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Old Mar 13, 2012 | 09:26 AM
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Default wide open throttle

I have a 2002 trans am ws6 automatic. I am having a problem when in w.o.t. it loses powerand noses over, quits pulling anyone know what could be wrong? Mods are alp lid,strait pipe no cats, o.2s have been deleted and 373s in rear.
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Old Mar 13, 2012 | 04:32 PM
  #2  
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Plenty of things it "could" be, and none of them especially
advanced.

If deleting your O2s was done dumb, you could still have
active closed loop but badly mis-trimmed, and when you
add that to factory pig rich and then lay down some
COT enrichment, that would be a fat soggy mess. Have
a chase vehicle let you know what's coming out the back
when things go south.

Overgapped plugs can work fine at part throttle and
blow out at WOT.

Fuel filter is likely due for changing, and would give
you a WOT lean condition with maybe some knock
retard.

Scanning is wanted.

I think this belongs elsewhere. I'm picking General
Maintenance.
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Old Mar 13, 2012 | 06:28 PM
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I'll guess Fuel filter or plugs.

And by "o2's deleted" do you meant he rear cat-check sensors? The rear two are for cat-check and the front two are A/F monitoring.
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Old Mar 13, 2012 | 06:31 PM
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Clean the MAF. It could be bad too....

.
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Old Mar 28, 2012 | 08:37 AM
  #5  
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Would not hurt to check the valve springs either. Depending on the mileage it could start floating the valves.
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