2006 z06 p0171
Thread Starter
Safety Car
Joined: Feb 2006
Posts: 4,542
Likes: 385
From: Fort Worth Texas
2006 z06 p0171
I got this code recently on my 06 Z. I can clear it ,and it takes a few days come back.
Car has full Borla exhaust, Hurricane CAI, and a tune. All connections look good, and MAF looks clean. Should I be looking at bad forward O2 sensor or air leak? Thanks for any help...
Car has full Borla exhaust, Hurricane CAI, and a tune. All connections look good, and MAF looks clean. Should I be looking at bad forward O2 sensor or air leak? Thanks for any help...
Thread Starter
Safety Car
Joined: Feb 2006
Posts: 4,542
Likes: 385
From: Fort Worth Texas
Do you think it could be a bad or lazy O2 sensor? This car has 19k miles, so I would not think the intake manifold is leaking. I have checked all hoses and connections. I did swap my Blackwing in place of the Hurricane and still need to drive the car. The hurricane did have a slight deformation at the top of the opening that connects to the duct in front of the TB. Hoping that might have been the leak.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Lazy O2 is easy to pick up via data logging the sensors.
Not sure what you have to data log, but for O2's, I use an elm327 wifi and my laptop running Scanmaster. Hence can pull up graphs on a single screeen for both pre and post sensors both sides (all 4) to not only take a look at specific sensor, to to compare both banks to each other as well.
Just look at the cycle rates between bank 1 and 2, and should be able to pick up the problem quickly if you have a lazy sensor in the system.
As for before replacing a pre-cat 02 sensor, swap them out between the banks and see if the problem follows the sensor. If not, then double check the wiring and connectors isntead.
Not sure what you have to data log, but for O2's, I use an elm327 wifi and my laptop running Scanmaster. Hence can pull up graphs on a single screeen for both pre and post sensors both sides (all 4) to not only take a look at specific sensor, to to compare both banks to each other as well.
Just look at the cycle rates between bank 1 and 2, and should be able to pick up the problem quickly if you have a lazy sensor in the system.
As for before replacing a pre-cat 02 sensor, swap them out between the banks and see if the problem follows the sensor. If not, then double check the wiring and connectors isntead.
