Tried switching injectors reflashed PCM spark plugs but still p0301 comes back, car runs good

Make sure battery has a full charge and battery connections all good. I don't know what testing you have done? Engine cranking, do you have spark at the plugs-- proper fuel pressure-- and fuel injector pulse?
The 70700, I don't know? I did look at p0700, that has to do with transaxle. The p1793 caught my attention, that is for ignition switch run position issue. I'd probably do a voltage drop test at the ignition switch, compare voltage to ignition switch against voltage from ignition switch, run position. Just my opinion.

p0301 is Cylinder 1 Misfire. Check fuel injector,Spark plug, plug wire, ignition coil.

p0326 is the Knock sensor (Combined with above code I'd check the fuel injector on #1 cylinder)

P0301 - Cylinder 1 misfire detected........P0302 - Cylinder 2 misfire deteced, and so on........so either it is a current misfire, which you would be running on 4 cylinders instead of 3, or it is an intermittent problem.......i will provide some possiblities,,,
- ignition system (spark plugs, leads, coil packs)
- fuel system (injectors, ecu etc)
- running out of fuel
- low compression

Basically, if your vehciel has not had service for a while, change the spark plugs, and engine oil, and give her some loving, tender care....

However, if it is regularly servicedm there might be a bigger problem.....

More info required to help you.

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PCM data configuration error you can pick up an OBD reader from most pats stors for about 50 dollars and reset it but if it continues to come back on you may have to replace the computer (PCM)

P0301 IS A MISSFIRE CODE FOR # 1 CYLINDER
IT COULD BE SPARK PLUG, STOPPED UP FUEL INJECTOR, COIL ( IF COIL ON PLUG TYPE ), OR PLUG WIRE . COULD ALSO BE A BASE ENGINE PROBLEM VALVE , BROKE PISTON RINGS, ETC.

HOPE THIS HELPS

P0301-P0308....2T catalyst........2004-05 Ram...Cylinder 1-8 Misfire Detected Conditions: Any time engine is running and the adaptive numerator has been successfully updated. When more than 1.5% (300M, Magnum), 2% (Durango, Ram), 2.5% (Durango LEV, Ram LEV), misfire rate is measured during 2 trips, or with 10-30% misfire during 1 trip. 3 good trips required to turn off MIL. Possible Causes: ASD relay output 2 circuit fault Injector control 1 circuit fault Coil control 1 circuit fault Ignition wiring, spark plug, or ignition coil fault Fuel pump inlet strainer plugged Restricted fuel supply line Fuel pump module fault Fuel pressure leakdown fault Fuel injector is damaged or has failed Engine mechanical problems exist PCM has failed. Hope this helps you. Thank You for using fixya.If you like this solution please rate it....Thank You, iluv2fish....Ray

A P0301 code means that the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #1.

Symptoms may include:
· the engine may be harder to start
· the engine may stumble / stumble, and/or hesitate
· other symptoms may also be present

A code P0301 may mean that one or more of the following has happened:

· Faulty spark plug or wire
· Faulty coil (pack)
· Faulty oxygen sensor(s)
· Faulty fuel injector
· Burned exhaust valve
· Faulty catalytic converter(s)
· Running out of fuel
· Poor compression
· Defective computer

If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

check your heated 02 fuses. check your wiring for rubbed through insulation. also, lots of PCM issues and reflashes on these cars.

1. Freeze Powertrain Control Module (PCM) and see if the problem can be duplicated.

2. Wiggle tug test wiring for #2 injector.

3. Scope the #2 injector for a glitch when the misfire happens. 1. Test for the Exhaust Gas Recirculation (EGR)/coolant adapter gasket leaking EGR gases past the gasket.

2. Connect a vacuum pump to the MAP sensor, block the vacuum source, reset fuel trims, start the engine and add typical vacuum to the MAP sensor and check operation.

3. Test the spark output with 2 High Energy Ignition (HEI) testers, at 25 KV air gap each, at the spark plug wires to ground at wires 2 and 3, then 1 and 4 at cranking speed and engine running.

4. Test the fuel injector pulse width at the injectors compared to the scanner data.

5. Disconnect the O2 sensor, reset the fuel trims, test the system operation in open loop, test injector pulse width. Compare to the closed loop operation injector pulse width and engine operation.

6. Test the Powertrain Control Module (PCM) powers and grounds during the problem.