92 240sx with 96 ka24de what o2 sensor do i need

[bigirv14]

ok i got my 92 240sx and i swap a 96 240sx ka24de motor and i think i might need a new o2 sensor because i have water in my dip stick and my car is smoking a lot it runs ok and it dose not over heat it just smoking like crazy and its white smoke so ai was asking if i buy a 92 o2 sensor since im my ecu and everything els is still from my 92 or do i just buy one from a 96 ?

[WDRacing]

You'd buy a 92 sensor. The ECU doesn't care what motor is in the car, only what sensors are feeding it the info.

Water in your oil is a bad thing, change it out as quick as you can and then recheck it frequently to see if it returns. Use Supertech from Walmart, real cheap and it works well. I wouldn't go over 5k per change though, then again, I wouldn't go over 5k regardless of oil type.

[Dattebayo]

What in the world makes you think that water in the dipstick is related to the oxygen sensor? White smoke is usually a result of burning coolant... These symptoms generally lead to a bad head-gasket and coolant leaking into the oil.

[bigirv14]

Ok I sure will I was reading on line about another 240 n it had the same wrong thing as mine n it said to drain all oil n water n let it dry n then change an o2 sensor n ill fix n I was try it before I do head gasket change and I also was going to check the manifold gasket n if that don't work then do the head gasket . And if it keeps getting water in the oil dipstick after I do all that minus the head gasket what could it bee ? The head gasket is the last thing I'm going to do .

[Dattebayo]

Well, if I read that correctly.. How could coolant get in the oil without there being a head gasket break? I know of no other place where coolant and oil cross paths, unless you somehow crossed the lines somewhere in your install. Was the engine known to run fine before you installed it? Meaning- did you actually see it run?

[bigirv14]

I did but like moths before the other guy got he's rb but a lot could of happen in a few moths . But what it dose is when I start it won't smoke till like 2min after when I'm at stop it just smokes n smokes n it's white n when it's moving it smoke less n my car is running fine it just smokes

[Dattebayo]

Well look, I'm not the expert and you're in the wrong section here, but make sure the smoke is actually white and not bluish. That's important.

You should be posting in the 240 area. This is gen chat, where we don't talk about cars except in general terms, not for tech.

[WDRacing]

Moved to 240 Tech.