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extreme bogging

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DSM_HANZ

Probationary Member
9
0
Oct 27, 2010
kaukauna, Wisconsin
hi there,

my buddy has a 91 gst and once in a while when he driving it, it bogs really bad.

he would put it into 3rd (30 mph) and floor it and it would build rpms very slowly.
when he does this it says its boosting 8psi on a after market boost gauge.

now, him and i put a new turbo (16g). to try and get rid of the problem, he wired in a new o2 plug in because the old one looked really, and we also put in a new o2 sensor.

we started it up last night and it seems to be flooding. it wont rev passed 2.5k and his wideband is reading 13-14 afr at idle and 10ish under load.

we tried a new coil also.

anyone know what this could be?
 
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