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What could cause a 1991 Lexus LS400 to shake at high speeds rough idle but then go away after 20 minutes and could it be an oxygen sensor bad exhaust lines or bad fuel injectors?
Wiki User
∙ 12y ago
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My same problem:
I have exactly the same problems with my Lexus but this is a early 97 one. the bad idling is not noticed by the EQ I think as there is no engine light burning. I have read on a forum that someone changed the engine mounts and drive shaft trannys to get rid of the vibrations at higher speeds. Is your one vibrating when pulling or braking on the engine at high speeds? In my case it is only vibrating when I am cruising at a constant speed. I checked mine but could nog see anything particularry there. Still I ll try to change them as they cost only $24 on eBay. Try the O2 sensor tutorial on www.lexls.com . And please let me know when you solved the problem as I have the same problems.
Good luck searching!
Milko
Wiki User
∙ 12y ago
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What sensors are in the exhaust pipe on a 1991 Saturn sc?
The sensor in the exhaust manifold is the oxygen sensor. It measures the amount of oxygen left in the exhaust after combustion. The computer then takes that information and "decides" if the car is running rich or lean. It then adjusts the fuel injectors to keep the emissions at a minimal level.
What does oxygen sensor in the exhaust system does?
Measures the amount of oxygen in the exhaust
Where is the oxygen sensor on a 2000 cavalier?
The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mountedin the exhaust pipe after catalytic converter
Where is the oxygen sensor on a 1995 Pontiac Sunfire?
The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mounted in the exhaust pipe after the catalytic converter
Where is the oxygen sensor on a 1990 pathfinder located?
The oxygen sensor is located on the exhaust manifold and is the only item on the exhaust with wires going to it.
Why does your truck have black smoke coming from the exhaust?
Could be a diesel? If not then replace your oxygen sensor on your exhaust. A bad oxygen sensor causes the exhaust smoke to be dark in color.
Where is an oxygen sensor sensor usually located?
exhaust manifold
What is a hego sensor?
heated exhaust gas oxygen sensor
Where is the oxygen sensor for a Honda Odyssey?
In the exhaust manifolds & in the exhaust itself
Where does an oxygen sensor go on a cars engine or exhaust system?
Exhaust
Where is the oxygen sensor 95 dodge neon?
The oxygen sensor is screwed into the exhaust, behind the engine.
Why is your engine light onon your 96 Tacoma?
Usually its caused by your oxygen sensor also known as O/2 sensor. Or a missfire caused by water in fuel or dirty injectors. You can turn the light out by disconecting your battery for 10 minutes or longer but not less,this will reset the computer and the light will stay off unless the sensor is bad or you have another missfire.The sensor is located in the exhaust pipe.
