Question on Blackwing
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Intermediate
Joined: Jun 2004
Posts: 45
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From: Blawnox PA
Question on Blackwing
I recently installed a Blackwing air intake in my '99. Upon starting it after the installation I noticed that if I rev the engine up to around 3,000rpm I'm getting a popping noise from the exhaust, almost like there is back pressure being built up because of the increased air flow. At normal idle it seems OK. By the way, it is a stock exhaust. Is this normal, or something that goes away once the computer resets itself?
Otherwise the exhaust does sound different, more throaty.
Otherwise the exhaust does sound different, more throaty.
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Mine never did that, but drive the car for about 50-75 miles, let the computer relearn the air flow and see if it disappears.
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Joined: Oct 2000
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From: Monticello MN
This should do it. Or you can try this:C5 Idle Relearn Procedure
Purpose
This page basically shows you step by step how to do an Idle Relearn. You would want to do this if you have done any intake modifications. If you do not do this, you may have hesitation or other issues.
Tools Required
None.
Do the Job
Follow these procedures EXACTLY or you will have to start from scratch.
Insert key into ignition and turn to the "On" position but, DO NOT START THE ENGINE.
Pop open the engine fuse block box cover and remove the two 10amp fuses from position numbers 16 & 23.
Your DIC will now display "check" messages for ABS, etc...
Turn ignition to the "Off" position.
Re-insert both 10amp fuses for positions 16 & 23.
Start your engine
Allow engine coolant temperature to reach a minimum of 176 degrees F and run at this minimum temperature for at least 5 minutes.
Shut down engine
Let rest for a minimum of 30 seconds.
Restart engine - check for DIC error codes (there should be none).
Drive car for a minimum of 30 miles at varying rpm settings and speeds. PCM will now re-learn and adjust for the new air flow and air temperature at the intake.
There's also a third way, but try this one first.
Ed
