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Help regarding noise and AFR

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Old Apr 15, 2007 | 02:32 PM
  #1  
98intrigue's Avatar
98intrigue
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Default Help regarding noise and AFR

My car has:
Crawford plenum
Turbonetics non-cat single turbo
reverse y-pipe with HKS Hi-Power exhaust.

My problem:
I was showing my car at HIN Nightshift yesterday. I came with too much gas, so I was driving around trying to waste gas. During a 2nd-3rd gear pull, the intake pipe managed to come off where it meets the TB. I put that back on and everything was fine. Just before pulling into HIN Nightshift yesterday, I started to hear this weird noise coming from the front of the car. If I could describe it, I would say it was an exhaust leak...but what do I know? I would think that would cause my car to not reach the 8psi that it is tuned to. Prior to the noise, my Innovate Wideband would read 14.7-15.2 at idle. It now reads 15.3-15.9 at idle. At WOT, the car still dips into the mid 10s and it still holds 8psi.

Any ideas?
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Old Apr 15, 2007 | 04:32 PM
  #2  
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MIAPLAYA
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From: Escondido
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Originally Posted by 98intrigue
My car has:
Crawford plenum
Turbonetics non-cat single turbo
reverse y-pipe with HKS Hi-Power exhaust.

My problem:
I was showing my car at HIN Nightshift yesterday. I came with too much gas, so I was driving around trying to waste gas. During a 2nd-3rd gear pull, the intake pipe managed to come off where it meets the TB. I put that back on and everything was fine. Just before pulling into HIN Nightshift yesterday, I started to hear this weird noise coming from the front of the car. If I could describe it, I would say it was an exhaust leak...but what do I know? I would think that would cause my car to not reach the 8psi that it is tuned to. Prior to the noise, my Innovate Wideband would read 14.7-15.2 at idle. It now reads 15.3-15.9 at idle. At WOT, the car still dips into the mid 10s and it still holds 8psi.

Any ideas?
Could be an exhaust leak for sure. Its hard to figure out noise issues over the internet though. You may want to get the car in the air and just make sure al the connections are tight...
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Old Apr 15, 2007 | 10:43 PM
  #3  
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tonyg35
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From: new england
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check the driver side header o2 plug
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