I have a complete loss of turbo boost. Had a broken nipple on the check valve between the vac pump and brake booster, has been replaced. Replaced a very frayed vac line between the n75 and turbo gate activator. Have good vac level up to the valve, and if i bypass it, connecting the vac line straight to the turbo activator, i get boost just fine. How do I check the n75 valve to make sure it's the problem component instead of some other component causing bad signal.
Also, would a speed sensor cause this problem? One of my speed sensors IS bad (I don't remember the trouble code right off). It's not the one that feeds the speedo, its one of the other two.
Thanks
Also, would a speed sensor cause this problem? One of my speed sensors IS bad (I don't remember the trouble code right off). It's not the one that feeds the speedo, its one of the other two.
Thanks