O2 sensors?

[tab1217]

So just sitting in the garage my car developed a problem, was running fine when I put it away. I started it the other day to let it run, ran fine when cold. When it warmed up it sounded like it was gonna stall, sputtering and missing and popping. Drove it and it was like opti kind of problems plus Surging when slowing down, missing, almost like back firing. No ses light. Drove it the next day ran like a champ when it was cold, soon as it warmed up, same problem. From what I found people were saying o2 sensors. Bought 2 Bosch sensors, changed driver side, couldn't get to the passenger side to save my life so I thought I'd get lucky and see if just the drivers side fixed it. Nope, ran fine til warmed up then same thing. So, 2 questions. 1. How the crap do you get to the passenger side. From top or from under. 2nd, you think it's the o2 sensors? Or am I just wasting time and money here to fix something that's not the root cause??

[Fbomb]

Sounds like O2's. You getting any codes?

[nascarnate326]

Stock Manifolds?

[1BADAIR]

if its stock or tuned well unplug them and see what it does.
coolant temp sensor?

[tab1217]

Don't know if there's any codes, no way to read em. Yes, stock manifolds and I was gonna try to unplug the passenger side o2 but I couldn't get to the connector.

[sman]

Id try to unplug before replacing. Should force the car into open loop. If that fixes your problem, then replace the sensor.

[tab1217]

I've got another coolant temp sensor out of a spare water pump that only had 200 miles on it. I'll try changing it today, how much coolant can I expect to pour out on me? lol

[sman]

Depends on how quick you are, lol.

[tab1217]

Ill try to go quick lol. How do you get at the passenger side o2 sensor? From the top or the bottom? I cant get to it to save my life.

[sman]

I have an ls and long tubes, have no idea on the boat anchors.

[TrickyTransAm]

Do you have an 02 socket? May be easier as it acts like a crows foot. (Or use a crows foot)

Heat up the bung good with a torch before trying to unscrew it.