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Message: [QUOTE="Mcrafty1, post: 1361394, member: 15614"] If you haven't cleaned your turbo...It could very well be a stuck unison ring. Just because the dash gauge says it's boosting up to 26 doesn't mean it actually is, it just means that the PCM is calling for that much boost. The PO299 pops up when the turbo won't actually produce what the PCM is calling for. I believe there is a time lapse of 15 seconds before the code pops up when the PCM demands it which is why it doesn't always set the code. There are other reasons for the code, many of which you have already addressed....this is another of the common ones. [/QUOTE]

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