Ran 93 octane, turbos whistle really loud, and got 12.5 mpg

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rjdelp7

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Fill your tank until pump clicks. Drive it. Then re-fill until it clicks. Divide the miles by the gallons. That is the true MPG. The trip 'computer' isn't always accurate. You stated you do a 'fair amount of sitting'. That kills your MPGs. If turbos are on boost, more fuel is burning. The motor is Eco or Boost, not both. Most engines should perform better on Premium. My 2011 Mustang 5.0l gets 18mpg+ and 2001 Lincoln DOHC 4.6l also gets 18mpg+. Both only run on only premium. My 5000lb Expedition gets 12mpg, no matter what fuel or how I drive it. Cleaning sensors or disconnecting the battery is a waste of time.
 

16plati

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. Cleaning sensors or disconnecting the battery is a waste of time.

Wrong! I’ve done this countless times, usually ever oil change the 3 MAP sensors are removed and cleaned and a KAM reset is done. Instant mpg increase. Again, you dont have an EB expedition so stop yappin your mouth about shit you don’t deal with
 

rjdelp7

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Wrong! I’ve done this countless times, usually ever oil change the 3 MAP sensors are removed and cleaned and a KAM reset is done. Instant mpg increase. Again, you dont have an EB expedition so stop yappin your mouth about shit you don’t deal with
Can you explain how oil and dirt are getting past your air filter? I believe the sensor you are referring is a MAF(mass air flow), not MAP. It should be on your air duct, going into the intake. I cleaned mine, for the first time this year and it still was clean. It had no effect on MPG or performance. I have owned 20 vehicles and never had to do KAM reset. I never even heard of it. Most mechanics recommend using a memory saver. It supplies power, when removing the battery. This is to prevent the computer, from going nuts and having to re-learn its idle trim. I think your advice is bad/wrong. Moreover, this isn't some 'alien' engine. It basically the same as the 3.5l(and other Ford engines), just with a couple of turbos and related parts.
 
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bobmbx

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Can you explain how oil and dirt are getting past your air filter? I believe the sensor you are referring is a MAF(mass air flow), not MAP. It should be on your air duct, going into the intake. I cleaned mine, for the first time this year and it still was clean. It had no effect on MPG or performance. I have owned 20 vehicles and never had to do KAM reset. I never even heard of it. Most mechanics recommend using a memory saver. It supplies power, when removing the battery. This is to prevent the computer, from going nuts and having to re-learn its idle trim. I thinks your advice is bad/wrong. Moreover, this isn't some 'alien' engine. It basically the same as the 3.5l(and other Ford engines), just with a couple of turbos and related parts.
Plati is correct. Our engines use MAPs, several of them. They are Manifold Absolute Pressure sensors.

And resetting the ECM/PCM is an old trick to improve performance. Thats one of the first things that should be done after purchasing a used car. Re-learning idle trims is a great way to start diagnosing performance issues, btw. Tranny shift points, throttle maps, idle speed control, etc... all can be reset to factory default specs, as it should be when troubleshooting.

BTW, if you've ever changed a battery and had the cables disconnected for 5-10 minutes, you have reset the PCM/ECM.
 

16plati

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Can you explain how oil and dirt are getting past your air filter? I believe the sensor you are referring is a MAF(mass air flow), not MAP. It should be on your air duct, going into the intake. I cleaned mine, for the first time this year and it still was clean. It had no effect on MPG or performance. I have owned 20 vehicles and never had to do KAM reset. I never even heard of it. Most mechanics recommend using a memory saver. It supplies power, when removing the battery. This is to prevent the computer, from going nuts and having to re-learn its idle trim. I think your advice is bad/wrong. Moreover, this isn't some 'alien' engine. It basically the same as the 3.5l(and other Ford engines), just with a couple of turbos and related parts.
Ford went away from MAF and now has MAP. Manifold absolute pressure. Three of them on the ecoboost (IAT- Intake Air temperature, a MAP at the TB, and one above the manifold. Only the one on the manifold was ever dirty prior to my catch can. All three are always white now. Read up and get out from u set your rock, smart ass. Don’t say shit you can’t back up:flipthebird:


9E141A90-DFCA-44DC-A267-F6E9B460145E.jpeg 0CBC9809-DA61-4C6F-B119-DA1C39FB1BD5.jpeg
 

16plati

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Plati is correct. Our engines use MAPs, several of them. They are Manifold Absolute Pressure sensors.

And resetting the ECM/PCM is an old trick to improve performance. Thats one of the first things that should be done after purchasing a used car. Re-learning idle trims is a great way to start diagnosing performance issues, btw. Tranny shift points, throttle maps, idle speed control, etc... all can be reset to factory default specs, as it should be when troubleshooting.

BTW, if you've ever changed a battery and had the cables disconnected for 5-10 minutes, you have reset the PCM/ECM.
As for resetting pcm, it takes 45 minutes, DCing the battery and turning on your headlights to drain the capacitors that keep the KAM stored.

 

rjdelp7

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Plati is correct. Our engines use MAPs, several of them. They are Manifold Absolute Pressure sensors.

And resetting the ECM/PCM is an old trick to improve performance. Thats one of the first things that should be done after purchasing a used car. Re-learning idle trims is a great way to start diagnosing performance issues, btw. Tranny shift points, throttle maps, idle speed control, etc... all can be reset to factory default specs, as it should be when troubleshooting.

BTW, if you've ever changed a battery and had the cables disconnected for 5-10 minutes, you have reset the PCM/ECM.
OK then, were are the MAP located and how are they getting fouled, with dirt and oil? How does a vehicle get out of factory specs and still run? There is a specific procedure for a re-learn. Its not a simple as disconnecting the battery. The shop I go to, claims you may trigger a CEL, when disconnecting the battery. The computer re-learning, the I/M are reset. I got the dreaded PO430, 1 day after disconnecting my battery.
 

JExpedition07

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I’m not sure why ford went back to older tech with the map sensors on some models. Measuring vacuum etc. They use MAF currently on many engines as well, two being the 6.2 gas and 6.7 PS.
 
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16plati

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OK then, were are the MAP located and how are they getting fouled, with dirt and oil? How does a vehicle get out of factory specs and still run? There is a specific procedure for a re-learn. Its not a simple as disconnecting the battery. The shop I go to, claims you may trigger a CEL, when disconnecting the battery. The computer re-learning, the I/M are reset. I got the dreaded PO430, 1 day after disconnecting my battery.
It’s called blow by, direct result from the ****** direct injection engines. Thts why ppl get catch cans. This solved 100% of the issue for me. All 3 sensors look brand new now every oil change and the can catches a ton of gunk
 

TuxedoBlack

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It’s called blow by, direct result from the ****** direct injection engines. Thts why ppl get catch cans. This solved 100% of the issue for me. All 3 sensors look brand new now every oil change and the can catches a ton of gunk

plati did how ling have you had the catchcan on there. did you do any cleaning other than the sensors?


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