[panteraozz]

doesn anybody know of a way to test to see if your maf sensor is working properly assuming everithing else is functioning properly. There seems not to be a good explanation on this issue, many similars but I havent been able to find the right one. I keep getting code 66 when I pull the codes on my car. 5.0L 91 LX bone stock. any help would be apreciated thanks.

 

[Masshole]

66-sensor voltage too low. How is your car running? If its fine, I wouldnt be overly concerned. Maybe try cleaning off your sensors with a lint free rag sprayed with some brake fluid..or maybe buy/clean your air filter. Could there be a loose wire from your sensor to the car's computer?

 

[EagleAutosports]

These two should help you test it on your own.

 

[Masshole]

What a great post...tx eagle.

 

[blown347ranger]

ive been having the same problem with my 93 notch for several months now. mine is an intermittent problom. ive changed meters and still get the same code. i suspect a wiring issue. havent had time to fix it.

 

[ruthless351]

Tap on the meter when the car is idling. If it stumbles or anything replace it.

 

[STINGREY]

if the sensor was not operating correctly it would trigger the check engine light.

 

[panteraozz]

I do get a check engine light on and off all day, but mostly in the morning on my way to work (cold) . and thanks to all of you guys for helping out. :bigthumbsup

 

[EagleAutosports]

Good luck with it.

 

[panteraozz]

These two should help you test it on your own.

so... when you do the last maf electrical test which is the maf sensor voltage do you test the "maf signal" or "maf return" wire., because I get a very different value on each of them. Everything else check ok.

 

[EagleAutosports]

You'd check the MAF SIG.

 

[blown347ranger]

did you ever get your code 66 problem fixed