dyno and get it professionally tuned but I wanted to make sure it was ok to drive to the dyno.

Any thoughts?






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Kevin
1977 911 S Targa
Old 03-23-2025, 04:41 PM
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