2001 Ford Expedition Repair Question
Asked on November 14, 2011
Code P0174
I have this code that keeps coming on, I have replace fuel filter, spark plugs, cleaned MAF with electrical cleaner, replace air cleaner. I do know that the code represent there is to much air per fuel ratio on bank 2 side. I checked for leak on intake using carb cleaner.Is there anything else that maybe causing this code to come on? There is a slight performance issue.
Asked by bcmullen95Answer
Replied on November 14, 2011
but most common cause is vacuum leak from hose or fitting.
Replied on November 14, 2011
I am not thinking O2 as when scan tool is connected they are working with in specs. Tomorrow I will be searching for a leak in a hose. Is there a really good trick into finding a leak other that spraying carb cleaner?
Replied on November 14, 2011
smokers can blow smoke around parts and see if it gets sucked in.
Replied on November 14, 2011
I have a question in regards to finding out if the MAF is the actual problem. I was using my scan tool and the reading for MAF are 8.0 to about 8.13 gm/s. Is this a normal range for the MAF.
Replied on December 10, 2011
Check the MAF voltage when the engine is hot and idling. It should be between .6 and .9 volts. Zero volts key on, engine off.
