I am getting the usual EGR flow is low. If I put a vacumm on the egr the engine almost stalls out. With the engine cold I am getting 14 volts to the VSV at all times. Once the engine is warm it still shows
14 volts. The only way I get it to drop is when I rev the engine real quick, the voltage drops and goes back up again. I had a vacumm gauge on the line that comes from the VSV to the EGR and when the engine is warm it shows no vacumm. When I rev the engine the vacumm jumps for a split second and then goes back to 0. I put a jumper on the E1 and TE1 on the data link, the engine would rev for a second then almost die out. I was going to take the VSV off to test it with a meter but, I can't get the dang thing off. I was going to just buy a new one and zip tie it to the firewall, but I can't afford to just buy parts since my 2002 ford explorer is going to need a new transmission. Right now I am bypassing the VSV by running a vacumm hose from the regulator right to the egr vavle. Will this work for emission testing as long as the engine is warm ? Sorry for the mixed up post, bottom line my questions are: Is the VSV normally open or closed. Should it have 14 volts to it when the engine is cold ? Can I just bypass the VSV and pass emissions ? Could it be the Map sensor ? or something else.Thanks again,