Check Engine Light P0402/P1411

Prepare yourself for a long road. I have been dealing with this issue since last spring with my 2000 Camry LE 4 cyl. Don't take it to the stealership, take it to a mechanic you trust if you have one. I have replaced parts that were fine and am now reading 8 different codes. Have fun!

. My OBD II scanner retrieves the following two error codes - P0402

Prepare yourself for a long road. I have been dealing with this issue since last spring with my 2000 Camry LE 4 cyl. Don't take it to the stealership, take it to a mechanic you trust if you have one. I have replaced parts that were fine and am now reading 8 different codes. Have fun!

Could you expand a bit on your reply? What parts were replaced, and what new codes came developed? Any hint of a vacuum leak? Thanks

I did not replace the whole EGR system, but the VSV switch (don't ask me which one) and I replaced another VSV for the evap system on the rear of the car (again don't ask which). I also replaced the gas cap and all hoses leading to and from the EGR valve.

For what the car is worth, I stopped dumping money in it and am now living with the engine light being on. The rest of my codes are all Evap related. I don't know what Toyota did to the car, but it is very frustrating. I have since listed the car for sale and am hoping to get my money back, but no guarantees on that.

I have searched the internet for same error codes combination. Seems like this combination happens quite often and the problem points to a faulty EGR valve position sensor. I've measured mine and found the resistance is out of range. Planning to replace this sensor soon and see if it cures my problem.