Problems! O2 sensor...

[sping012]

Ok guys, hopefully someone can help me out here. I was recently driving and the SES popped up. Soon after the car started to Idle really heavy and shake tramendously. I got the car home, but on the way the SES light began to blink, I figured a misfire. So i scanned the codes i have Cylinder 2 Misfire and i also have the O2 Bank 2 Sensor 1 code (Passenger Front) So i'm guessing i have a fouled out O2 sensor, which is causing the Misfire? Anyone else have a problem like this...before i go and shell out $75 for a new sensor? Thanks Guys! This car is a huge pain to drive! lol

[shiftinda93z]

I'd recommend checking out the lead wires to it, making sure they aren't burned/etc... but sounds like you need to replace it(maybe both).

[81DaytonaPaceCar]

Try swapping the 02 sensor with another one.

If the code follows to the new location, you can bet it's the sensor.

Checking the wiring/connectors (as already stated) is another good idea.

[DETROITMUSCLE]

Swap the sensor and see if it changes, if so make sure you buy the Bosch corvette rear O2 sensors they are more tolerant to Longtubes and have a lifetime warranty I have to by a set when I installed my Headers and prior it had similar problems.

[sping012]

ah ok, so a bad O2 can cause a misfire then? Just making sure im not dealing with two problems, and when you say swap, do you mean swap the left and right fronts? I have sim's in the back.

[DETROITMUSCLE]

don't swap with a sim just swap the left and right fronts, if it says the swapped one is bad then change it.

[sping012]

got ya! thanks.

[Keego Ridah]

Screw it just cut em, dont cut the front 2 those matter!!!

[CLOKWRK]

Did you check the plug on cyl.2 ? Loose wire? If you have a flashing SES it is a multiple missfire on that cyl. Unburnt fuel is probably soaking your O2. If you fix the missfire your O2 might be still be OK.

[sping012]

Screw it just cut em, dont cut the front 2 those matter!!!

Yeah the code is showing the front one having the problem, i have sims in the rear though.

Did you check the plug on cyl.2 ? Loose wire? If you have a flashing SES it is a multiple missfire on that cyl. Unburnt fuel is probably soaking your O2. If you fix the missfire your O2 might be still be OK.

Yeah i am going to mess with the wire/plug, but won't the O2 also cause a misfire? depending on if the wires and plugs are all ok.

[shawnc16]

Just a quick little bit of info of how the ECM acually knows how your getting a misfire.... The crankshaft position sensor is actually what detects the misfire. It does this by the crankshaft speed... as every cylinder fires the crank actually speeds up... so when say cylinder 2 doesnt fire... the ECM knows becuase the speed of the crank. Pretty cool huh?

[sping012]

^ Ah thats sweet! Does anyone know of somewhere i can buy a front O2? I checked autozone, and im not sure if those are garbage or if they will work well with the LT's? but am trying to find a deal, lol.

[DETROITMUSCLE]

Go to autozone and tell them you want a Corvette rear O2 sensor. It'll be like $85 but they are the best ones you can buy and have a lifetime warranty. They are Bosch ones but I forget the number.