Having problems with your 1998 Toyota 4Runner ?

1998 toyota 4runner #2 cylender misfire

\015 #2 cylender misfire 3.4 v6 replaced plugs, wires, feul filter: no diference. has good spark. switched #2 injector with the one directly next to it. no diference. switched coil pack with the one next to it. no diference. checked timing belt, looks good, timing marks all line up nice. has 150 psi in all cylenders. am stumped at this point ........\015 Posted / edited by AnonymousUser on : 17-09-2018

Answers :

You might want to look for a vacuum leak on the intake manifold. You also might need to hook up a scope and measure injector duty cycle and compare it with a good cylinder. Also check wiring for chaffing going to the injectors and coil pack. I can provide you with pin out on ECM if you need.
Repair Help & Product Troubleshooting for 1998 Toyota 4Runner

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