You're going to have to put it on a code reader to get the answer to this one. Could be as silly as a loose gascap or something really serious. Take it to your local mechanic.
1998 rav4 engine wont idle and clacking noise from under timing belt cover
Is there a reset button on a 1996 rav4? Had it checked out, and said it need spark plugs and wires. Replaced it and check engine light still on.
With an OBD2 scan tool.
if your check engine light is on your computer is reading a default code and needs to be serviced by a mechanic there is no fuse to control the light
There are dozens and dozens of causes for the check engine light to stay on. You need to have the computer checked for codes to know possible causes.
Every vehicle has warning lights to inform the driver of things going on. The check engine light comes on because there is something going wrong with the engine.
The firing order of a 1998 Toyota RAV4 with the 2.0 DOHC engine is 1-3-4-2
Check engine light on, tires not inflated properly, driving habits,
Try to unplug the positive of the battery for a few seconds then put it back on(if your light comes back after a while then you should go to make it check)
The motor oil capacity of the 1998 Toyota Rav4 is 4 quarts. Low viscosity PAG 46 oil is recommended for this vehicle.
The Gates website ( they make timing belts etc. ) lists a timing BELT for the 2.0 liter 4 cylinder engine in a 1998 Toyota RAV4
Try disconnecting the battery for about 10 minutes - or have vehicel scanned to determine problem and have codes cleared