Check Engine Light On
#1
10-28-2012, 04:18 PM
Check Engine Light On
My check engine light has been on since I bought my car, it's a 2001 Monte SS. The codes are P0404 and P1404. Anyone had any luck with this issue? It's driving me crazy. Replaced the brake booster check valve.
#2
10-28-2012, 04:45 PM
Join Date: Jan 2011
Location: St.Louis , MO.
Posts: 7,523
The p0404-EGR circuit, range or performance problem
The p1404-EGR valve pintle position open
Take the EGR off and clean everything with some carb cleaner. (You might clean the throttle body too) Clean the MAF too with MAF cleaner.
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The p1404-EGR valve pintle position open
Take the EGR off and clean everything with some carb cleaner. (You might clean the throttle body too) Clean the MAF too with MAF cleaner.
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