Keep in mind all scanners or the people who use them aren't created equal. I know the purpose of this forum is to help people save money by working on their own cars. But sometimes chasing down problems becomes expensive both in time and money.
After many days/weeks of unsuccessful diagnosis and the spending of hard earned cash, sometimes people wish they'd have just spent the money with a knowledgeable technician.
A tech with a professional scanner doesn't need a check engine light to flash or codes to be present to diagnose an engine problem. He'll be able to see the live data from the sensors being fed to the engine and interpret the data to isolate an issue. However, a good tech is expensive.
Also, some problems won't show up on a scanner, such as most of the fuel system. If there's a clogged filter or pump, the lines are kinked, the fuel pressure regulator is leaking, etc, none of this will show up because the computer can't see it.
I'm telling you this in case you get to a point were you've spent too much time and money looking for a problem. I'll try to continue helping you as much as I can.
Friday, February 11th, 2011 AT 1:17 AM