Hello everyone. Having active code P087. Went through all questions and answers and nothing fits my case. Recent head gasket repairs. Truck drove over a month and no issues. Then I put fuel system cleaner and started getting code P087. Maybe just coincidence. Since then replaced both fuel pumps, fuel pump in a tank and filter. Replaced fuel rail pressure sensor and low fuel sensor on drivers side behind the wheel. Still same thing.
Note. Code does not pop always. Sometimes have performance restricted message. Starts fine. If you start and drive right away then no issues. If start and let idle most of the time it will throw a code but once shut off engine and restart again it will run fine. Wonder if something like a faulty battery or charging system can cause this. No issues with battery or alter ator as of now.
Any idea.
Note. Code does not pop always. Sometimes have performance restricted message. Starts fine. If you start and drive right away then no issues. If start and let idle most of the time it will throw a code but once shut off engine and restart again it will run fine. Wonder if something like a faulty battery or charging system can cause this. No issues with battery or alter ator as of now.
Any idea.