Check engine light on?

[hodocka]

I have a '05 Dodge Ram 4.7, It has 32k miles. I bought it used in 7/07 with 24K miles on it. Month and 1/2 ago, the check engine light came on. It was almost time for oil change. After I changed the oil it didn't come back on. Last week the light came back on. I'm still 1000 miles away from next oil change. I do have the K&N air intack system I installed in 8/07. Any suggestions appreciated.

[crazys182003]

take it to a local auto zone or advance auto parts and have them read the code and post back. We can help you better with the actual code that is being thrown.

[fanworks]

Does the On-Off-On-Off-On trick work on those newer trucks? The first gens, that method would make it blink the codes being thrown with the check engine light.

[HEMIDAZE]

First off, a check engine light does not mean you need an oil change. Take it to autozone and have the code read. The on, off, on works but you get a digital read out of the code on the odometer.

OBTAINING DTC'S USING IGNITION KEY

1. Cycle the ignition key ON - OFF - ON - OFF - ON within 5 seconds .
2. The odometer will show the P-code for the DTC code number. Refer to the DTC chart for a detailed explanation of the DTC codes.
3. If no DTC's are present, the cluster will display one of two texts: "P1684" and "done" or only "done".
   • "P1684" is only a status and indicates that the PCM memory has been cleared within the last 50 ignition cycles and does not indicate a problem.
   • "done" indicates that NO DTCs are present and the procedure is complete.