badge49
Well-Known Member
- Joined
- September 8, 2005
- Messages
- 567
- Reaction score
- 1
- City, State
- Humboldt, CA
- Year, Model & Trim Level
- '97 XLT 4X4
My truck constantly (for months) shows the warning "fuel cap" light. I scanned code P1506 with the OBDII and it says: "Manf Cntrl Veh. Spd. Idle Speed Control Auxiliary Inputs." My truck idles fine, very evenly, and I don't think I have any vacuume leaks. The only real problem is the darn orange light on my dash!
From what I found by searching the forum, most people seem to clean or replace their IAC valve, but it seems most people still retain the same problem code. Has anyone found a sure-fire solution to this problem code, or what sets off my "fuel cap" light? When I clear the code, the light goes away.:navajo:
From what I found by searching the forum, most people seem to clean or replace their IAC valve, but it seems most people still retain the same problem code. Has anyone found a sure-fire solution to this problem code, or what sets off my "fuel cap" light? When I clear the code, the light goes away.:navajo:
