toyota code p0171:fuel system too lean

p0171:95% caused by bad air flow meter located on the air box .
Check your air filter first change it if dirty or if you have a k/n filter on get rid of it and return your vehicle to stock.
Do not try to clean it.clear codes and you should be ok

fuel problem with 03 to 05 dodge diesel trucks with p0628

p0628:low voltage detected at fuel transfer pump.
p0628 is caused by a faulty transfer pump mounted on a 5.9 L diesel engines.
You will need a transfer pump conversion kit a 400 dollar part.
Make sure to follow instruction that came with your kit very important.
Remove the old transfer pump and install the new adapter in place.
Lower fuel tank and remove the sending unit assembly and install the new fuel pump assembly.
Install wiring harness.
Replace the fuel filter.
Clear code p0628 and you are good to go again.

how to repair a 2006 dodge charger with p1004 fault code

p1004 is a fault code caused by a faulty short runner actuator.
Actuator i located on intake manifold 3.5 L only first you will have to remove actuator and check intake manifold rod that sits behind it if that rod is free you will have to replace the actuator only if rod is hard to turn by hand then you will have to replace the whole manifold assembly.check for any service bulletins or any pcm flashes using the VIN number before replacing any parts.
In some cases actuator will not be available separately that's when you will buy a new 1600 dollar manifold with out any other choice.
Remember that every year is different than the previous year use the VIN good luck