OBD II Code reader yields the two following codes:
1. P0401 - Exhaust Gas Recirculation Flow Insufficient Detected
2. P1504 - Intake Air Control Circuit Malfunction
The weather here is bitterly cold. So I am waiting a few days for warmer weather when I can work on the car. I suspect something simple like a leaking or broken vacuum hose or perhaps the PCV is clogged.
Any ideas from those who have had or experienced this problem before.
Your experience/thoughts on this matter are greatly appreciated.
Thanking you in advance for your time and effort.
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Thursday, January 7th, 2010 AT 5:59 PM