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.
Resources for the Repair and Maintenance of your 2003 Lexus IS300
2003 Lexus IS300
2003 Lexus IS300 Problems
Occasionally, the Check Engine Light is illuminated due to failures in the evaporative emission (EVAP) system. Our technicians tell us that proper diagnoses is generally required to confirm the exact fault causing the warning light to come on.
2003 Lexus IS300 Questions and Answers
when i drive the shifter makes a clanking nose and the car wont go for like a half a second then its works fine. it does this every time i come to a complete stop, rolling stops don't seem to...
My battery is dead on my car and I can not move it out of Park gear
the check engine light came on, it requires a front catalytic converter, i took it to a shop and they said i need to just replace the two front ones. they said i have to buy the oem version, in ord...
HAVE YOU SEEN ANY ISSUES WITH THE RADIO NOT WORKING DUE TO WINDAHIELD REPLACEMENT? IT COMES ON BUT NO SOUND
2003 Lexus IS300 Reviews
The interior finish on the dash of my IS300 has per other observations from stories I've read started to "melt" when touched. Dealership stated problem due to use of Armor All which I did use over last few year. I removed interior dash per instructions I obtained on line and used solution of ammonia, water and dish soap to rub off all paint on the dash. It came off like black tar, then I purchased black vinyl paint from Duplo and used an adhesion primer to re-paint entire dash. I did not apply any clear coat finish. The final finish matched the other black pieces in the interior perfectly. All in all I spent weekend removing parts and that week painting parts in the evening and reinstalled parts the next weekend. Removing air bag, instrument panel and lowering steering column and radio were not fun but well worth the final results.
I have a 2003 is300. My wife talked me out of a Cooper S and I'm happy she did, cause this car is great!
IS300 SportDesign. Love the car, great engine, very quiet with lots of spunk. It will keep up with my SL500 up until about 90mph. Great body style and attention grabbing wheels (13 spoke). It handles very will with the SportDesign suspension, much better than the non-SportDesign models. Almost as good as my Porsch 968 and definitely faster.
Passenger side dash airbag cover is fading even though it is garaged and spends very little time in the sun.
Heat/AC temp varies about 3-4 degrees before coming on.
Replaced front strut at 25K miles, and is making the same noise again at 65K.
Great driving car with nimble handling and an incredibly smooth engine and transmission. Not as luxurious or roomy on the inside as higher end lexus vehicles, but overall a great car for those who appreciate good handling and fun driving.