The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.
Resources for the Repair and Maintenance of your 1994 Lexus ES300
1994 Lexus ES300
1994 Lexus ES300 Problems
On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.
Sludge can build up in the engine because Lexus did not recommend frequent enough oil changes. Lexus will sometimes offer a discount on cleaning the engine if necessary. Owners who changed their oil every 3,000 miles did not experience these problems. This sludge build up can lead to excessive oil consumption.
Intermittent failure of a purge control valve in the evaporative emission system can cause the Check Engine Light to illuminate. A failed valve should be replaced to correct this problem.
The Check Engine Light may illuminate because the mass air flow sensor sends incorrect information to the engine control computer. This can cause a loss of power on acceleration. A failed mass air flow sensor will require replacement.
1994 Lexus ES300 Recalls (Recent)
1994 Lexus ES300 Questions and Answers
i need specs for timing belt settings when replacing it on a 94 lexus es
when i go to start my car it wont start right away..then i try it again it starts but acts like it wants to cut out then smells like gas.about a month ago my check engine light came on and my o/d l...
i changed my air filter today and it smelled really bad of gas. why?and how do i fix this problem
where is the ECU locate? how to replace it.
1994 Lexus ES300 Reviews
I bought my Lexus a couple of years ago and it's a GREAT car, But...! The valve seals started leaking; now it smokes and uses oil like crazy ($2,800). The check engine light is on after absolutely everything($1,400) has been replaced. The dash light for the "OD transmission problem" has been going on and off every since I purchased the car. Yet, It stays on for a few hours and then it goes off and nothing seems to happen. **Nickel & Dimed**
I bought a Lexus directly from a dealer when a 2 year lease was up. That was 1996 and now it is 2011 and except for a current exhaust repair, routine and preventative maintenance prove Toyota/Lexus quality is good for over 230,000 miles. How many other car manufacturers can demonstrate a car's longevity in a state covered with salty roads a third of the year.
Thank you Balise. Amy
My car will not accelerate after 30 minutes it gets hot and I have to let it sit for some days. What will cause your car not to accelerate?
Purchsed used in 2000. Love it and always will. Great ride and comfort. Not afraid to jump in and drive across the country in it.
Had a few repairs but mostly maintainance and age of the vehicle. Never let me down unless you count a punchured tire flat.
I get a lot of "This is a 94, wow looks great for a 16 year old car".
God gave me this car. I purchased the 1994 lexus 300ES in 2006 because JD POwers still rated it 4 1/4 stars over all. It's the most reliable vehicle I've ever owned. Replace the tie CV Joints in 2008 ($289) but thats minor considering it had over 200,000 miles. For 1 1/2 years I drove it back & forth from Madison Wisconsin to Detroit Michigan every 2 weeks to see my wife and daughter with not 1 problem. Today I'm online to see how to change the brakes.