AIV Flags

Nistune topics related specifically to the 6303 cpu

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RJBijsterbosch
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Joined: Sat May 20, 2017 1:35 am

AIV Flags

Postby RJBijsterbosch » Wed Oct 04, 2017 5:54 am

I'm just wandering what the AIV flags are used for and what they do?

The standard Z32 RB25DET bin file has BIT 7 selected, in my bin file BIT 7 is not selected.

AIV flags.png
AIV flags.png (178.82 KiB) Viewed 173 times

Matt
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Re: AIV Flags

Postby Matt » Wed Oct 04, 2017 4:40 pm

Disable air intake valve. I'm not sure what the function of the other flags are which is why they are not labeled (probably other functions)

RJBijsterbosch
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Joined: Sat May 20, 2017 1:35 am

Re: AIV Flags

Postby RJBijsterbosch » Thu Oct 05, 2017 6:42 am

What do you normally see? Is the AIV switch off or on normally. (RB25DET Z32 ECU) What's the benefit of turning it off. I cannot think of something to switch it off?

Matt
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Re: AIV Flags

Postby Matt » Thu Oct 05, 2017 2:29 pm

Normally for 41P03 the AIV flag is enabled. Not sure why disabled in yours. People with Z32 remove the air intake valve, and disabled the flag so the ECU does not use it

Eric
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Re: AIV Flags

Postby Eric » Fri Oct 06, 2017 9:20 pm

the AIV system is only on Z32's afaik.
It injects air into the rear catalysts to help these get up to operating temperature.
Unless your car also has this system (and it is still fully functional), you can turn this off


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