1996 Chevrolet K1500 5.7 auto. Stumbles only under load. Idles,starts fine, will only gently accelerate with light pedal, engine loses power when medium or heavy accelerator pedal action only when in gear,. New coil, plugs, wires fuel pump, screen and filter. had misfire code 0300 and TCU code 0700 and an undefined code of 1192. Has o2 codes 0157,0151,0137,0131. cleared codes and only 0700 and 1192 stored.
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ALUMINUM V8 CAMAROS HAVE 3 PROBLEMS
1 VACCUUM LEAKS ie HOSE TO THE pcv deteriorates
2 MASS AIR FLOW / hard to diagnos sometimes
3 COLLANT temp sensor, ie starts fine cold, crappy when warm
Since you changed the sensor we will assume it is working. When you disconnect it you put the computer in limp mode which stops it from using sensor values. If code 300 is the only code we will assume the coolant temp sensor and others are ok. I would check fuel pressure with a gauge next.
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