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The mkiv Supra Owners Club

Lumpy idle


Stonkin

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First off i really cant See heat soak causing that sort of AFR figures, there is something ECU/sensor wise affecting hot idle AFRs.

I would log injector duty cycle, duration, in relation to TPS, pressure sensor voltage, and see if it show what causing this, all other AFRs are within the expected range.

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Just a thought, but i know the car was mapped with Tesco 99 and i have mostly been using VPower, this wouldnt affect it would it?

 

That shouldn't make any difference mate, as for the EMU software, presuming you have whatever full version installed on you're laptop, and if you don't have it installed, look for which of them is a full version and install, then just go for the latest version update, think its 2.20 now.

Them when you connect to the EMU it should ask if you want to update the main unit, so just click yes and it will do this automatically.

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