- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
To reset the PCM to render a more performance program has to be done by an expert. There is nothing substantial you can accomplish with having the means to reflash the PCM. There are many places that do this but I need to know if this is a Celebrity or a Camaro.
ECM. And no it does not. the fuel "table" is a timing calibration based on mechanical conditions, primarily valve timing and mechanical compression ratio. Simply reprogramming software doesnt change cam profiles or compression ratio and youd be doing more harm than good. The good news is most modern cars are smart enough to know if they are "pinging" or "knocking" from too low an octane fuel and make adjustments automatically. Go ahead and try going down 1 grade and if you dont hear noise by the 2nd tankful, you will be fine. Some engines are high compression or dont have sensors for detonation (knock sensors) and you wont get a change and must simply run the better fuels, but at worst, you finish a tank or 2 and switch back if the noises never gi away.