Question about 1997 Dodge Ram 1500 Club Cab
This is a problem with Air :gas mixture. The engine needs a correct air: gas ratio of 14.6:1 to run it efficiently. When this ratio is more then 14.6 it runs lean. When this ration less then 14.6 it runs rich. This is maintains by the ECM responsible for maintaining this ration. It takes feedback from the O2 sensor from the exhaust, and the Air Mass flow before the throttle body to make adjustment with the gas injected to the cylinders. When it runs lean it gives more gas. When it detects rich it gives less gas. Either one of these or both are not functioning correctly can give you this symptom. However when you said you ran OK after 20 minutes, that meant your Air Mass Flow is still working so it make ECM adjusted the gas input to get back to earlier stage. Therefore I conclude that you have a bad O2 sensor. Check this out.
Posted on Nov 14, 2009
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Posted on Jan 02, 2017
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