P0300 code
Buick Regal 1998, 185,000 miles, automatic
The vehicle loses power at full throttle, usually going up a steep hill and cuts off. It does not seem to cut off in any instance, although sometimes I get hesitation when hitting the gas, and then it goes away. I pulled the codes and got P0300.
Quote:
A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.
In addition to that, it can be hard to start immediately after it was turned off. Waiting a while seems to help and also hitting the gas pedal seems to help. I don't know if it's a part of the same problem or some other problem but it does not seem related to either starter or battery because both are 2 years old.
I cannot narrow it down to a fuel or an ignition problem.
A quick search suggests it could be a MAF sensor, or Crankshaft Position Sensor, or injectors, among other stuff.
Buick Regal 1998, 185,000 miles, automatic
The vehicle loses power at full throttle, usually going up a steep hill and cuts off. It does not seem to cut off in any instance, although sometimes I get hesitation when hitting the gas, and then it goes away. I pulled the codes and got P0300.
Quote:
A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.
In addition to that, it can be hard to start immediately after it was turned off. Waiting a while seems to help and also hitting the gas pedal seems to help. I don't know if it's a part of the same problem or some other problem but it does not seem related to either starter or battery because both are 2 years old.
I cannot narrow it down to a fuel or an ignition problem.
A quick search suggests it could be a MAF sensor, or Crankshaft Position Sensor, or injectors, among other stuff.
Last edited: