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 2003 Toyota Solara
2003 Toyota Solara
2003 Toyota Solara Problems
Debris can get into the idle air control valve. This will restrict the air flow into the engine, causing idle speed and/or stalling when cold. The valve can be cleaned or replaced to correct this concern.
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.
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.
2003 Toyota Solara Questions and Answers
My 2002 Solara (4 cyl) is stalling while idling and I want to check the fuel pump. How do you access and test it? Also, what else might the problem be?
my mechanic cleaned out the area controlling the idle speed and it went from 600 to 1000, is that ok
after a mechanical scare I drove straight to the toyota dealership & the problem I was concerned about was nothing. However, they informed me I needed an oil change (which I had just checked th...
The key fob when press opens and locks the doors and the lights flash on the car but no beep. Checked the horn and it works. Any information would help. Thank you for help.