It seems my second cylinder isn't firing. I have a lot of exhaust noise when accelerating. But here's the weird part the other day I went for a 45 min drive and just like that the secon d cylinder started firing and wow what a difference it made. Ran great all day long after that but when I got home and let it sit overnight my problem came right back. Any idea's?

 

Watch it idle at night, it's better than the 4th of July. Cory's spark plug wire routing leaves something to be desired

 

I think what hes trying to say is check for miss-firing due to sparkplug wires or bad plugs.

 

new plugs and wires so I know that's not the problem (I checked all of them to make sure)

 

you seen any oil leaks around the head gasket?

 

Nope not at all

 

Clogged injector??

 

Nope I checked that too and still no luck

 

fouled plug? even new they can be bad ya know I just had this happen with my 3.no and thats what the issue was , brand new Nippion Denso plugs even

 

Nope all the plugs are good. Moved them around a few times and the second cylinder is the only thing not firing.

 

what about distributor cap and rotor?

 

Cap and rotor look good but I haven't replaced it or anything. I've pulled the plug wire on the 2nd cylinder while the engine is running and it apears to be working just fine.

 

how do you know the second cylinder isnt firing?

 

When I pull the plug on the second cylinder nothing changes at all.

 

ok, leave the plug attached to the ignition wire, ground the plug on the valve cover gasket and start the motor. then see if the plug itself is firing, lemme know what you find.

 

Toyota or aftermarket plug wires?

Some of that cheap aftermarket Toyota stuf is just that...cheap crap.

Had a buddy with the exact same problem and it was his new aftermarket plug wires.

 

Yes the plug is firing when grounded to he balve gasket. And it's clear that the cylinder is building plenty of compression (crazy loud). It seems like the only think that might make since is that fuel isn't getting into the cylinder. But I don't know?!?!

 

ya, you've got a fuel issue... check the connector on the fuel injector to make sure its securely on there... if it is, I'd say look into getting some injectors (I have a few lying around)

 

The connection is good. I moved the injector from cylinder 1 to cylinder 2 because I knew it was working in cylinder 1. Anyway it's not working in cylinder 2 so I'm thinking something is wrong with the wiring for cylinder 2 injector (it's not the actuall injector). But I'm not really sure where to start as far as finding the problem.

 

are you leaking fuel out around the injector or do you have any kind of gas smell, and is the injector properly seated?

I'd almost be tempted to pull the connector off of the injector and check it for voltage signals using a multimeter