Admin and Sup Mod keeping the peace
Since you didn't specify the year of your D21, if it has the V6 engine , then it must be older then 1996. That being the case, it has a fuel pressure regulator at the fuel rail and a fuel filter in the engine compartment. Tee-in a temporary fuel pressure gauge between the fuel filter and the fuel rail. The readings at idle should be as follows:I have yet to check the pressure at the injectors. I’ll definitely check that. Will do. I’ll definitely check those both. Yeah the pump cost a bit. Wanted to make sure before replacing it. Thanks so much for the reply.
- with vacuum hose connected to the fuel pressure regulator: 34 psi
- with vacuum hose disconnected from the fuel pressure regulator: 43 psi