Symptoms do not change with difference in ambient temp or cold start up. Whenever a load is put on engine (in gear with AC on) it seems to run better but not much. At stop I put in neutral and keep rpm up above normal idle (factory) speed of 1000 rpm. Performed wiggle test on most sensors and reseated all associated hoses and fittings with air intake system. Thinking of changing spark plugs again. As there are a lot of miles on the truck I am heading in the direction of MAF/Map or idle speed control sensor. I don't think it is related to throttle position sensor. I do not have a diagnosis tool.
have the same problem?
Sunday, September 11th, 2011 AT 3:39 PM