4 runner has the engine light on, when tested it said gas mixture is too rich, I just replaced the o2 sensor, what should I replace now? I need to get it smogged and it won't pass cause of the engine light. It's a 2000 SR5.
2006-07-31 16:09:39 · 5 answers · asked by sweetie 4 in Cars & Transportation ➔ Maintenance & Repairs
Did you replace both sensors. Also if you truck is a California car the rear sensor is not a true 02 sensor but a air fuel ratio sensor. Even though they look the same the work different and you need to make sure you put in the correct one. Also not all after market 02 work well in Toyota try and find a DENSO that's who makes it for Toyota
2006-07-31 16:35:33 · answer #1 · answered by uthockey32 6 · 3⤊ 1⤋
Replacing the O2 sensor is probably not going to solve the problem as you might have guessed. You need to take this car to a good mechanic to get it fixed right. There could a be a leaking fuel injector or the air filter could be clogged. Without a proper diagnosis, you'll never know for sure.
2006-07-31 23:15:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Check your gas tank cap too... that can trigger a light indicator.
But it still has to be reset at the shop.
The light can still be lit even though the error has been corrected.
It has to be manually reset... check the web for any hints using either the ignition switch or take it by the shop for a couple of minutes.
2006-07-31 23:14:05 · answer #3 · answered by J.D. 6 · 0⤊ 0⤋
The fuel mixture should be electronically controlled. The problem could be the computer itself.
2006-07-31 23:13:44 · answer #4 · answered by lj1 7 · 0⤊ 0⤋
it may be a false light but if your concerned take it to a mechanic and have them check it out.
2006-07-31 23:13:13 · answer #5 · answered by mmcclaskey31516 2 · 0⤊ 0⤋