We recommend staying with the factory PCM and having it tuned to suit. With regard to he surging issue, I would recommend that you try cleaning the MAF and also check the TPS (throttle position switch).
I have just bought a VY storm ute and I am thinking about upgrading the ECU but I am facing an issue at the moment with the car surging under light throttle, I was wondering if you guys have heard anything like this before and can you suggest some modific
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