All sensors on the throttle body are new, tps, map sensor, iac, new fuel pump, new fuel filter. When you first start the truck whether it is hot or cold it idles up and down and will clear out instantly without notice. Sometimes it clears out immediately or a few seconds later. When it is doing the surge at idle you can lightly mist some carb cleaner over the throttle body and it runs perfect. When you unplug the map sensor it runs ok but smells rich. With the map unplugged it does not surge at idle and the truck runs well. When the map is plugged in it does the surging again.
May 22, 2008 at 3:48 PM
