Q. ECM, ECU, PCM, OBD1 and OBD2?
A. These acronyms are commonly used within the automotive industry: ECM=Electrical Control Module, ECU=Electrical Control Unit, PCM=Primary Control Module, OBD1=On Board Diagnostic (Early or 1st Version), OBD2=On Board Diagnostic (Late or 2nd Version).
Q. Do I need to reset ECM?
A. Resetting the ECM will shorten the time required to see improved milage and reduced emissions. If the ECM is not reset the computer requires a period of time to learn the improved fuel burn and adjust the amount of fuel supplied to the injector system. The vehicle's ECM comes from the factory with a set of default parameters that it uses to operate the engine. After the engine has been driven for a while, the parameters "zero in" on your normal driving habits and have a tendency to ignore new readings unless they fall outside the factory preset default parameters. You can reset the ECU in order to "wake-up" the ECM and cause it to re-learn how to operate the vehicle under these improved conditions.
Q. How can I reset the ECM?
A. On most vehicles equipped with ECM it is possible to reset the ECM by disconnecting the battery. Disconnect the negative terminal first, then the positive terminal. Leave the cable disconnected for at least 15 minutes. Reconnect the positive cable first, and then reconnect the negative cable. Please check with your owners manual prior for any special procedures that your vehicle may require resetting the ECM. You can also have your local repair shop or new car dealership reset the ECM. If you elect not to reset the ECM the improved milage and reduced emissions may take up to 2 or 3 tanks of treated fuel to see improvements.
Q. What if my fuel economy goes down?
A. A reduction in fuel economy during the first 2 or 3 tanks after adding Centron Fuel Additive is a positive sign that the Centron Fuel additive is cleaning up the engine. Centron Fuel Additive not only allows for more complete fuel burn but also cleans and removes fuel robbing Carbon deposits. An increase in fuel economy will soon follow. If the ECM is not reset the ECM is receiving changed emission data. During these changes the ECM will send default values and run a "Rich" mode causing the engine to burn more fuel. After using Centron Fuel additive the ECM will learn these new emission values and start to correct the "Rich" mode to a more economical ("lean") burn.
Q. Why does my engine have a rough idle after ECM reset?
A. Once the ECM has been reset, the ECM must learn how to efficiently operate the engine. During this new learning period (usually a day) the engine may appear to run "rough". This symptom will clear up by itself. Also the idle configuration parameters in the ECM may not have reset itself properly. After resetting the ECM, driving most vehicle will correct itself. Sometimes a rough idle condition will occur as the treated fuel cleans the back of the throttle body. This condition will correct itself within a day or two. If the rough idle continues, reset the ECM using the idle reset configuration in the OBD1 or OBD2 (the ECM reset with the OBD1 or OBD2 can be done at your local repair shop or at a new car dealership).
Q. What if my Check Engine Light comes on?
A. If prior to the Centron Fuel Additive treatment no trouble codes were found and the check engine light intermittently appears in most cases there is nothing to worry about. If prior to using Centron Fuel Additive trouble codes were found but ignored and wiped out by the ECM reset then the ECM has found the original problem again. Repair may be required. Documented cases have shown that Centron Fuel Additive will clear codes related to emission sensors needing to be replaced, i.e. Oxygen sensors, EGR, etc... Most sensors fail from carbon deposits and scale. Most emission sensors will last longer due to the reduced emission and reduction of Carbon. With regular use Centron Fuel Additive scale and Carbon deposits on these sensors will be clean and extend the usable life.
Q. What happens to my manufacturers warranty after the use of Centron Fuel Additive?
A. Your manufacturers warranty will not be voided with the proper dosage of Centron Fuel Additive. The "Magnuson Moss Warranty Act" forbids manufacturers from Voiding Manufacturers Warranty by adding a fuel additive not proven to be the cause of any damage! Centron Fuel Additive is a petroleum based product with no harmful chemicals and cannot cause any damage to your engine or fuel system! Centron Fuel Additive contains NO alcohol, methanol or isopropyl alcohol. Centron Fuel Additive is covered by Product Liability Insurance (7 Years without a claim!). Centron Fuel Additive is approved by Ford Motor Company, General Motors Corp., DaimlerChrysler, Cummins, Volvo, Mack, Caterpillar, others.
Q. Why is it important to know the kilometers per liter (KPL) before the install?
A. It provides a baseline or reference through which we can measure the performance of Centron Fuel Additive. In taking baseline MPG note any abnormal driving conditions including loads, traffic jams, type of road, idle times, rain, snow, low tyre air pressure, dirty air filter, etc. In comparing improved MPG also note any differences as noted above. All of these will affect the MPG.
Q. My kilometers per liter (KPL) only showed a slight improvement!
A. Some vehicles need 2 to 3 full tanks of fuel treated with Centron Fuel Additive to see improvements. Also note any abnormal driving conditions as stated above. Allow time for the ECM to recalibrate to the Improved Fuel Burn.
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