In the diagrams down below I have included the factory diagnostic troubleshooting guide for Direct Trouble Code (DTC) P0171. I see no listing for DTC P1133 listed for your vehicle. If you double check the DTC number for me I will be happy to look it up for you. The guide for DTC P0171 is pretty straight forward. I would definitely check for vacuum leaks. By vacuum leaks, what I mean is any unmetered, or any air leaking into the intake air system after the Mass Air Flow sensor (MAF). A good way to do this is to get a propane torch and crack it open on the lowest setting, making sure not to light it. You just want the propane coming out of it. With the engine running, run the propane torch along the air intake duct, throttle body, intake manifold, vacuum hoses, EVAP hoses, paying special attention to Positive Crankcase Ventilation hoses, EGR inlet, and the intake manifold, both inside the valley and outside. Anywhere there is a leak when the torch passes by it the engine rpm's will pick up as the propane will get sucked into the system. This will take care of this DTC. I have also included a link below for you to go to:
Please get back to us with what you are able to find out.
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Tuesday, June 25th, 2019 AT 8:01 PM