Hello all, well after takeing my car to the shop and my mechanic was unable to scan it as thoroughly as he would have liked to due to a lack of equipment i will read you off the following codes.

P0157 Bank 2 sensor 2 low voltage- I replaced this sensor and it turns out the sensor was bad so this code is a given but just wanted to point it out anyway

P0327 Knock Sensor 1 Circuit low input- Mechanic said the sensor was running in normal parameters when he scanned it so he doesnt know why its throwing a code

P0412 Secondary Air Injecton Check valve A- I have no idea what this means.


Do you think the check valve could be causeing the knock sensor to throw a code? I doubt a bad o2 sensor would cause it to go off either. I am just really puzzled because last time i had the car scanned about 4 months ago bank 2 knock sensor was throwing a code and now it has switched to bank 1. All the connections appear to be fine to all terminals no fuses are blown so i am really lost. If anyone has any advice please let me know, I would really like to know what i am looking at before i have to go to the stealership to have this thing checked out cuz no body else knows what they are doing.

Thanks all for your help

 

p0157
p0327
p0412

see if any of that helps

 

Thanks for the help, for what that website said i guess its all electrical? For the knock sensor it could be a ground or a relay at the rear of the manifold. The same thing for the secondary air injection code, it says its amperage is wrong and to use a test coil. I dont know anything about electrical work so i dont really want to mess with this stuff on my car. The only thing i could do is swap out the knock sensor but if there isnt a problem with it i will be out 100 bucks and still have to go to the dealer to have them run tests.

Could anything else be causing this? If knock sensor is operating in the normal parameters then i guess it would have to be electrical connection drawing amperage. Could there be any thing else that would throw these codes? Thanks for the help guys

 

TTT

 

Alright well, i am going to be takeing it to the dealership to have it worked on. Does anyone know a good ball park figure i should shoot for? Mostlikely i am going to have the knock sensor replaced and prob some electrical testing since the code indicates it could be the driver or a ground for the secondary air injection code. I am hopeing no more then 400 does that sound reasonable depending on what they find?

 

Does $400 sound reasonable?