1.4T MPx bored throttle body.
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    1.4T MPx bored throttle body.

    This is a discussion on 1.4T MPx bored throttle body. within the Dodge Dart 1.4L MultiAir Turbo Engine Mods forums, part of the Dodge Dart 1.4L MultiAir Turbo category; Hello all, I was starting this thread to find out if there is anyone else who has a 2015 dart with a 1.4T engine also ...

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    Thread: 1.4T MPx bored throttle body.

    1. #1
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      1.4T MPx bored throttle body.

      Hello all, I was starting this thread to find out if there is anyone else who has a 2015 dart with a 1.4T engine also has the MPx bored throttle body...

      I bought one and installed it on Friday... Since then I have had a CEL P2173 "Throttle actuator control system: high air flow detected" along with a flashing tps light on my dashboard. All this topped with a higher idle... I do have alfaOBD, and did the tps relearn procedure.

      I need to hear from anyone with a 2015 or newer 1.4t as the ECUs are different. I will also be talking to MPx directly to see if I may have gotten a faulty throttle body.

      *UPDATE*

      I spoke with MPx directly, and they are sending me a new bored throttle body on the off chance that the one I originally received was faulty. If the new one fixes my problem, then we know what the issue was... IF not, than I will be working a little more closely with MPx to figure out why the 15s ECU does not allow for more airflow into the intake manifold without throwing a CEL. It seems to me that dodge may have altered the parameters on the ECU to have the values more concise and within a certain margin which would be smaller than the 12-13 ECUs.
      Last edited by Exitus04; 01-09-2019 at 08:14 AM.
      mikesdart23 likes this.
      FOR P0299 CODE: REPLACE YOUR BOOST SOLENOID EITHER VIA THE DEALER OR OEM REPLACEMENT...

      1 of 81 BUILT IDENTICAL

      Mods:
      - MPx Intercooler Pipes
      - Custom Built 3" SRI w/ K&N cone filter
      - Stock Wastegate Adjustment (8mm)
      - RRM Lightweight Pulley
      - DRP Race Dump
      - AEM Boost Gauge
      - CravenSpeed TB Spacer
      - ECS Tuning Catch Can on the line from the PCV to the intake manifold
      - 17"x 7" Konig Control Matte Black Rims
      - BF-Goodrich G-Force Sport COMP-2 tires
      - Black Bezel Headlight Swap
      - RRM Ultimate Stage 3 Tune
      - Drilled & Slotted Brake Rotors
      - Cravenspeed Short Throw Shifter
      - XenonSupply 6000K HID headlights
      - Progress Rear Sway Bar
      - Energy Bushings
      - Moog Front & Rear End Links
      - Deyeme Flex Rear Engine Mount
      - Deyeme CDV Delete
      - HPSI Silicone Vacuum Hose Kit
      - Red Plasti-Dipped Crosshair, Fog light accents & "Mouth" grille
      - AGS Assembly Removal
      - Bosch Alfa Romeo 4C CoilPacks
      - 27" x 7" x 2.5" Upgraded FMIC
      - RRM Hi-Flow Cat Downpipe
      - PTP Turbo Blanket
      - Heat Wrapped Cold Intercooler Pipe
      - Weathertech In-channel Air/rain Deflectors
      - Squadra Sportiva Carbon Nero S shift knob
      - Moog Front Wheel Bearings
      - Oracle Red Halos
      - Forge Atmospheric BOV
      SOON TO COME: MTD Cam, Exhaust Manifold, Turbo & Tune

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      Any updates? I'm 2013 but looking at a throttle body as well
      Exitus04 likes this.

    3. #3
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      Quote Originally Posted by qschlegel2 View Post
      Any updates? I'm 2013 but looking at a throttle body as well
      If you have a 2013 you will be fine. My 2015 would not cooperate with the throttle body correctly. Although, I did enjoy the bit of power it gave while I had it on!

      Sent using a rotary phone
      FOR P0299 CODE: REPLACE YOUR BOOST SOLENOID EITHER VIA THE DEALER OR OEM REPLACEMENT...

      1 of 81 BUILT IDENTICAL

      Mods:
      - MPx Intercooler Pipes
      - Custom Built 3" SRI w/ K&N cone filter
      - Stock Wastegate Adjustment (8mm)
      - RRM Lightweight Pulley
      - DRP Race Dump
      - AEM Boost Gauge
      - CravenSpeed TB Spacer
      - ECS Tuning Catch Can on the line from the PCV to the intake manifold
      - 17"x 7" Konig Control Matte Black Rims
      - BF-Goodrich G-Force Sport COMP-2 tires
      - Black Bezel Headlight Swap
      - RRM Ultimate Stage 3 Tune
      - Drilled & Slotted Brake Rotors
      - Cravenspeed Short Throw Shifter
      - XenonSupply 6000K HID headlights
      - Progress Rear Sway Bar
      - Energy Bushings
      - Moog Front & Rear End Links
      - Deyeme Flex Rear Engine Mount
      - Deyeme CDV Delete
      - HPSI Silicone Vacuum Hose Kit
      - Red Plasti-Dipped Crosshair, Fog light accents & "Mouth" grille
      - AGS Assembly Removal
      - Bosch Alfa Romeo 4C CoilPacks
      - 27" x 7" x 2.5" Upgraded FMIC
      - RRM Hi-Flow Cat Downpipe
      - PTP Turbo Blanket
      - Heat Wrapped Cold Intercooler Pipe
      - Weathertech In-channel Air/rain Deflectors
      - Squadra Sportiva Carbon Nero S shift knob
      - Moog Front Wheel Bearings
      - Oracle Red Halos
      - Forge Atmospheric BOV
      SOON TO COME: MTD Cam, Exhaust Manifold, Turbo & Tune

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    5. #4
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      13 ECU's are MAP based, No Mass Air, so ECU does not pay attention to air Flow per say, just Pressure.
      First mod ; Boost and AFR gauges
      -AGS Delete
      -Big FMIC
      -2 1/2" custom charge pipes
      -Custom (1 off) GTX2060 turbo
      -Custom 3" CAI

      My 40mpg summer DD http://www.youtube.com/watch?v=wambNdfnu5M

    6. #5
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      Quote Originally Posted by ig2mdThwifsDart View Post
      13 ECU's are MAP based, No Mass Air, so ECU does not pay attention to air Flow per say, just Pressure.
      That's strange... Cause the CEL I was getting said throttle body: too much airflow. So maybe they changed it on the 15s...

      Sent using a rotary phone
      FOR P0299 CODE: REPLACE YOUR BOOST SOLENOID EITHER VIA THE DEALER OR OEM REPLACEMENT...

      1 of 81 BUILT IDENTICAL

      Mods:
      - MPx Intercooler Pipes
      - Custom Built 3" SRI w/ K&N cone filter
      - Stock Wastegate Adjustment (8mm)
      - RRM Lightweight Pulley
      - DRP Race Dump
      - AEM Boost Gauge
      - CravenSpeed TB Spacer
      - ECS Tuning Catch Can on the line from the PCV to the intake manifold
      - 17"x 7" Konig Control Matte Black Rims
      - BF-Goodrich G-Force Sport COMP-2 tires
      - Black Bezel Headlight Swap
      - RRM Ultimate Stage 3 Tune
      - Drilled & Slotted Brake Rotors
      - Cravenspeed Short Throw Shifter
      - XenonSupply 6000K HID headlights
      - Progress Rear Sway Bar
      - Energy Bushings
      - Moog Front & Rear End Links
      - Deyeme Flex Rear Engine Mount
      - Deyeme CDV Delete
      - HPSI Silicone Vacuum Hose Kit
      - Red Plasti-Dipped Crosshair, Fog light accents & "Mouth" grille
      - AGS Assembly Removal
      - Bosch Alfa Romeo 4C CoilPacks
      - 27" x 7" x 2.5" Upgraded FMIC
      - RRM Hi-Flow Cat Downpipe
      - PTP Turbo Blanket
      - Heat Wrapped Cold Intercooler Pipe
      - Weathertech In-channel Air/rain Deflectors
      - Squadra Sportiva Carbon Nero S shift knob
      - Moog Front Wheel Bearings
      - Oracle Red Halos
      - Forge Atmospheric BOV
      SOON TO COME: MTD Cam, Exhaust Manifold, Turbo & Tune

    7. #6
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      did you do a relearn of the tb?
      buddy runs one on his 15 and i ran one on my 16 for awhile but honestly they arent worth it

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      Quote Originally Posted by Exitus04 View Post
      That's strange... Cause the CEL I was getting said throttle body: too much airflow. So maybe they changed it on the 15s...

      Sent using a rotary phone
      No, that makes sense, if they started monitoring MAF on 2014+ 1.4T ECUs, then a larger throttle body would allow a larger mass of air to flow through it, potentially triggering a CEL for too much airflow. Of course, since the throttle body is electronically-controlled and not directly linked by cable to your right foot, it's also possible that it is defective and opening incorrectly, especially since it is unlikely you would be the first person to have this problem.

    9. #8
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      There is no MAF on any Dart. They all use MAP.
      ig2mdThwifsDart likes this.
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    10. #9
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      Quote Originally Posted by alpinegreenneon View Post
      There is no MAF on any Dart. They all use MAP.
      That doesn't explain how the car was able to see the added airflow from the bored throttle body and trigger a CEL for too much airflow then.

      Sent using a rotary phone
      FOR P0299 CODE: REPLACE YOUR BOOST SOLENOID EITHER VIA THE DEALER OR OEM REPLACEMENT...

      1 of 81 BUILT IDENTICAL

      Mods:
      - MPx Intercooler Pipes
      - Custom Built 3" SRI w/ K&N cone filter
      - Stock Wastegate Adjustment (8mm)
      - RRM Lightweight Pulley
      - DRP Race Dump
      - AEM Boost Gauge
      - CravenSpeed TB Spacer
      - ECS Tuning Catch Can on the line from the PCV to the intake manifold
      - 17"x 7" Konig Control Matte Black Rims
      - BF-Goodrich G-Force Sport COMP-2 tires
      - Black Bezel Headlight Swap
      - RRM Ultimate Stage 3 Tune
      - Drilled & Slotted Brake Rotors
      - Cravenspeed Short Throw Shifter
      - XenonSupply 6000K HID headlights
      - Progress Rear Sway Bar
      - Energy Bushings
      - Moog Front & Rear End Links
      - Deyeme Flex Rear Engine Mount
      - Deyeme CDV Delete
      - HPSI Silicone Vacuum Hose Kit
      - Red Plasti-Dipped Crosshair, Fog light accents & "Mouth" grille
      - AGS Assembly Removal
      - Bosch Alfa Romeo 4C CoilPacks
      - 27" x 7" x 2.5" Upgraded FMIC
      - RRM Hi-Flow Cat Downpipe
      - PTP Turbo Blanket
      - Heat Wrapped Cold Intercooler Pipe
      - Weathertech In-channel Air/rain Deflectors
      - Squadra Sportiva Carbon Nero S shift knob
      - Moog Front Wheel Bearings
      - Oracle Red Halos
      - Forge Atmospheric BOV
      SOON TO COME: MTD Cam, Exhaust Manifold, Turbo & Tune

    11. #10
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      Quote Originally Posted by alpinegreenneon View Post
      There is no MAF on any Dart. They all use MAP.
      Very happy you posted this! I was shocked when @Exitus04 and others persisted that there Was a MAF sensor added to the Dart platform some years ago. Didn't make any sense to me, but they posted part #'s and such and even though I said that tuners couldn't work on both the 2013 and newer models if one was MAP based and 2014+ were MAF based, they insisted there was a MAF sensor added.

      So Thank you @alpinegreenneon for finally straightening that up, and for verifying that whatever becomes of my little turbo project, it will work on all 1.4T Darts!
      First mod ; Boost and AFR gauges
      -AGS Delete
      -Big FMIC
      -2 1/2" custom charge pipes
      -Custom (1 off) GTX2060 turbo
      -Custom 3" CAI

      My 40mpg summer DD http://www.youtube.com/watch?v=wambNdfnu5M

     

     
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