trouble with 2 codes
11-25-2010, 09:02 PM
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trouble with 2 codes I have a engine light on in my 99 SS it scans codes for p0410 and p0412 they are air system malfunction and air system swicthing valve a circuit malfunction. Any idea what I need to do fix these? ive had it reset but it comes back on within minutes of driving.
11-27-2010, 10:02 AM
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You can take it out fairly easily (do a search for egr/air removal) but you will need to have the code(s) disabled with a tune. Don't forget the exhaust manifold block-off plates 
