My 2001 neon 4cyl. is throwing a p1391 and a p0351 code what is that

What the P0351 code means The P0351 DTC is seen when the ignition coil A primary or secondary circuit has a malfunction. The engine control module is looking for specific signals from the ignition coil A and when these signals are not seen the ECU sets the Check Engine Light. The Check Engine Light will be illuminated on the dashboard when you switch over to the msd your ecu doesnt recognize it and adding the tach adapter wont solve need the ecu programmed or adapter harness so the ecu recognizes the msd ignition

ok did you check the coolant temp sensor?bay be the computer is getting the wrong massage so the wrong amount of fuel goes to the injectors,so try changing the coolant temp sensor for the computer

For some reason you question has been duplicated several times, so I will answer this one.
Code 1391 may be a problem with the ABS system, the other three codes are concerning the first 3 coils. Your engine has direct spark so each cylinder has its own coil.
I would clear the codes and see which ones come back after a test drive. If the three coil codes come back the coils would need to be tested.

Kevin, can you give me a little more to work with? I would like year, make and model of your vehicle along with any other symtoms you may have experienced. Please get back to me with this information, and don't start replacing parts that you may not need. Waiting on your response.

The code is the Cam Sensor and or The Crank Sensor.The problem with dodge is the computer does not recognize which sensor it is it is one or the other it is easier just to replace both not that exspensive about $80 - $100 for both and easy to change.Avoid the hassle and change both because the other one will go shortly after anyways.

P1391 - Not a valid obd code.
B1391 - Oil Level Switch Circuit Failure
C1391 - Not a valid obd code.
U1391 - Not a valid obd code.
Its possible you may have misread this code. If it is B1391 that would be the only code with 1391 for your vehicle.

P0351 - Ignition Coil A Primary / Secondary Circuit Malfunction. The ignition signal from the Powertrain Control Module or Electronic Control Module is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM

P0352 - Ignition Coil B Primary / Secondary Circuit Malfunction.
Same repair info as P0351.

P0353 - Ignition Coil C Primary / Secondary Circuit Malfunction.
Same repair info as P0351



Solutions:
- If damage, repair ignition coil circuit
- Replaced ignition coil
- Replaced PCM or ECM

The codes you mention 301-302-303 are all misfire in the respective cylinders. you should replace the coil, while you are at it also verify the condition od the sparkplugs.

Have it current ramped tested . Could be the coil driver (transistor ) inside thePCM - engine computer . Look on youtube testing computer driver .

Part 2 Diagnosing P2305 P0352 P0351 and P0300 Faulty PCM Chrysler How To Diagnose Check Engine Light Codes P2305 P0352 P0351 P0300

The code p1391 is telling you that your ckp/cmp sensor signal is lost. What it is saying in normal terms is that the (crankshaft position sensor and the camshaft position sensor) are not sending a signal from time to time. That is why the car cuts out and will not start. First thing is to look at both sensors and check the wireing to each for any damage. The ckp is located on the front of motor on bottom side. The cmp sensor is located on the back of engine near the top. You have either one or both sensors that are not giving a signal to the pcm (power control module ). Hope this will help.

Sounds like cam sensor faulty or not installed properly, or moved. Make sure it's tight (snug) , remove connector & clean with electrical or contact cleaner, disconnect battery for a minute or so, then reconnect & see if code returns.If it returns, have free scan done at autozone, or Pepe Boys to confirm same code, and if so, I'd replace cam sensor.