No Powertrain DTC Present?
Hi. I have a 2005 cobalt with a little over 100,000 miles on it that has been giving me problems for about the last 6 months. I've had to replace the crankshaft position sensor, upstream o2, fuel pump, fuel pump fuse, spark plugs & the fuel filter. After all this it ran great until yesterday. I tried to crank it and no go. It turns over and it threw a code but when I hooked up the reader all it says is "No Powertrain DTC's or Freeze Frame Data is presently stored in vehicle's computer". Does this mean my PCM is toast?