2015 Lincoln- low fuel pressure

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Posted to Technical Discussion Forum on 11/18/2025 14 Replies

I have a 2015 Lincoln MKS Base, 3.7L 6Cyl GAS Naturally Aspirated. VIN:[...][...]

It is running lean under all conditions. I discovered the fuel pressure at idle is 30 psi. It has DTCs P0171 & P0174. Fuel pressure specification is 55 psi. If I bypass the fue... Login to read more.

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Vehicle Data

2015 Lincoln MKS 3.7L

VIN	1LNHL9DK4F
Engine	3.7 L
Trans	6-speed Automatic (Electronic)

Vehicle Data

2015 Lincoln MKS 3.7L

VIN	1LNHL9DK4F
Engine	3.7 L
Trans	6-speed Automatic (Electronic)

14 Replies Received (View Replies)

14 Replies Received (Hide Replies)

Vehicle Data

2015 Lincoln MKS 3.7L

Vehicle Data

2015 Lincoln MKS 3.7L