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2011 Lacross P0193 engine power reduced

Fireman Bill

Buick Newbie
Buick Ownership
Hi all. I had a rough running engine the other morning and this morning it flashed the engine light and reduced engine power message. I parked it until this evening. I opened the hood and see some chewed insulation pieces from mice. I hooked up my scanner and P 0193 along with misfire codes appeared. The misfire codes I’d assume are from the P0193 fuel pressure issue. I haven’t done any hands on yet. Where is the Fuel rail pressure sensors located? Anyone have any advise? I’ll go as far as I can on it and hopefully find the issue.....
Thanks for any advise........
Pedal Commander