Po205 cylinder circuit open

Well you either have a defective injector connector or wiring to it or the injector coil is an open circuit. Swap the injector to a different cylinder and see if that cylinder triggers a code or the code is still for cylinder #2, if triggers a new code the injector is defective, if the same code comes back after being cleared then you have either a bad injector connector or the wires from the PCM are open somewhere. You really need a full function scanner to make this job much easier.

"circuit open" means that the entire circuit, from the computer to the injector isn't making good connection. You will need to trace the wire all the way and find the break in the wire.

P0452 means fuel tank pressure sensor circuit low pressure. Possible symptoms:
- Fuel Tank Pressure Sensor harness is open or shorted
- Fuel Tank Pressure Sensor circuit poor electrical connection
- Faulty Fuel Tank Pressure Sensor
The code 0305 means cylinder 5 misfire detected. Possible symptoms:
- Faulty spark plug 5
- Clogged or faulty fuel injector 5
- Faulty ignition coil 5
- Fuel injector 5 harness is open or shorted
- Fuel injector 5 circuit poor electrical connection
- Ignition coil 5 harness is open or shorted
- Ignition coil 5 circuit poor electrical connection
- Insufficient cylinder 5 compression
- Incorrect fuel pressure
- Intake air leak

Read more: http://engine-codes.com/p0305_pontiac.html#ixzz2d8l8VHWe
Read more: http://engine-codes.com/p0452_pontiac.html#ixzz2d8kXRa8w

P0304 Cylinder No 4 is misfiring (Spark Plug)
P1240 means you have a Fuel Injector problem on Cylinder No4 - Open Circuit, Check the plug on the injector

P0725 Engine Speed RPM Sensor mat be faulty

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Trouble Code: P0205

Injector 1, 2, 3, 4, 5, or 6 Control
Possible Causes:


ASD relay output circuit failure. Fuel injector has malfunctioned or failed. Fuel injector control circuit is open or shorted to ground. PCM has failed.Here is the code from the Dodge repair guide..

P0261 Cylinder I Injector Circuit Low P0270 Cylinder 4 Injector Circuit Low P0273 Cylinder 5 Injector Circuit Low P0276 Cylinder 6 Injector Circuit Low P0279 Cylinder 7 Injector Circuit Low this will hold true for each code you listed SymptomsPossible sumptoms of OBD code P0279
- Engine Light ON (or Service Engine Soon Warning Light) - Engine Misfire - Engine Run Rough - Low MPG CausesPossible causes of OBD code P0279
- Fuel Injector #7 - Faulty or Corroded Fuel Injector #7 Connector - Plugged #7 Fuel Injector - Dirty #7 Fuel Injector Possible Solutions- Clean Fuel Injector #7 Connector - Clean Fuel Injector #7 - Replaced Fuel Injector

CODE PO205 - IS INJECTOR 5. YOU NEED TO USE FUEL INJECTOR NOID TEST LIGHT OR A STETHOSCOPE TO CHECK ALL FUEL INJECTORS TO SEE OR HEAR WHAT FUEL INJECTOR NOT WORKING.USE TEST LIGHT IF BLINKS FUEL INJECTOR GETTING POWER.THE STETHOSCOPE USE IT LIKE A DOCTOR TO HEAR WHAT FUEL INJECTORS WORKING.YOU SHOULD HEAR CLICKING NOISE IF YOU HEAR NO INJECTOR NOISE AND IT IS GETTING POWER.THE FUEL INJECTOR IS FAULTY.

injector circuit malfunction cylinder #5

po123-tps curcuit high---po138-02 sensor high volts bank 1 sensor 2,--po205--injector curcuit open cylinder 5,---po305-- misfire cylinder 5,--po300 random/multible mis fire,

Hi. Injector circuit open, it's mean, The injector is disconnected.
check the connector for that injector, loose or broken click.