Intermitent cel

[KIMO4]

I have 92 mazda Navajo 4.0L 4x4 that will not pass emisions in the great state of Pa. .
Been getting intermittent CEL. Read dtc as follows KOEO 111, CM 171, 173,& 179. KEOER TEST SCANNER WILL NOT MOVE FROM RECIEVING CODES DISPLAY DOES ANYONE KNOW WHATS GOING ON?
SCANNER IS INNOVA 3140

 

[Tbars4]

...The odd's are you have a dirty MAF...

...Other possible issue's can be found in post #2 of this thread...
http://www.explorerforum.com/forums/showthread.php?t=252015

 

[KIMO4]

I have cleaned maf 2x no change. Will change oil and check for exhaust leak befor O2 sen.

 

[Tbars4]

...All of those things in the thread I posted are possible causes...

...You might also do a search on here for MAF as there are some threads on how to test them too...