Any ideas where to start looking for connections? Has anyone ever expericened this before? I have codes for the mass air sensor but I know the car will run if the sensor is t hooked up. Found that out aftrr installin a new one forgot to plug it back in. I have code 157 and 158. I guess I'll start taking off all the plastic wire covers and start looking for grounds and shorts. Any ideas how to fix loose conections in harnesses? Thanks