2000 Ford Explorer 4.0 SOHC 2WD Codes p0171 P0174 | Ford Explorer Forums

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2000 Ford Explorer 4.0 SOHC 2WD Codes p0171 P0174

Adam You

Member
Joined
September 7, 2018
Messages
13
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0
City, State
Modesto, CA
Year, Model & Trim Level
2000 Ford Explorer
After changing the intake manifold and valve cover gaskets my car has encountered some issues.
The code reader says
" Fuel trim means ECU to control decreasing injector opening time..... Mass ratio of air to gas 14.7:1 Too rich A/F
Too much fuel supply while too lean means too little fuel supply.

I've checked and replaced every vacuum hose. If I leave my car idling in park its rough and after a few minutes it dies. Also when I give the car gas I hear my Cadillac converter rattle like it has rocks or something in it. Any ideas or suggestions please!! I've been dealing with this for a month now.
 






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