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Check Engine Light

2K views 1 reply 2 participants last post by  Johnny Mullet 
#1 ·
My check engine light came on and I went to Auto-zone. The code is P0401 Exhaust Gas Recirculation Flow Insufficient Detected - I spent $46.00 on a new EGR Valve. I put it in with the battery disconnected, positive terminal only and light went out for about 30 minutes and came back on. Engine runs fine.

Guy at Auto-zone told me you have to take off the negative terminal only instead of positive on the battery for 15 minutes as computer as a battery back up and wont reset. I did that it re-set ran about 30 minutes. Light comes on again. Still runs fine.

Any other ideas?

Thanks

Russ
 
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