i have a 2000 4runner. i have noticed a decrease in power and the idle is rough. the check engine light is on and it is giving the P0300 and P0301 code which is random/multiple cylinder misfire and cylinder 1 misfire. i have replaced the spark plugs and switched the coil packs from #1-2 and nothing has changed. also if i unplug the number 1 fuel injector, nothing changes....unplug # 2 and the idle drops. also, if i plug in the #1 wire into #2 then it runs the same. i also have tried swapping the #1 and #2 fuel injectors and that didn't help.....as you probably can tell, i am totally stumped...the next thing i'm going to check is the compression. but if anyone has any ideas as to what this might be....it would be greatly appreciated
thanks