mass air codes?
11-29-2001, 10:27 AM
#1
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mass air codes?
Does anybody now where to start looking for problems when your car lists two codes for the mass air flow sensor. one is for over-current, the other is for under-current. if i reset the computer it will take a while to come back but it does. also it will sometimes not set a trouble light at certain times when the car is started. i have had the mass air flow sensor tested and it tested good. i have also replace the relay for the maf. any help on what to do now would be greatly appreciated.
11-29-2001, 10:49 AM
#2
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Welcome to thirdgen.org.
There's two MAF relays...burnoff and power, either could cause an issue, also a bad MAF as well. It's also been learned that too high a TPS voltage can cause a MAF code too. Check/set the TPS at idle to .54vDC+/- .08 first, then look into the MAF relays/circuits.
There's two MAF relays...burnoff and power, either could cause an issue, also a bad MAF as well. It's also been learned that too high a TPS voltage can cause a MAF code too. Check/set the TPS at idle to .54vDC+/- .08 first, then look into the MAF relays/circuits.
11-29-2001, 01:02 PM
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i will try that, but, does anybody have any info on where the burnoff relay is located. to my knowledge the power relay is what i have already replaced. i believe that that are the same type relay. but i cannot get any definitive place where it is located...
thanks
thanks
11-29-2001, 01:12 PM
#4
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Should be right next to the powerrelay...on the firewall are 3 relays, MAF power, MAF burnoff and fuel pump, but could be in any order.
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