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Old 01-23-2009, 10:53 PM   #1
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Default VAF check engine light on code number #2

hi, guyz check engine light came on my 89 mkiii. it give s me code #2 which is VAF(vane air flow) circuit. need help. thanks.
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Old 01-24-2009, 02:13 AM   #2
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This is incorrect. All codes are two digit. The base diagnosis code is 12. Try again, and post the code for help.
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Old 01-24-2009, 02:51 AM   #3
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Default vaf

hey bro no offence but there is a code #2 and it is vaf circuit. and the one u r talking abaut code 12 which is etc sensor problem. thanks but i will recheck it again.
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Old 01-24-2009, 11:22 AM   #4
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I double checked on the http://www.toyota-supra.info/forums/mkiii-supra/9950-tsrm.html , and your correct about the code 12, except it is an 'RPM Signal malfunction'. However, all codes are still two digit. If you believe the problem is the 'Vane Air Flow Circuit', this must be with the air flow meter, which is a vane style meter. Check the connections, and check the meter box itself to make sure the problem is not internal to the sensors in the meter. Next, you'll need to check for continuity in the lines to the ECM.
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Old 01-24-2009, 02:50 PM   #5
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Busted knuckles is right...

Im not sure where you got the vaf circuit from.

Go here then here
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Old 01-26-2009, 02:47 AM   #6
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Default ma bad guyz and thanks for ur guyz help.

ya i checked the manual i have its says code #2 but any ways i already fixed it check engine light is gone. it is true that code 12 is related to rpm but thats what my manual says about code #2. But new problem came out the light came on which is left to door signal light above the check engine light. finally just for your guyz info i am a vw guy so i dont know much about toyota.
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Old 01-26-2009, 08:54 AM   #7
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Cant remember off hand if this light is in that spot, but if it has a pic of a car with little lines coming out the back side of it that means you have a rear light that is out.
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