I keep hearing that our trucks run rich, meaning they inject more fuel than is necessary. I am aware of the URD computer modules which manually allow you to specify fuel mix etc. but what if all I want to do is lean out the fuel/air mix to run most efficiently fro mpg? Is there a RELIABLE chip or something that will lean it out a bit? I've also heard that messing with the fuel/air ratio will mess things up when dealing with altitude but it seems to me that if the ratio is just lowered then it would do fine. Our current ECU has a set ratio, and doesn't have issues with altitude changes, as long as the ratio remains constant.
I fully expect to hear "if you wanted gas mileage why did you buy a truck?" However, I love and need my truck, and I am willing to pay the price for the gas it sucks, but I am still interested in getting the most out of it.
I recently added a TRD cat-back exhaust, afe pro-dry filter, and an ecosystems fuel enhancer, all the while driving super conservative and going easy on the gas. I've noticed a legitimate power increase and throttle response, and I have gotten my mpg up to about 23 mpg (just highway). 21 going 80mph on highway and some in town driving and towing a snowmobile.
By all means this is great, but I would love to go for a bit more. Are there any options (chips) available that don't require a dyno test and all that jazz, just something simple to lean it out.
Thanks, and I've been searching for this a while... But If there is another thread feel free to direct me to it.