Toyota 4runner with a 3.4 with misfire between p0302 p0305

Question

I have a misfire codes p0300 p0305 p0302. done changed all coils and wires and plugs and injectors too. And moved coils too. Could it be in my timing belt? That's one thing I haven't checked yet. But I put a new timing belt on about 28.000 miles ago

Answer 1

Have your 4Runner had any other mechanical problems lately, like engine overheating?

Since you have already replaced most of the electrical components, your next step is to perform a compression test. That can give you a better idea of what the problem is.

Comments

It never over heated  it just started when I changed that spark plugs. I thank it in the wiring to the coils . I got a back fire out of the throttle body so it could be in the time or a wire to the coil.