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Motor will not rev... just boggs down

(2000 Kia Sephia)
in Owingsville, KY on March 14, 2011
Had this problem before changing motor. Opted to change motor due to other problems with rings & cylinder damage. Changed motor and all sensors on the motor and intake manifold. Did not change MAF, IAT, O2... Fuel pressure on fuel rail stays in specs at idle or throttled. Wondering if I just happened to get a hold of another bad TPS sensor to go with the one I might already have. Any ideas?
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Popular Answer
on March 15, 2011
sounds like a clogged cat converter. get the fuel pressure checked for proper pressure.

Roy
on March 10, 2012
most ap to be a coil braking down
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