UNR.Grad

Any help would be appreciated with this problem:

My '97 4Runner 3.4L started stumbling and threw a CEL about half way through a long drive home, I limped home and checked the CEL, it was a P0305. I replaced the plugs and wires thinking this would solve it as they were due. The problem got better, but not fixed. Still stumbled and produced a P0305 CEL.

I then thought it must be a coil pack gone bad, as this had happened on my old '00 once. I cleared the CEL, swapped the #5 coil pack with #3, went out for a drive and produced a CEL again. When I checked it I expected the problem to follow the coil pack to #3 but it threw P0305 again.

I'm stuck what to do next, maybe it's the fuel injectors themselves? How can I diagnostically check them to see if the one feeding #5 is bad?

Thanks!

vital22re

iTrader: (2)

What plugs and wires did you go with? Have you done a compression check yet? When was the last time you replaced the fuel filter? If your compression is good and you have good ignition components then I'd pull the injectors and have them professionally cleaned.

UNR.Grad

I went with Denso and NGK wires.

I checked the fuel injectors on the passenger side, maybe my voltmeter is off but #5 tested at ~95ohms, #3 at ~31ohms, and #1 at ~15ohms. Any ideas?