I just had my dealer complete an ECM adjustment following a Mass Airflow Sensor replacement. I was taking it in for a transmission replacement and coincidentally had a issue of it stalling after starting. They did the above and it seemed fine for a day or two. Unsure that is connected, but now I have it cranking and will only start roughly, if I press on the accelerator. I have about 170k on it and have never had the fuel pump changed. I am not getting any codes. I hooked a pressure gauge up to the rail and get an initial reading of 60psi and then a slow steady drop. Drooped to about 20psi and then seemed to stay there. It seems to not always drop that far and now doing it again, it shows about 48psi. I checked my gauges to be sure the fittings are all tight.
Am I safe thinking it is a pump and starting there? I have no problem tacking that job. I am thinking it would be rather preventative if nothing else due to age. Other suggestions/tests to run?
Am I safe thinking it is a pump and starting there? I have no problem tacking that job. I am thinking it would be rather preventative if nothing else due to age. Other suggestions/tests to run?
