I placed a jumper in the service connector and I receved 3 long blinks followed by 7 short blinks from the light on the instrument panel. Can someone help me determine the problem. I have the 6 cylinder engine and it starts fine. After running for about 30 seconds the idle will change and go back and forth between 1500 rpms and 1750 rpms. It will go through this behavior no matter how long the car is running. I can't seem to get the engine to go into its normal ldel speed. The car has low mileage and I was away for a couple of months and when I returned I found that I had this proplem.