I have 2001 Toyota Camry with around 130K miles and check engine light was on. Since I could not pass the emission test, I took the car to the Goodyear shop for the computer test and they said I need to replace a lot of parts. So I replaced the following parts : catalytic converter, oxygen sensor, EGR vacuum modulator, evap. vacuum control valve, vacuum switching valve, exhaust flange gasket, EGR valve position sensor. After four days later, light came back and the same mechanic did the computer test again and asked to replace rear oxygen sensor. The mechanic said that is what the computer reads. So I replaced the rear oxygen sensor. Then yesterday, four weeks later, engine light came back again, but this time the computer test was fine and the mechanic said 'use the highest octane gas'. Can anybody give me an advice what is going on in my car? Was that the right thing what the shop did to repair my car's emission system? Can anybody know any policy if they replaced wrong parts?
2007-10-04 04:07:11 · 3 answers · asked by second 2 in Cars & Transportation ➔ Maintenance & Repairs
Your current mechanic is just throwing parts at the vehicle.
I noticed the most obvious thing to replace, and one of the easiest, you didn't mention.
Did you replace the AIR FILTER? A clogged air filter can give bad O2 readings (due to a lack of oxygen) and can cause the check engine light to come on.
Obviously your current mechanic can't fix it right. Higher octane gasoline won't make the check engine light stay off, higher octane fuels actually are more resistant to combustion.
2007-10-04 04:31:21 · answer #1 · answered by hsueh010 7 · 0⤊ 0⤋
What a coincidence.. I also have a 99 4cyl Camry and the engine light won't go off and I have been unable to find the problem....I believe it is something in the fuel vapor absorption cannister that connects to the fuel tank...My Camry has 150,000 miles and has never given me any problems. I took it to the dealer last year to look at when I had an inspection sticker due, He gave me a new inspection sticker and told me not to worry about the light, he couldn't seem to figure out how to fix it..
2016-05-20 22:42:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Your mechanic is misreading the information or doesn't have a clue what he's doing. You have replaced about every emission part on the car and now increasing octane? Go to another mechanic, I'm sure there is a simple problem that is triggering all these codes.
2007-10-04 04:15:16 · answer #3 · answered by Lab 7 · 1⤊ 0⤋