4runneracerunner
New member
Help!! Can't firgure out how to fix Code 31!!
i have a 1995 4runner 3.0 and the check engine light has came on and its code 31. and before this light has came on, it was running rich and had rough idle.
just fix that, and now code 31 has been thrown, i toke off my tps and tested it and it was bad, and so i replaced it.
but now that iv replaced the tps, it has a boucning idle, and back fire when i put my foot on the gas, and yes i did adjust it right. and after it warms up, the back firing goes alway?
i need help, i need help trying to fix code 31 on my truck and help why its back firing.
ive looked it up and it says on the MAF wiring is bad, i replaced that, and the hardness, and cleaned the butterfly.
need help asap. thank you
i have a 1995 4runner 3.0 and the check engine light has came on and its code 31. and before this light has came on, it was running rich and had rough idle.
just fix that, and now code 31 has been thrown, i toke off my tps and tested it and it was bad, and so i replaced it.
but now that iv replaced the tps, it has a boucning idle, and back fire when i put my foot on the gas, and yes i did adjust it right. and after it warms up, the back firing goes alway?
i need help, i need help trying to fix code 31 on my truck and help why its back firing.
ive looked it up and it says on the MAF wiring is bad, i replaced that, and the hardness, and cleaned the butterfly.
need help asap. thank you
Last edited: