Chrysler Repair: code p0203: 2,5L V-6, postal mail, wire colors

Question
i have a 1997 conv. sebring and i can start it and it will idle. but when i put it in gear it will not go. like it skipping or not get the gas.

Answer
Hi James,
The cause of the P0203 is that the wire that supplies the signal to fire the injector on the #3 cylinder is not making a clean connection between the engine controller and the injector plug. There is a 4-pin plug that connects the wires from the ASD relay to the injectors and back to engine control module. If you have an ohmmeter you can measure whether the wire from the ASD to the injector and back to the ecm is either open or shorted to ground. I can xerox copy and postal mail you a couple of pages from the powertrain service manual that describes the testing procedure. Use the "thank/rate" tab to get back to me with a postal mailing address without having to wait for me to be available to take a question.
In the meantime look at the plug connection and the condition of the wires on either side of the connection to see if you can find any place where the insulation has rubbed through or an entire wire broken. The wires of interest are dark green/orange and yellow/white.
Roland

Hi James,
I don't have a fax machine so can't send you a fax without cost.
If you locate the connector near the fuel rail on the side of the engine closer to the fire wall you will notice that you can id the wire colors on the side coming from the ecm as to which pin has which wire. The reading between the injector-side plug pins of the wires in question should be 10 to 16 ohms. On the ecm-side of the plug, the resistance should be near 0 ohms to the ASD relay output pin (the inboard-most pin of the ASD which is located at the very rear of the power distribution box under the hood, hidden by the air intake rubber tube) and to pin 7 of the ecm plug, respectively for the two wires listed in the original message. Neither of the wires should show a short to ground. You should also see the voltage pulse between 12 and 0V on the yellow/white wire when the engine is idling. That is essentially what the pages say.