2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 3 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
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eFlexFuel eFlexPro E85 Flex Fuel Conversion Kit (99-06 V8 Sierra 1500)Find parts that fit my vehicle
Item S547309
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M-F 8:30A-11P, Sat-Sun 8:30A-9P
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$999.00
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Product Information
Description, Q&A, Specs & Installation
Description
Unleash the full power with eFlexPro E85 Flex Fuel Conversion Kit. The eFlexPro is a patented E85 flex fuel conversion kit designed for technical auto enthusiasts who want more power and precision from their engine. With eFlexPro, you can safely dial in your Ethanol fuel corrections and fine tune fueling, creating custom fuel maps based on your vehicles modifications & performance.
- Drive on E85, Gasoline, or any blend of the two
- Fully Automatic Modes: No tuning, changing maps, or adjustments required
- Connect to two OEM or external engine sensors: MAF, MAP, TPS or WBO. Create your own E85 tunes with eFlexTuner PC software’s fully adjustable fuel maps.
- Choose between Eco, Dynamic, Sport, or Custom Driving Modes, adjust cold-start fueling, monitor Ethanol content and Duty Cycle, and more via smartphone with our eFlexApp
- “Under-the-hood” installation that doesn’t touch your factory ECU, OBD, or trigger a Check Engine Light
- We verify your vehicle’s E85 compatibility, including fuel injectors, fuel pump, fuel lines, and any modifications done
- Everything needed to run E85 & DIY install is included
- Make more power, lower operating temperatures, and reduce emissions on E85!
If you don’t like to compromise on performance, the eFlexPro will allow you to dial in your vehicle’s Ethanol fueling to maximize performance and efficiency, while running any blend of E85 and Gasoline in the tank.
eFlexTuner Main Features
- 3D Fuel Maps - With eFlexFuel's Pro models, fuel maps can be observed in the 3D graphics window. The view can be rotated freely and selected fuel map cells are highlighted over the 3D map. The color-coded fuel map makes analysis simple.
- Data Logging - All running parameters of the control unit can be captured and saved to a log file. Choose which parameters to display including date range. eFlexPro and eFlexMoto Pro log files can be analyzed in-depth with the eFlexTuner. Color-coding helps distinguish data points. (For example, the fuel mixture or the injector duty cycle.)
- Log File Analysis - eFlexPro and eFlexMoto Pro log files can be analyzed in depth with the eFlexTuner. Data can be taken from an entire session or a specific timespan. The data is color-coded, which helps to distinguish e.g., the fuel mixture or the injector duty cycle.
eFlexApp
- Monitor: ethanol content, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment
- Adjust:RPM based enrichment with driving mode selection (save up to three custom driving mode settings created with eFlexTuner software) & cold enrichment (save a custom setting created with eFlexTuner software)
- Check: device status
eFlexTuner
- Fuel map adjustment: eFlexTuner supports engine RPM and engine load-based fuel maps. With eFlexPro in load-based maps, a sensor of your choice (e.g., MAP, MAF, TPS, WBO) is used when adjusting the injection. The fuel map cell being used is displayed in real-time which simplifies the adjustment process. You can tune in real-time or make adjustments offline based on log files.
- Log file analysis: eFlexPro and eFlexMoto Pro log files can be analyzed in depth with the eFlexTuner. Data can be taken from an entire session or a specific timespan. The data is color-coded, which helps to distinguish e.g., the fuel mixture or the injector duty cycle.
- 3D fuel maps: With eFlexFuel's Pro models, fuel maps can be observed in the 3D graphics window. The view can be rotated freely and selected fuel map cells are highlighted over the 3D map. The color-coded fuel map makes analysis simple.
- Sensor linkage: Two external sensors (e.g. MAP, MAF, TPS, WBO) can be connected to the eFlexPro or eFlexMoto Pro control units. Sensor files created in the sensor editor can be linked.
- Cold start adjustment: With the versatile adjustments for cold starting, you can define your settings in three dif
Fitment:
- 1999 GMC Sierra 1500
- 2000 GMC Sierra 1500
- 2001 GMC Sierra 1500
- 2002 GMC Sierra 1500
- 2003 GMC Sierra 1500
- 2004 GMC Sierra 1500
- 2005 GMC Sierra 1500
- 2006 GMC Sierra 1500
eFlexFuel SK1223US
CA Residents:
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- Control unit (3” x 5 1/5” x 1” in)
- Ethanol sensor
- Wiring harness specific to your vehicle with an external temperature sensor
- Two additional analog inputs that plug in to the engine’s own sensors (MAP, MAF, TPS or WBO) - included only in eFlexPro
- Cable ties
- Male fuel injector connectors
- Fuel hose
- Fuel line quick connectors
- Fuel line disconnect tool
- Hose clamps
- Installation and User Guide
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Will It Fit My Sierra 1500
- 4.8L V8 - 99, 00, 01, 02, 03, 04, 05, 06
- 5.3L V8 - 99, 00, 01, 02, 03, 04, 05, 06
- 6.0L V8 - 01, 02, 03, 04, 05, 06
