TOYOTA · GEN1 ECU

TOYOTA IQ GEN1 tuning files

TOYOTA IQ on the GEN1: matched, calibrated and delivered with care. Across the matched variants stock power runs from 68 to 99 HP. There are 19 distinct variants on file for this combination. Stage 1 and Stage 2 are the safe starting points for this platform. Every file is matched to the exact calibration on your vehicle and signed off by an operator.

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Available solutions

Solutions that apply to the GEN1 on this vehicle platform. The exact set depends on the specific engine and software version.

Stage 1 Stage 2

Engine variants & ECU software

19 distinct variants for the TOYOTA IQ on the GEN1 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 1300 99HP
Engine code: 1NR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 99 HP
ECU SW: 89663-74122
SW upgrade: 37412200
Calibration: 37412200

Variant 2

ECU

Catalog engine: 1300 99HP
Controller brand: DENSO
ECU: GEN1
Stock power: 99 HP
ECU SW: 89663-74190
SW upgrade: 37419000
Calibration: 37419000

Variant 3

ECU

Catalog engine: 1000 68HP
Engine code: 1KR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74031
ECU HW: 89661-xxxxx
SW upgrade: 37403100
Calibration: 37403100

Variant 4

ECU

Catalog engine: 1000 68HP
Engine code: 1KR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74034
SW upgrade: 37403400
Calibration: 37403400

Variant 5

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74040
SW upgrade: 37404000
Calibration: 37404000

Variant 6

ECU

Catalog engine: 1000 68HP
Engine code: 1KR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74041
ECU HW: 89661-xxxxx
SW upgrade: 37404100
Calibration: 37404100

Variant 7

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74041
SW upgrade: 37404100
Calibration: 37404100

Variant 8

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74042
SW upgrade: 37404200
Calibration: 37404200

Variant 9

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74044
SW upgrade: 37404400
Calibration: 37404400

Variant 10

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74060
SW upgrade: 37406000
Calibration: 37406000

Variant 11

ECU

Catalog engine: 1000 68HP
Engine code: 1KR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74061
ECU HW: 89661-xxxxx
SW upgrade: 37406100
Calibration: 37406100

Variant 12

ECU

Catalog engine: 1000 68HP
Engine code: 1KR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74062
SW upgrade: 37406200
Calibration: 37406200

Variant 13

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74080
SW upgrade: 37408000
Calibration: 37408000

Variant 14

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74090
SW upgrade: 37409000
Calibration: 37409000

Variant 15

ECU

Catalog engine: 1000 68HP
Engine code: 1KR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74140
ECU HW: 89661-xxxxx
SW upgrade: 37414000
Calibration: 37414000

Variant 16

ECU

Catalog engine: 1000 68HP
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74162
SW upgrade: 37416200
Calibration: 3741620A

Variant 17

ECU

Catalog engine: 1000 68HP
Engine code: 1NR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74180
SW upgrade: 37418000
Calibration: 37418000

Variant 18

ECU

Catalog engine: 1000 68HP
Engine code: 1NR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74181
SW upgrade: 37418100
Calibration: 37418100

Variant 19

ECU

Catalog engine: 1000 68HP
Engine code: 1KR-FE
Controller brand: DENSO
ECU: GEN1
Stock power: 68 HP
ECU SW: 89663-74410
ECU HW: 89661-xxxxx
SW upgrade: 37441000
Calibration: 37441000

Related vehicles

Other vehicles built on the GEN1 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the TOYOTA IQ on the GEN1?

Stage 1, Stage 2. The exact set depends on the specific engine and software version.

Do you cover the GEN1 ECU software on this model?

Yes — the TOYOTA IQ on the GEN1 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.