blakbear

I have a 2000 Z-28 and ever since I bought it used it has ran rich. I have changed the O2 sensors, but that did not help. I was told to buy a computer programer to lean out the engine. There is definantly a problem with the motor because the check engine light will not go out. Will some one give me some advice on what the problem may be?

blown 346

iTrader: (25)

If it is running rich you are going to have to get it tuned to lean out the air fuel ratio. Running rich can be a life saver if you are making big horspower to help save a stock bottom end. But running too rich can wash out your cylinder walls which will result in a motor rebuild.
I would go to autozone and have them get the code that is causing the light to come on, and see what it is. Then I would go and get your car on a dyno and check out the air fuel and get that set.