Van starts nicely, runs briefly then shuts down. Does this several times until warm then stays running, but sluggishly. No codes given just 12 and 55. I have both rich white exhaust emissions and black, dry, sooty at the same time. 0xygen sensor is Ok. Could this be the problem. I turn key to run position and hear fuel pump running, it never stops. Does the same with key in accessory position and it still stays on. Never shuts itself off. I believe computer sees fuel pump staying energized and shuts down motor for safety. Is the computer suppose to de-energize fuel pump. What is suppose to happen when I turn key to run postion.
have the same problem?
Sunday, April 6th, 2014 AT 5:42 PM