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Discussion Starter · #1 ·
My car starting running like crap ever since I change my water pump. the car is loosing power. one thing I found this morning that the shop that change my water pump added green coolant and water over Dex-Cool . now my engine light come on reading code P0171. the guy at autozone told that " the PCM has determined during testing, the fuel system for bank 1 was too lean". what does that mean?. I want to know it is something that's going to cost me or is it a small job.

remember that the car was running perfect until I changed my water pump. I was thinking of re flushing the coolant system to see if the problem still exist.
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