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First I recommend that you do an internet search for tuning your specific engine year and model sensor (s) on Google. So you installed the Acme Fuel Mizer, the Presto Mileage Maestro, Sparky plugs, and a few other devices all claiming up to a 30% increase in mileage, but you are only seeing maybe a 10% gain. It has become painfully obvious by observing that a comprehensive Guide to Tuning is desperately needed. Simply making combustion more efficient these days isn’t enough. The factory ECU is programmed for the factory hardware. Let’s break the tuning process down into bite-sized steps. A logical format makes the tuning process more like science and less like a mystical black art. Install Mileage Device The next step is to install your mileage device(s). Many people like to install upgrades one at a time to determine the overall effect each addition yields. Some like to just toss several on at a time. Consider the conditions needed for the ECU to accept lean fuel commands. If the engine is warmer than it actually is, the ECU will accept leaner. If the engine is under less of a load, the ECU will want to deliver less fuel. With your engine at operating temperature, check to see that the temp reading is close to the thermostat rating. If it is, proceed. If it isn’t, check your cooling system for contamination or stuck thermostat. This is why the ECU retards the timing. If you are tuning on the hottest day of the year, you may find out just how high of a signal you can generate before setting codes.

Tags : hottest day of the year, fuel mizer, google, logical format, hho, 10 gain, black art, engine model, ecu, sparky, day of the year, cooling system, thermostat, comprehensive guide, mileage
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