z28_YOU_HO

iTrader: (7)

Have 5 DTC's

-P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
-P0410 Secondary Air Injection System Malfunction
-P0412 Secondary Air Injection System Switching Valve A Circuit Malfunction
-P0418 Secondary Air Injection System Relay ‘A" Circuit Malfunction
-P1416 Secondary Air Injection (AIR) System Bank 2

My car smells like its running really rich and doesnt feel like its pulling as hard. How do i fix these things so it will stop pulling these codes?!?!?

conan

iTrader: (5)

Did you remove your air pump? If not...You could remove the air pump and have those codes tuned out. Do you need emmissions?

z28_YOU_HO

iTrader: (7)

nope dont need emmisions..I dont know if its removed or not. What the hell is a air pump lol

conan

iTrader: (5)

It's a air pump that blows fresh air to the exhaust manifold. Take the screws out of the black plastic thats in between your driver side wheel and front bumper you'll see a pump and all the plumbing going into the engine compartment. Also check you fuses. If you dont need emmissions this would be a great excuse... I mean great time to add some headers and a ORY.

conan

iTrader: (5)

https://ls1tech.com/forums/showthrea...moval+air+head
https://ls1tech.com/forums/showthrea...val+air+system

2001NBMZ28

You can remove the secondary air and have those codes turned off, but take care of that passenger side precat 02 code.

z28_YOU_HO

iTrader: (7)

i already have LT's and O/R Y...would this already be removed? if so how could i get rid of the codes? would it just be the fuses?

conan

iTrader: (5)

You have to tune them out... hp tuner, ls1 edit, ect.

smg267

iTrader: (23)

The first issue you need to adress is your Oxgen sensor! Bank 2 sensor 1 is passanger side front 02 sensor. Fixing this will make your car run better. Your A/F is all over the place when your front 02 is not reading correctly.

I used the Bosch 1311's the first time mine went bad. The only problem with them was they seemed to burn out and throw the same code every 6-8 months. After switching back to the factory AC Delco sensors the code has stayed off.