Tech Question
Thread Starter
Drifting
Joined: Feb 2006
Posts: 1,877
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From: Ok! So you don't believe in conspiracies, but will you acknowledge the possibility of there being coordinated activities in secret places? Texas
Tech Question
AIR tube fitting broke off of my passenger side header leaving a hole. Will this hole cause the car to loose power? Thank you for the help
Le Mans Master
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
I don't know if you would loose power, but what does that matter? You need to get a patch welded on the hole. Your air lines were not hooked up to the air fitting? This caused a vibration to the point of weld fatigue. If your lines were hooked uo, you need to have the air tube rewelded in place. This all can be done, in place without removing the header. If your not running your lines, it's only a matter of time before the other side breaks. Good luck.
Thread Starter
Drifting
Joined: Feb 2006
Posts: 1,877
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From: Ok! So you don't believe in conspiracies, but will you acknowledge the possibility of there being coordinated activities in secret places? Texas
I am using the AIR system hardware, but it is tuned out. Thanks for the reply. I get a lot more popping/backfiring since it broke. I plan to have both sides patched.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
Well, yes you CAN have power loss... Here's the issue:
You have 2 sets of O2 sensors. The front bank (bank 1) and the back bank (bank 2).
The back banks are used for emissions, but the fronts are used to make sure you're getting the right air/fuel mix. When you have a header leak or an exhaust leak before the bank 1 O2 sensors, the computer is going to detect a different mix because exhaust gases are leaving the exhaust and not being metered by the bank 1 O2 sensors while fuel and air that is metered are going into the motor.
In this case, your computer may start to richen the mix and you'll lose economy and power at the same time. This would also cause some popping and back-firing.
You have 2 sets of O2 sensors. The front bank (bank 1) and the back bank (bank 2).
The back banks are used for emissions, but the fronts are used to make sure you're getting the right air/fuel mix. When you have a header leak or an exhaust leak before the bank 1 O2 sensors, the computer is going to detect a different mix because exhaust gases are leaving the exhaust and not being metered by the bank 1 O2 sensors while fuel and air that is metered are going into the motor.
In this case, your computer may start to richen the mix and you'll lose economy and power at the same time. This would also cause some popping and back-firing.
Thread Starter
Drifting
Joined: Feb 2006
Posts: 1,877
Likes: 1
From: Ok! So you don't believe in conspiracies, but will you acknowledge the possibility of there being coordinated activities in secret places? Texas
Makes sense! I only run one set of sensors, but the scenario you present still holds true. Thank you.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
NP! 
For what it's worth, I had some issues with my car running VERY rich.. (10.5:1 AFR) and it was popping and farting like crazy. I had it fixed and set to 12.7 (because I have a Vararam) and my car has been running perfectly smooth since. In addition, I went from 22-25MPG on the freeway to 28-35MPG... No joke, it holds 35MPG at 72MPH with cruise control on! Kind of a nice bonus.
For what it's worth, I had some issues with my car running VERY rich.. (10.5:1 AFR) and it was popping and farting like crazy. I had it fixed and set to 12.7 (because I have a Vararam) and my car has been running perfectly smooth since. In addition, I went from 22-25MPG on the freeway to 28-35MPG... No joke, it holds 35MPG at 72MPH with cruise control on! Kind of a nice bonus.
