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whats wrong with my MAF sensor!!!!


dugga4life

Well-Known Member
Joined
Sep 15, 2010
Messages
50
City
Otsego, MI
Vehicle Year
1994
Transmission
Manual
hey guys i need some help on this one.... i have a 94 ranger 4.0 manual trans, with OBD1...... and i just put a MAF sensor in it and when i unplug it with it running it runs no different and when you give it gas it revs like normal , and dosent throw a code either. it has been running rough and lost alot of power. does anyone know about this problem?
 
Last edited:
Check the resistance of the MAF. Wouldn't be the first one I pull out of the box already broken.
 
Yes disconnect the batt for 1/2 an hour and then run the KOEO test and when it starts giving you codes end the test to erase the memory, then run it at medium speeds for at least 20 mins and then check the codes. KOER while it is still up to temp. If you disconnect a sensor or change/clean a sensor you need to reset the computer so it can set the new values on the first complete warm up. It is also good to erase the memory when you reset the computer so your not trying to fix false codes.
 

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