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It would help if you data logged via UpRev so that you can determine what your MAF is reading , timing adjustments, as well as what your A/F ratio is
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A True Z Fanatic
Join Date: Nov 2008
Location: Edmonton, Alberta ...eh
Posts: 1,171
Drives: 2017 Touring auto
Rep Power: 20 ![]() ![]() ![]() ![]() ![]() |
It would help if you data logged via UpRev so that you can determine what your MAF is reading , timing adjustments, as well as what your A/F ratio is reading. Two things come to mind; one that a coupling is leaking and a less restrictive exhaust or even a major exhaust leak could be the cause. But a 100 HP loss is staggering and I would expect something else related to the A/F ratio. First things is to datalog, as the data will always show the problem.
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