Check engine light flashes on and off around 70mph?

F

fcgodin11

New member
It comes on for a little while, flashing, and then just goes off. It's a 1999 Chrysler Sebring LXi.
When I run an OBD on it, it doesn't show anything.
 
check engine light has to be on at the time you check for codes if not you will never get an answer to that one.
 
check engine light has to be on at the time you check for codes if not you will never get an answer to that one.
 
This ca be caused by a dirty IDLE AIR CONTROL VALVE. It changes fuel mixture at various speeds. If it is dirty, the O2 sensors will over-react. Then trigger the system light. Buy can of Gum-out, and spray the throttle body SHOWROOM CLEAN. the IAC valve is part of this, or on the side of this. Remove it for best results. Clean your PCV valve and hose with the spray, too. Doing this with engine running will eventually get the cleaner to your O2 sensors and reset it/them. It will give your engine a slight "headache" for a minute or two. Good luck!!
 
check engine light has to be on at the time you check for codes if not you will never get an answer to that one.
 
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