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‘Dead spot’ at WOT from 4500-6200 RPM
Recently I have been experiencing a lack of power at WOT from 4500-6200 RPM.
It feels like the Variocam is kicking in 1700 rpm later than it should.
Based on the codes I suspect this is a vacuum leak, but wanted to check with the wisdom on this forum.
Codes:
P1124 oxygen sensing adaptation range 1 (cyls. 1-3) at enrichment limit
P1126 oxygen sensing adaptation range 1 (cyls. 4-6) at enrichment limit
P1128 Oxygen Sensing Adaptation Area 2 (cyls. 1-3) - Rich Threshold
P1130 Oxygen Sensing Adaptation Area 2 (cyls. 4-6) - Rich Threshold
Camshaft deviation is 0 for bank 1 and -3 for bank 2
1998 Boxster 5 speed/2.5L
56k miles
Car has test pipes (track)
Should I go chase down a vacuum leak or start elsewhere?
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98 Arena Red 986
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Threaded Mode
