99 Ram Low Idle & Stalls

[RangerRay]

So my 99 Ram 1500 with the 3.9 is having some idle issues. When you first start it you have to give it a little gas or it'll die. After it runs for a bit I can take my foot off the gas it'll run just fine. I've replaced the idle air control valve, tps, and went ahead and replaced the throttle body gasket and no help. Now before I replaced the iacv it idled way too high. After I replaced that it now idles too low. Its also throwing a check engine code P0505 which is idle air control system. Any suggestions on what it could be would be greatly appreciated.

 

[Stegs]

So my 99 Ram 1500 with the 3.9 is having some idle issues. When you first start it you have to give it a little gas or it'll die. After it runs for a bit I can take my foot off the gas it'll run just fine. I've replaced the idle air control valve, tps, and went ahead and replaced the throttle body gasket and no help. Now before I replaced the iacv it idled way too high. After I replaced that it now idles too low. Its also throwing a check engine code P0505 which is idle air control system. Any suggestions on what it could be would be greatly appreciated.

well the code will tell you to start looking

if you were messing in that area, check for vac leaks, might be a bad sensor

 

[Merc225hp]

Did you reset the pcm when you did this work? Disconnect the neg side of the batt for 10min then hook it back up and see what happens.