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Q: I changed engines in our 03 intrepid and then it will not start p0057 code on 2003 Dodge Intrepid

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
first it was a crankshaft sensor code and changed it but now still won't start and have a p0057 code still won't start
no the engine is an 01 and had to change a whole bunch of things like the whole wiring harness for the engine and the knock sensor, crank sensor,cam sensor upper intake and so on. I read somewhere today that i may have to change the gear on the cam that the cam sensor reads. Have you heard of this?
POO57 = O2 sensor heater circit, not your no start problem! Do you have ignition spark and fuel to the plugs?
yes and evry once in a while it backfires like it is out of time so thats why i was wondering if you have ever heard of having to chance the readout wheel on the cam. but it has the transmission and the engine that were together in the 01
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