Ever notice in your 80 Series 1FZ Land Cruiser that you have a rough and/or issues starting when the engine is hot and/or the truck is running too rich and/or you have a PO301-306 check engine light? Or maybe a PO172? Chances are your Fuel Pressure Regulator may have taking a dump on you. Chances are also pretty good that yours may be original to the vehicle. This is always overlooked when dealing with the drivability of our 80s. The idea time to do this is when you servicing your fuel injectors.
