What is correct oper. temp for LO3?
Thread Starter
Senior Member
iTrader: (10)
Joined: Oct 2003
Posts: 666
Likes: 0
From: IL
Car: 91RS_92Z28
Engine: 5.0_5.7
Transmission: WCT5_WCT5
Axle/Gears: 3.08_3.42
What is correct oper. temp for LO3?
My car runs consistently around 140-150, maybe 200 stuck in traffic for a while. I do have mostly water in my system currently. Is this the cause?
(The engine is back to all stock parts.)
At what exact temp does the O2 sensor come into play?
What is the ideal temp for a stock LO3's ECM? Power/Economy
(The engine is back to all stock parts.)
At what exact temp does the O2 sensor come into play?
What is the ideal temp for a stock LO3's ECM? Power/Economy
Supreme Member
Joined: Jan 2002
Posts: 1,322
Likes: 1
From: Bloomingdale,IL
Car: 91 RS
Engine: 305 Tbi (L03)
Transmission: 700r4
The ideal operating temp for the L03 is 195-220. The car should enter closed loop(uses O2 senser input) around 160 but other factors can change that temp.
Running just water shouldnt make your engine run that cold. Usually when an engine wont warm up its due to a thermostat that is stuck open.
Running just water shouldnt make your engine run that cold. Usually when an engine wont warm up its due to a thermostat that is stuck open.
Supreme Member
Joined: Feb 2003
Posts: 5,740
Likes: 3
From: Glen Allen, VA
Mine will run an average of about 160 degrees with a new stock 195 stat. If I get stuck in traffic long enough it can reach as high as 220 where the fans kick in and cool it back down. 160 is fine and closed loop will be reached long before that.
Thread
Thread Starter
Forum
Replies
Last Post
gta892000
Cooling
6
Sep 16, 2015 12:37 AM