Robert
Explorer Addict
- Joined
- October 26, 1999
- Messages
- 3,948
- Reaction score
- 4
- Location
- CA
- City, State
- Kelseyville, CA
- Year, Model & Trim Level
- '13 Ram 1500 Longhorn
It depends. When certain codes are cleared, it will clear your CEL immediately. Others require a certain number of Complete Drive Cycles to be completed before it will clear your CEL. A complete drive cycle for the most part is starting your vehicle after it hasn't been driven for 6-8 hours, your coolant temperature is below a certain value, you drive a certain number of miles in city and then a certain number of miles on the highway. Your manual will tell you what the actual requirements are. If fixing the IAT requires several successful drive cycles before clearing then you will have to meet the requirements, clear the CEL with a scanner or disconnect your battery for a few minutes. If you clear the light and then it comes back on then the problem is still there. I know when I've disconnected my IAC connector while my engine was running, I forced a CEL. As soon as I plugged it back in and restared my Explorer the light was out. I haven't tried it with the IAT sensor though. If I remember to try it tomorrow I'll give it a try and let you know what I find.