Solving Nissan Performance & Check Engine Light Issues

Solving Nissan Performance & Check Engine Light Issues

While we don’t see the amount of coil failures we used to, it seems that the P0171 system lean code is more prevalent than it was in the past. The ECU sets this code when the system has to add more fuel than expected to maintain the desired air/fuel level.

Nissan-Sentra ImportCar contributor Bob Dowie recently had a late-model Sentra towed in to his shop with a no-crank complaint.

This was the first time they were faced with a smart-key-equipped Nissan that did nothing when the start button was pushed.

His first step on any diagnosis was to put the enhanced scanner on the vehicle and perform a full scan.


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