Question about 2001 Dodge Ram 1500 Truck 2WD
PO code 108, I changed the MAP sensor with no change, I have changed the IAC, with no change. Engine starts rough and the rpm goes from 500 to 2,000 while running very rich, after a minute or so the engine will actuall settle down and idle without running rich or pulsating in rpm. Any help please
If you don't find that vacuum leak,( which is a common cause too) look with a scan tool at the reading on reported intake air temperature sensor. It should be within 10 Deg of your ambient temperature.
An air temperature sensor fault can cause flooding/starving of the engine. Some of the ones I've seen will report temperatures over 50F higher than the normal air temperature and fluctuate rapidly. Such a jump really affects how the computer calculates the mixture.
hope that helps some...
Posted on Jan 13, 2009
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Posted on Jan 02, 2017
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