3vze code 71
#1
3vze code 71
So i was driving my truck and and it just died all of a sudden. I can turn it on but it only runs for about 2 seconds. If i mash the gas pedal i can get it to run longer but it still will eventually shut off. I checked the cel and got 7 blinks then 1 blink. The cel was on for a quite some time a while ago but i thought i had checked it and thought it had to do with a bad catalytic converter. but now it is giving me a different code. i don't know maybe i misread the code, i have no idea. it would store two codes at once right? i dont know, but anyways fsm says it is a EGR System Malfunction and gives me these probable causes. if you were in my shoes where would you start? -thanks
Open in EGR gas temp.
sensor circuit
Open in VSV circuit for EGR
EGR vacuum hose discon
nected, valve stuck
Clogged in EGR gas passage
ECM
Open in EGR gas temp.
sensor circuit
Open in VSV circuit for EGR
EGR vacuum hose discon
nected, valve stuck
Clogged in EGR gas passage
ECM
#4
#5
it only runs with both unplugged. if i plug in the vafm it will die. if i plug in the tps it will die. however i took cover off the vafm and increasingly turned the dial thing counter clockwise until i was able to plug the vafm and tps back in and have it continue running. i just have to hold the dial in a certain position to keep it running, as soon as i let go it dies.
Thread
Thread Starter
Forum
Replies
Last Post
22REFORME
86-95 Trucks & 4Runners
10
02-28-2020 07:23 PM
mytoyota86
86-95 Trucks & 4Runners
9
10-04-2011 05:43 PM
89whitetoyota
86-95 Trucks & 4Runners
6
07-19-2010 08:51 AM