On my 94 exp with 4.0L engine, the check engine light came on, & I have the code 157, MAF voltage low. Having access to a breakout box, I directly measured the voltage from the MAF sensor & it was below spec. Do you think cleaning the sensor filaments will get the voltage signal back to specs. If I have to replace the sensor, how does Ford sell them? The sensor itself or the entire air horn assy. What is the typical Ford price for a MAF sensor? Finally, I'm also occasionally getting a code 998 which means hard fault. What is a hard fault? I know this is pretty technical, maybe a Ford tech cruises this site.
Thanks, FJK
Thanks, FJK