P0171 Mazda -

Question

what could be the cause for the combintion of code 0108and 0171

Answer 1

P0108 MAP (manifold absolute pressure circuit high input

P0171 Fuel trim lean Bank 1

Here is a vacuum hose for a Mazda that got disconnected, this caused a rough idle and a P0171,  When you have a circuit high code condition this is a disconnection to that sensor,