Curious. How did you test the ignition coils to determine they were good?
Miles since the timing belt was changed?
Any compression tests done?
Ever clean the EGR ports etc?
Check the Cat Converter with an infrared head gun to see if it is getting clogged.

Did the old spark plugs give any clue on oil or richness?
Remember, one misfiring cylinder can show as multiple cylinders as misfiring.

What were the symptoms that caused you to install new injectors and spark plugs?

Hopefully you will get a lot of good suggestions.
Try searching for multiple cylinders misfiring, etc in this forum.
Best of luck,
Buffalo4

 

Coil pack is the usual culprit. Double check that it’s actually good.

 

Honda said 2,3 and 5 where misfiring on my 2000 2 weeks ago,
They move the coils around and found it was #2 coil.
Sure glad I got an OEM coil.

 

Well they were wrong
🤡🤡🤡🤡

Well as expected engine lost compression. RIP.

 

Well as expected engine lost compression. RIP.

bent or burned valves?

 

ouch misfires on both banks ... what were the compression readings for each cylinder?
what do the old plugs looks like? an oily mess?

assuming it still runs....

 

Still runs. If you give it too much throttle it chocks and dies.

did your timing belt skip a tooth causing compression numbers to be out of wack?

Either that or and head gasket went shit. There's moisture or coolant in all 3 plugs in the back head.

 

did your timing belt skip a tooth causing compression numbers to be out of wack?

 

What was your compression readings.
Any clue on why this happened, low coolant, timing belt loose or broken.?

 

My guess is timing belt jumped.I don't have the readings here with me. Something else is going on not sure what 🤣

 

is it eating coolant?
were your temps all over the map?

if it is and you think its hopeless you could try one of those miracles in a bottle

a belt jump could be a saving grace.

 

Won't know until I open it up. And I'm not sure if I want to digg in. I'm buying an used jdm 3.0. 50k miles on it, guaranteed it will be straight swap.

 

I did another compression my self.

#1- 200
#2-185
#3-210
#4-240
#5-210
#6-220

Cylinder 3 is dead. Put 3 different coils on it and it's dead.

 

those numbers are good...

you need to start testing injectors and output to the coil.
im getting a feeling the issue is the PCM/ECU.

seen a few random misfires in my time that were a faulty PCM/ECU.

could also be bad grounds, corroded connections, being up there in age, thats where I would start.

 

#3 dead?
Good compression so?
No spark or no fuel?
Buffalo4

 

#3-210

I haven't check spark or fuel yet.
I tried 2 coils no change. Unplugged the ignition coil one by one and # doesn't affect performance. I tried that coil on #1 and is good then #1 on 3 it makes no on performance plugged or Unplugged.
With the car on the harness for coil #3 gets 14.2V.
Not sure if that voltage value is what it should be or not. It got dark, ill continue tomorrow. Any input from a knowledgeable member would be great 👍