ALPHA TA8903SN IC17 Replacment

TA8903SN Replacement for IC17. This component is partially used to activate the fuel pump. If you are experiencing a delay in your fuel pump priming and the capacitors have already been replaced, this may be the issue.

If just your fuel pump is not priming but you have no CEL, replacing STA413 may be necessary.

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Restore your Honda OBD1 ECU the right way with a true IC17 replacement—not a bypass or imitation chip. Designed to replicate the original TA8903SN functionality, this module actively monitors critical ECU signals, voltage rails, and protection circuits to ensure proper operation and help identify underlying ECU faults.

Unlike bypass boards that simply force the ECU to power up while disabling important protection features, this replacement provides genuine diagnostic behavior with built-in status indicators, allowing you to troubleshoot with confidence rather than masking the real issue.

Ideal for repairing Honda OBD1 ECUs, including P28, P30, P72, P06, and other compatible models, this module helps protect critical ECU components while restoring the intended IC17 functionality.

Key Features:

True replacement for the original TA8903SN (IC17)

Monitors critical ECU signals and voltage rails

Maintains proper protection and fault detection

Built-in status indicators for easier diagnostics

No bypasses or fake replacement circuitry

Compatible with Honda OBD1 ECUs including P28, P30, P72, P06, and similar models