2003 Nissan Altima V6 Power Loss Driving Hills Recently Replaced Spark Plugs

2003 NISSAN ALTIMA
145,000 MILES
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WANTITFIXED
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My 2003 Altima V6 has power loss when driving up hills. I have recently replaced spark plugs, air filter, oil, oil filter, cam shaft sensors, cam solenoids and no change. The car will also start to burn oil after about a 1000 mi into an oil change. No codes are on the computer. Otherwise, the car drives fine.
Any ideas?
Dec 30, 2012 at 12:24 AM
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DRCRANKNWRENCH
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You could have intake or exhaust blockage. someti mes the catalytic converter wil fail internally and fall in on itself clogging the exhaust and the Altima has like 6 converters. The ones nearest the engine are most likely to fail.
To go over more possiblities I am giving you a diagnostic walk through. Just use the link below to get to it;

https://www.2carpros.com/articles/engine-has-low-power-output
Dec 30, 2012 at 12:31 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.