Misfires/rough idle

I've posted about this problem before but I have new info now. Engine started running rough and i had misfires on 2 and 5. I took all the plugs out and did a compression test. I have 0 compression on cylinder 2. I put everything back together and started the truck and it runs rougher than before. Code reader says misfires on all 8 cylinders. I took out all plugs again and they are soaked with gas. I had an old original set sitting around so I put those in. Truck barely starts and still misfires on all 8 cylinders. I dont know what to do next.

 

@empty_lord

 

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I tagged a Toyota Mechanic. Hopefully he can help.

 

Ok. Thank you. Hopefully he will respond.

 

You had 0 compression on 2? If that’s the case then we have a big problem here

 

leaking fuel injector seals? If the engine is flooded then it wouldn't create spark.

 

If injectors were plugged in when the compression test was being done, there’s a good chance cylinders are flooded. But the big red flag is 0 compression. In cylinder 2

 

Yes, injectors were plugged in. I didnt know to unplug them. I just unplugged the individual ignition coils and removed all spark plugs to do the compression test. But that was all done last week. I had no compression on cylinder 2. After putting it all back together, I got misfires on all cylinders. Today, I swapped the plugs with the original set and that's when i noticed all the plugs were wet with gas. When i put the other set of plugs in,the truck didnt start right away and when it finally did, it wont stay running without giving it gas.

 

One dead cylinder can drag all the cylinders along with them. I would redo the compression checks with all the cylinder dried out and injectors unplugged and see what readings you get

 

not a mechanic but have always done how I was taught many years ago which matches the FSM.

 

Ok. How long should I let the cylinders sit to dry out?

 

When I did the compression test,I pulled the fuel pump relay so no fuel should have been pumped through the injectors.

 

Could this be that my timing belt jumped a tooth?