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M4.4 sanity check?


gdog

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  • 2 weeks later...

No, no anti-lag "feature" installed.

The cat was definitely causing excessive back pressure but no way to know which was the egg and which was the chicken in this scenario (between cat becoming plugged up or hot side housing failing).  Also note the BOV had a vacuum leak in it too, so it wasn't functioning properly; am sure that didn't help either.

With new housing and free-flow cat in there now, the difference is quite dramatic; feels like a new engine again!  Though had to back way off on load request in the tune; as I said, tuning starting anew again.

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