code po100 maf or vaf circuit malfunction? - Toyota Tundra Forums : Tundra Solutions Forum

david3565 · #1 (**permalink**) 02-24-2009, 09:32 PM

installed dvd blew domelight fuse. started car and check engine vsc trak and vsc off lights are on. pulled codes get P0100 maf or vaf circuit malfunction. what do you think? please help 2002 sequoia sr5 4x4

JBH1989 · #2 (**permalink**) 02-25-2009, 01:23 AM

check the two efi fuses

then use the scan tool to read the MAF value Key on Engine off. Then start and compare.

Should be 0 gm/s off, then less than 10 at warm idle

david3565 · #3 (**permalink**) 02-25-2009, 10:06 AM

thank you soooo much. now i can leave for fla friday for disneyworld. as it turns out, after i blew the fuse to the domelight, my buddy pulled it and said it was bad and said there were spares in the box and laid a spare out for me when i get finished with the install. what he didnt tell me is he pulled EFI 2 fuse out thinking it was a spare. i checked it this morning as you suggested and noticed there wasnt a fuse there at all. replaced it with a real spare and cleared the codes CE light goes out but VSC OFF and VSC TRAK stay on. had to cycle off ignition 1 more time and those lights went out as well. thank you very much, now pray for safe trip and good time.