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This probably has happened before to someone and hopefully someone can point me in the right direction.

Last month I got my Power FC installed and car tuned at Ultimate. When it was tuned the guys noticed the engine light flashing, and tuned it for the knock the Power FC was telling them. Now under slight load, the light flickers, but no I can't hear any sign of knock in the engine.

They did suggest to run a few bottles of injection cleaner through the system, but that hasn't made any difference.

I also did some research but still can't put any one finger on a problem. So any advice would be appreciated on how to fix it. They did offer a retune at no extra cost, but I want this problem fixed before it goes back.

Cheers guys.

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https://www.sau.com.au/forums/topic/387982-something-very-confusing/
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what knock is the powerfc showing on the hand controller? 60+ will flash the check engine light

is the engine water temp getting to 100+? this will also bring the check engine light on.

does your exhaust still have the cat temp sensor? from memory in the R32 this detecting the exhaust is too hot will turn on the check engine light.

I have GReedy temp gauges for front and rear of the engine and it does go above 100 degrees and I will have to check the exhaust. But the temp on the stock gauge does read normal. And have never had the knock go above 60.

The car does run 98 all the time.

And the tune was about $560 from memory, but that was also them installing the power fc and boost controller.

The tune was done a month ago.

I know the knock it has isn't as good as it should be, but finding out whats wrong with it is extremely hard as noone can put a finger on it, or point me in the right direction.

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