What is the purpose of reference voltage? We typically will have two or three wire sensors. Reference voltage that I'm talking about today is typically on a three wire sensor and in a typical situation what we do is we send five volts out from the computer.

How to diagnose an engine misfire. Welcome to Mercie J Auto Care , where compassion and craftsmanship come together, I'm Rick Smith. So first of all, when we go to diagnose a misfire it can be helpful sometimes to just pull the codes because a P030_ like a P0301, P0302, P0303 etc. can help us know which cylinder is misfiring.

Why does my car battery keep dying? Welcome to Mercie J, where compassion and craftsmanship come together, I'm Rick Smith. So let's understand our system just a little bit. The car battery is primarily there to start the vehicle, it's also sort of a balancer for the electrical system.

What does it mean if my car is pulling to one side? Welcome to Mercie J where compassion and craftsmanship come together, I'm Rick Smith. Now first of all let's clarify what pulling is. You have to ignore the position of the steering wheel. A steering wheel that's off center is not the same as pulling. So regardless of where the steering wheel is, if I let go of the steering wheel and I'm cruising down the road, does my car drift one way or the other?

I often get asked would it be better if I took my car to the dealership?

Ellen was walking through the shop and she asked me what's up with the orange cone under the hood?