Does anyone have the code book or no what these are thanks

 

What year and engine size is your vehicle?

P1201-- injector circuit open/shorted on cylinder 1

PO351-- ignition coil A primary/secondary circuit malufuction

PO420-- cat efficiency code

 

2000 durango 5.9 i was driving down the road and it back fired and died now it has no power to the coil I thought crank or cam sensor but what do you think?

 

tested the cam sensor it is good tested the crank sensor test bad so i whent and got one but omg it is a bitch to see let alone get to not sure how iam going to get to it and i have done some ****ed up things there is 2 bolts in the back of the passenger head that do nothing but are in the way of getting the 2 that hold the sensor in

 

Replaced the crank sensor still nothing so re checked everything come to find out the coil was swollen and broke lesson learned use a better meter my fluke broke and bought a craftsman its **** used dads fluke so the $70 crank sensor was pointless