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1999 Toyota Tacoma SR5 Pickup 3.4L 4x4 - P0171
Posted to Technical Discussion Forum on 3/8/2007 8 Replies

Hello all.

A car came in and the engine light was on. I checked the engine light and received a code P0171 - System too lean bank 1. The customer has also mentioned that the car hesitates when the car accelerates, but I have not found an air leak and the TPS... Login to read more.

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