1986 Toyota 4runner trouble

Asked by Guru52L4C Feb 02, 2018 at 10:34 AM about the 1986 Toyota 4Runner 2 Dr SR5

Question type: Maintenance & Repair

I have a 1986 Toyota 4runner it is having trouble
starting and staying running poor idle it has good
spark  fresh tune up it's not the mass airflow
sensor it's not the fuel pump or the fuel filter none
of the relays or wires, battery, fuses, the truck
pretty much won't start it will just crank and not
fire pretty much any ideas or a good old Toyota
mechanic near Youngstown OH it's the 22're motor

3 Answers
35

4RunnerGeo answered 6 years ago

check the EFI, then check the sensors for the catalytic converter. Should be one before and one after the catalytic converter. Also check the compression and fuel injectors. Not necessarily in that order.

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30

Cody answered 6 years ago

Have you checked the circuit opening relay that is behind the dash just above the computer? I had the same problem in my toyota pickup with the same motor and it turned out to be that relay after I replace the pump, filters, fuel pressure regulator, and injectors.

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