0
What does it mean when my check engine light reading says O2 1 stuck in lean?
Wiki User
∙ 15y ago
The engine computer is not seeing the O2 sensor move off of lean like it should. The O2 could be bad, The wiring could have a problem, or there could be a running problem that is making the O2 read incorrectly. With out a scan tool and a service manual this is very hard to diagnose.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Can bad thermostat make server engine soon light come on?
This depends on the vehicle. If the thermostat is stuck open the engine won't get to the proper operating temperature which could trigger the MIL (check engine light).
Would a bad thermostat cause check engine light to come on in a 2007 crown vic?
A defective thermostat can cause the engine to overheat. It can also cause the engine to not reach full operating temperature if the thermostat is stuck open. It is possible this could set the check engine light.
What is the noise coming from the engine of my 2005 element after it was drove in some deep water the check engine light came on now we have a noise in the engine we replaced the serpentine belt?
you have a stuck valve
Your 2002 Bonneville runs steady at 200 degrees is that normal?
this is normal for this engine, in fact anything short will trip a check engine light. the cause will be a low coolant condition, a thermostat stuck in the open position or a bad coolant sensor. this is normal for this engine, in fact anything short will trip a check engine light. the cause will be a low coolant condition, a thermostat stuck in the open position or a bad coolant sensor.
What causes the check engine light to stay on in a 2002 Pontiac Montana?
Good Chance this is caused by a faulty O2 Sensor. I had the engine light stuck on in my 2002 Montana and replaced rear O2 sensor and it turned it off.
How does the car know the EGR valve is bad?
If the egr valve was stuck open, the engine wouldn't idle. If the egr valve was stuck closed you may hear excessive pinging (spark knock) and in most vehicles, the check engine light would illuminate.
Can a check engine light indicate a bad thermostat?
Many vehicles will trigger a check engine code if the engine never reaches its designated operating temperature (Such as if a thermostat was stuck open). However, there are hundreds of other reasons a check engine light can come on. Putting in a thermostat solely because the check engine light came on is a very bad idea. Any time that light comes on you should have the vehicle scanned by a trained proffessional (The guy at Napa doesn't count). A good service technician can use the information given by the engine computer to determine what is wrong with the vehicle.
What causes 2004 cadillac deville to show check engine light p0741?
Trouble code P0741 means:Torque converter clutch circuit performance or stuck on
What would cause the Check Engine light to come on and the Temp gage to never reach normal range?
I would suspect the thermostat is stuck open. Replace the thermostat.
Why is check engine light on my ford thunderbird 1996 computer reading code p1443?
I had my check engine light come on in my 96 T'bird and I stopped at Autozone to get it checked. I got the P1443 error as well, and it said probable causes were: 1. Failed EVAP pressure sensor 2. Blocked hose between purge valve and FTP sensor 3. EVAP purge valve stuck closed I have read from others that say it could be just a cracked hose as well.
Whatcauses 8.1gas engine vortac to surge 2005 workhorse chasis?
could be EGR valve stuck open is your check engine light on? hook it up to a code reader and see if it's throwing a code..
Your shifter is stuck in park how do you get it to shift?
check your brake light fuse
