The Tank
FRF Addict
This will be an on going thread because this is a huge subject.
DO
Tell the dealer if your truck has a tune. Especially if you have cams, supercharger, or other parts that need the tune to perform correctly and not wipe out your engine.
DON'T
This is for people who return to stock. Never let a dealer reflash your PCM once you have locked a tuner to your truck. Chances are it will be an updated strategy and then the tuner will not recognize it and you will have to get a new tune.
For people who can't return to stock. Same as above but instead it will erase your tune and may cost you your engine.
FAQ
How can the dealer if I've loaded a tune but return to stock before bring it to the dealer?
I will be honest I didn't know this until I was reading through a campaign message for 5.0 F-150s and Mustangs but when you load a tune it erases the Mode 6 data from the car. The IDS(factory scan tool) can read this info so can any scan tool with global OBD abilities. Ford wants all EB and 5.0 cars and trucks checked because of people pushing the engines. As far as Raptors go that may be up to the tech.
Why does my tuner want to know the type of gas I use?
First off don't answer that question with whatever is cheapest. Always use national name brand gas. For example I only run BP, Shell, and Sunoco in my truck. Different regions run different blends of gas durning different times of the year. The tuner needs to know to plan out how he is going to get the most power out of your vehicle. Another example is my truck was tuned for the fuel in NC but here in MI my truck runs horrible because of the difference in fuel and some environmental factors.
Should I get a bad gas tune?
Yes, without a doubt, now not every tuner does but this is if you have to stop at that 1 gas station in the middle of BFE. If you have an FI truck this would be the tune to run if you have to run 87 for whatever reason say out on the trail and the only thing anyone has is 87.
Should I let my tuner turn off my 5.4L truck's FFV abilities?
N/A Trucks no there is no good reason to do this. Truck will make changes for E-85 based on its owned factory parameters and your regular gas tune. Personal note I run both 93 and E-85 in my truck and have had zero problems with switching
FI Trucks Yes you should. E-85 is not as consistent as gas. So it may be E-85 one fill up and E-75 the next time. Because of the rich running nature of E-85 and the amount of demand for FI that is asking a lot for stock injectors and fuel pump.
DO
Tell the dealer if your truck has a tune. Especially if you have cams, supercharger, or other parts that need the tune to perform correctly and not wipe out your engine.
DON'T
This is for people who return to stock. Never let a dealer reflash your PCM once you have locked a tuner to your truck. Chances are it will be an updated strategy and then the tuner will not recognize it and you will have to get a new tune.
For people who can't return to stock. Same as above but instead it will erase your tune and may cost you your engine.
FAQ
How can the dealer if I've loaded a tune but return to stock before bring it to the dealer?
I will be honest I didn't know this until I was reading through a campaign message for 5.0 F-150s and Mustangs but when you load a tune it erases the Mode 6 data from the car. The IDS(factory scan tool) can read this info so can any scan tool with global OBD abilities. Ford wants all EB and 5.0 cars and trucks checked because of people pushing the engines. As far as Raptors go that may be up to the tech.
Why does my tuner want to know the type of gas I use?
First off don't answer that question with whatever is cheapest. Always use national name brand gas. For example I only run BP, Shell, and Sunoco in my truck. Different regions run different blends of gas durning different times of the year. The tuner needs to know to plan out how he is going to get the most power out of your vehicle. Another example is my truck was tuned for the fuel in NC but here in MI my truck runs horrible because of the difference in fuel and some environmental factors.
Should I get a bad gas tune?
Yes, without a doubt, now not every tuner does but this is if you have to stop at that 1 gas station in the middle of BFE. If you have an FI truck this would be the tune to run if you have to run 87 for whatever reason say out on the trail and the only thing anyone has is 87.
Should I let my tuner turn off my 5.4L truck's FFV abilities?
N/A Trucks no there is no good reason to do this. Truck will make changes for E-85 based on its owned factory parameters and your regular gas tune. Personal note I run both 93 and E-85 in my truck and have had zero problems with switching
FI Trucks Yes you should. E-85 is not as consistent as gas. So it may be E-85 one fill up and E-75 the next time. Because of the rich running nature of E-85 and the amount of demand for FI that is asking a lot for stock injectors and fuel pump.
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