89661-0CG10 89663-0CD40 Denso GEN1 original ECU file – Toyota Tundra 5.7 381hp

SW numbers next to 89663-0CD40

The closest SW numbers in the archive, by spelling. They are other files, not equivalents. Worth a look when a digit may have been misread.

Other numbers for the Toyota Tundra 5.7 381hp

79 files cover exactly this car and engine, on Denso GEN1 (45), Denso, type not listed (22), Denso D76F019XXX (11). If your ECU reads differently from this page, 12 of the others:

This ECU and car in figures

Denso GEN1: 2 753 files, 2 709 SW numbers, 331 with a map pack. Makes: Toyota (2 169), Lexus (425), Hino (113), Toyota BUS (38). Most listed: Toyota Hilux (322), Toyota Land Cruiser (279), Lexus IS (171), Toyota Corolla (145).

Toyota Tundra: 103 files. ECU types: Denso GEN1 (64), Denso, type not listed (27), Denso D76F019XXX (11), Denso RX703200 (1). Engine codes: 3UR-FE (34), 3UR-FBE (20), 2UZ-FE (4), 1GR-FE (3).

Engine code 3UR-FE: 58 files, on Denso, type not listed (28), Denso GEN1 (28), Denso D76F019XXX (1). Listed for Toyota Tundra (34), Lexus LX (13), Toyota Sequoia (6), Toyota Land Cruiser (5).

914 of the 914 files here with HW 8966… are Denso units.

5 122 of the 5 122 files here with SW 8966… are Denso units.