code 31

[maitai69691]

cars haveing some problems its like my maf is disconected.the only code im geting is a code 31 air flow meter signal.So i cleaned it out with maf cleaner and nothing.Next i reset the ECU then let it idle for like 3-5 min tryed to do the codes again but all the cheack ENG light jsut keeps blinking and dosent stop what is this mean. And could my trouble jsut be the MAF.

 

[87CandyBlueT]

cars haveing some problems its like my maf is disconected.the only code im geting is a code 31 air flow meter signal.So i cleaned it out with maf cleaner and nothing.Next i reset the ECU then let it idle for like 3-5 min tryed to do the codes again but all the cheack ENG light jsut keeps blinking and dosent stop what is this mean. And could my trouble jsut be the MAF.

First of all the 7m does not have a MAF. It has an AFM (Air Flow Meter) which code your ecu has thrown. Remove the AFM from your car. Test the terminals of the AFM electronics with an ohm meter to the specs listed in the TSRM or haynes manuals etc. If the resistance is out of spec. replace the black electronic box on the AFM. Remove the 15A EFI fuse for several seconds and put it back in and your car should idle fine.

:Edit: Oh and never try and clean your AFM with anything not even cleaners which say they will not hurt them. If you sprayed it with AFM cleaner then chances are your electronics are junk.

 

[iamshawn]

MAF cleaner will kill your AFM.

 

[maitai69691]

hey thanks for the help i did the ohm test and got like 1827-1819 ohms from what i can tell in the tsrm its with in specs. but not sure if i should have resistance betwen all the terminals because i was geting the reading only at a couple terminals not all. but ill go try it again.

 

[maitai69691]

my bad jsut looked at how to do it again from what it looks like i only test THA-E2 terminal.

 

[maitai69691]

i also forgot when i took off the intk pipe there was oil in it thought it was bad Turbo seals but no it was some oil readue coming from the two hoses off the valve covers that go back in to the intake.So i think it might have killed my AFM. Will a lex AFM mack any differance if im runing a f-con and FCD.