changed motor new motor back fires & lacks power on 1997 Dodge Caravan

I changed motor from a right off that ran great now it runs ruogh and back fires & pops. hear a intermintent click noise from tranny side that makes it pop & back fire. it realy lacks power. computer scan comes up p0118. used all sensors from right off van that ran good before.

by in Perkins, MI on October 01, 2009
2 answers
ANSWER by on October 01, 2009
This is a code for your engine coolant temp sensor, which can make an engine run very bad if it was broken or the wiring wasn't right. Is the radiator all topped off?
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ANSWER by on March 25, 2011
you either have it out of time or some wires crossed