Toyota 4runner efi fuse keeps blowing. Check the oxygen sensor near the cat converter. Here are some things to check. If you cant find the short just drive the truck at full throttle all the time.
As soon as everything is at temp and your not at 70 throttle pop goes your fuse because the computer sends juice to the o2. Many toyota owners have a problem with the electronic fuel injection efi fuse blowing repeatedly. Toyota 4runner forum largest 4runner forum toyota 4runner forum classic t4rs efi fuse keeps blowing.
Page 2 of 2 1. The wiring is long enough to sit on the pipe and melt shorting the power and blowing up the fuse. 2 the wires near the egr vacuum switching valve vsv located under the intake manifold.
Ive seen these end up on the exhust melt the wires together and blow the efi fuse. 1 the wires around the egr tube for melting or fraying. 09 28 2010 0953 am 16.
It keeps blowing efi fuses but only in the morning. Also my fuel gauge is not working right. 12 tank is at 34 gauge ect.
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