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Operation

E85 Flex Fuel Software: E85 Ethanol Tune by ECU Family

Fuel calibration for running the engine on E85 (ethanol blend).

Upload your file freeSupported ECUs
CarConstruction
Free pre-checkECU identification and applicable operations without credits
Credit only on successNo charge if it fails
Byte-level checksUnverified results are labelled
PrimeChecksumbuilt-in checksum engine

Benefits

What you get with E85 Flex-Fuel

Supported vehicle types

CarConstruction

Credits

A module job costs 1 credit (any number of modules in one job); Stage 1 costs 2 credits for cars/bikes and 3 credits for trucks, tractors and construction machines. With Stage 1, each module you add costs +1 credit (Stage 1 + 1 module: 3 credits for cars/bikes, 4 credits for trucks, tractors and construction machines). No credit is charged for a job without a result.

Delivery rule

The solution is verified at byte level as it is applied; if one of your selected operations cannot be applied, the file is not delivered and the credit is refunded.

Chiptuning guide: what is E85 Flex-Fuel? →

Featured

Featured ECU families

DensoDENSO (ALL)BoschME17.9.20VDOGPEC2BoschME17.9.52ACDelcoE78BoschMEVD17/MED17 (ALL)BoschMG1CS201Denso112500-1XXXDenso275700-1201/3410/3411/3412BoschME7.7.0BoschME7.1.1ACDelcoE38

Brands

Brands with E85 Flex-Fuel solutions

Tap a brand to open its ECUs in the list.

SUBARUVOLVOLEXUSBMWHONDASMARTJAGUARCHEVROLETJEEPBENTLEYTOYOTADSCARRAROABARTHALFA ROMEOCHRYSLERCADILLACCITROEN

Flow

How it works

Upload

Upload your original ECU file

Select

The system detects the ECU from the file and enables only genuinely applicable solutions

Process

The solution is verified at hex level and applied

Download & Checksum

Credit is charged only on successful delivery. The checksum is corrected in a separate tab with the built-in PrimeChecksum.

ECU families

All ECU families supporting this operation

Brand + ECU

E85 Flex-Fuel by brand and ECU

Tap a brand: the ECU pages of that brand with a verified solution for this operation open.

Car

ABARTH E85 Flex-Fuel
ABARTH BOSCH ME17.3.0 E85 Flex-Fuel
ALFA ROMEO E85 Flex-Fuel
ALFA ROMEO BOSCH ME7.9.10 E85 Flex-FuelALFA ROMEO CONTINENTAL SIEMENS-VDO GPEC4LM E85 Flex-Fuel
BENTLEY E85 Flex-Fuel
BENTLEY BOSCH ME7.1.1 E85 Flex-Fuel
BMW E85 Flex-Fuel
BMW BOSCH MEVD17/MED17 (ALL) E85 Flex-FuelBMW BOSCH MG1CS201 E85 Flex-FuelBMW BOSCH MEV9/ME9+ E85 Flex-Fuel
BUICK E85 Flex-Fuel
BUICK DELCO E78 E85 Flex-Fuel
CADILLAC E85 Flex-Fuel
CADILLAC DELCO E38 E85 Flex-FuelCADILLAC DELCO E92 E85 Flex-Fuel
CHEVROLET E85 Flex-Fuel
CHEVROLET DELCO E78 E85 Flex-FuelCHEVROLET CONTINENTAL SIEMENS-VDO D52 E85 Flex-FuelCHEVROLET DELCO E38 E85 Flex-FuelCHEVROLET DELCO E67 E85 Flex-FuelCHEVROLET DELCO E92A E85 Flex-FuelCHEVROLET: all ECUs
CHRYSLER E85 Flex-Fuel
CHRYSLER BOSCH ME2.8 E85 Flex-FuelCHRYSLER MOTOROLA NGC3 E85 Flex-FuelCHRYSLER CONTINENTAL SIEMENS-VDO GPEC2A E85 Flex-Fuel
CITROEN E85 Flex-Fuel
CITROEN VALEO J34P E85 Flex-FuelCITROEN VALEO V46.11 E85 Flex-Fuel
DODGE E85 Flex-Fuel
DODGE MARELLI 9GF E85 Flex-Fuel
DS E85 Flex-Fuel
DS CONTINENTAL VD46-VD46.1 E85 Flex-FuelDS BOSCH MEV17.4.2 E85 Flex-FuelDS BOSCH MEVD17.4.2 E85 Flex-FuelDS BOSCH MG1CS042 E85 Flex-FuelDS BOSCH MED17.4.2 E85 Flex-FuelDS: all ECUs
FIAT E85 Flex-Fuel
FIAT MARELLI IAW5SF4 E85 Flex-FuelFIAT MARELLI 9GF E85 Flex-Fuel
HONDA E85 Flex-Fuel
HONDA KEIHIN 37820-RAH E85 Flex-FuelHONDA KEIHIN R18A2 E85 Flex-Fuel
JAGUAR E85 Flex-Fuel
JAGUAR DENSO (ALL) E85 Flex-FuelJAGUAR DENSO MB279700-9XXX E85 Flex-FuelJAGUAR DENSO P5.0SC E85 Flex-Fuel
JEEP E85 Flex-Fuel
JEEP VDO GPEC2 E85 Flex-FuelJEEP MOTOROLA NGC5 E85 Flex-FuelJEEP VDO GPEC4 E85 Flex-FuelJEEP MOTOROLA NGC4 E85 Flex-FuelJEEP CONTINENTAL SIEMENS-VDO GPEC4LM E85 Flex-Fuel
LEXUS E85 Flex-Fuel
LEXUS DENSO (ALL) E85 Flex-Fuel
MINI E85 Flex-Fuel
MINI SIEMENS-EMS2 (SIRIUS 32) E85 Flex-Fuel
PEUGEOT E85 Flex-Fuel
PEUGEOT BOSCH ME7.4.5 E85 Flex-FuelPEUGEOT VALEO V46.11 E85 Flex-Fuel
RENAULT E85 Flex-Fuel
RENAULT SIEMENS SIM32 E85 Flex-FuelRENAULT VALEO V50 E85 Flex-Fuel
SEAT E85 Flex-Fuel
SEAT CONTINENTAL SIMOS 7.1 E85 Flex-Fuel
SMART E85 Flex-Fuel
SMART BOSCH ME17.9.20 E85 Flex-FuelSMART BOSCH ME7.7.0 E85 Flex-Fuel
SUBARU E85 Flex-Fuel
SUBARU DENSO (ALL) E85 Flex-Fuel
TOYOTA E85 Flex-Fuel
TOYOTA BOSCH ME17.9.52 E85 Flex-FuelTOYOTA BOSCH ME7.9.51/ME7.9.52 E85 Flex-FuelTOYOTA BOSCH ME17.9.53 E85 Flex-Fuel
VOLKSWAGEN E85 Flex-Fuel
VOLKSWAGEN CONTINENTAL SIMOS 7 E85 Flex-Fuel
VOLVO E85 Flex-Fuel
VOLVO DENSO (ALL) E85 Flex-Fuel

Operations

Other operations

Stage 1Typical gains in power and torque with a livelier throttle response.Stage 2Advanced calibration matched to hardware upgrades such as exhaust or intercooler.Vmax OffThe factory speed limiter is removed in the software.Pop & BangCalibration that adds exhaust pops and bangs on overrun.

Apply this operation yourself in Studio

In EcuPrime Studio, Ready solutions measures a verified recipe for your file's ECU family (if one exists) against your file and applies the one you choose; or edit the maps yourself in Hex, Table, 2D and 3D view.

See the ECU remapping software →

Help

Frequently asked questions

How is a E85 Flex-Fuel file made?

How it works: upload your original ECU file → the system detects the ECU from the file and enables only genuinely applicable solutions → the solution is verified at hex level and applied → credit is charged only on successful delivery. The checksum is corrected in a separate tab with the built-in PrimeChecksum.

Which ECUs support E85 Flex-Fuel?

The full list of ECU families with verified solutions is on this page by vehicle type.

Start today

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