What have you done to your MSP today?

Ring set DID NOT show up with my UPS shipment today... I wanted the engine assembled by Sunday, but that obviously isn't going to happen...
 
I need the rings!!! That's all that's stopping me!! DAMN IT! I'm so close!!!
 
Ok so last night on my drive home the car started sputtering and I had to get it towed home. Well today I go read the codes and I have a cylinder 3 misfire and a p0421 code on the car. I had one extra coil pack at the house and friend that and it didnt help. It was just the coil pack withought the plug for cylinder three on it though Sony used the same plug for cylinder three. After that I pulled the spark plug out of cylinder three and plugged it into the wore goin to the coil pack and placed it on top of the engine and turned it over and it's getting spark. Im not sure what else it could be. Could it be the bad o2 sensor? Or what else should I try doing?
 
Ok so last night on my drive home the car started sputtering and I had to get it towed home. Well today I go read the codes and I have a cylinder 3 misfire and a p0421 code on the car. I had one extra coil pack at the house and friend that and it didnt help. It was just the coil pack withought the plug for cylinder three on it though Sony used the same plug for cylinder three. After that I pulled the spark plug out of cylinder three and plugged it into the wore goin to the coil pack and placed it on top of the engine and turned it over and it's getting spark. Im not sure what else it could be. Could it be the bad o2 sensor? Or what else should I try doing?


Whats your vacuum like?
 
Ranges from 18 to 20 idling, I checked all my vacuum hoses though and they seemed to be alright and good connections still
 
I guess I'll try replacing that ad see if it helps, the code reader just gave me the code and said bank one, is that the one in the manifold?

are you having the bank one system to lean code? if so i had the same issue until i changed my spark plugs bc appearntly the msps only can use a certain ngk plug... dont happen to remember the p number though
 
are you having the bank one system to lean code? if so i had the same issue until i changed my spark plugs bc appearntly the msps only can use a certain ngk plug... dont happen to remember the p number though
I'm not sure what the whole code said it just gave me that number and I remember bank one, I replaced the spark plugs though not even a year ago and used the ngk and soars them out the right amount
 
P0421

* The catalytic converter is no longer functioning properly
* An oxygen sensor is not reading (functioning) properly
* A sparkplug is fouled up
 
If you checked the plugs and they were good then I would say its probably the primary O2 thats the issue. Check the wiring and everything as well. A bad cat wouldnt cause missfires.
 
. A bad cat wouldnt cause missfires.
bulls***. I've seen a hundred times. A catalytic converter has to be totally ****** for it to cause misfires, but they will. And it doesn't matter here, because he's catless...
 
Ok well I will pick up a new o2 sensor in te morning and see if that helps, I need to replace it anyways so might as well try it
 

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