Crank but no start throwing 5 codes a po191
po420 po451 p2196 an p2 198 fuel pump sounds week put is still pumping I don't think the o2 codes would stop it from firing so it fuel issue plz help

 

Measure pressure.

 

You should take a look at
for video on replacing fuel rail pressure sensor.

I my case I replaced the fuel rail pressure sensor on my 2007 F-150 4.6L 4x4 STXRead information directly from existing Fuel Pressure Sensor mounted on fuel rail “Bosch, 0261230093, 3F2E-9G756-AD, >PA66-GF30<”.

Ordered Fuel Pressure Sensor with description given as follows: Bosch, 0261230093, OEM Part #3F2Z-9G756-AC (seller states “part number on sensor is 3F2E-9G756-AD” and this matches my existing part number). Total cost $39.70.

Replaced and cleared code

 

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