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Insight Horizon Media

What is the PGM FI relay?

Author

Mia Smith

Published Feb 13, 2026

What is the PGM FI relay?

Description. The PGM-Fl main relay actually contains two individual relays. This relay is located at the left side (LHD) or right side (RHD) of the cowl. One relay is energized whenever the ignition is on which supplies the battery voltage to the ECM, power to the fuel injectors, and power for the second relay.

How much does a main relay cost?

The average main relay replacement cost is between $70 and $120, depending on what type of vehicle you drive and where you take it for repairs. The majority of that cost will come from troubleshooting fees and the cost of the relay itself.

What is PGM-FI Honda?

Programmed Fuel Injection, or PGMFI/PGM-FI, is the name given by Honda to a proprietary digital electronic fuel injection system for internal combustion engines with port injection. This system has been implemented on motorcycles, automobiles, and outboard motors.

What are the benefits of PGM-FI?

This feature helps provide outstanding power and driveability, with reduced emissions and better fuel efficiency36—plus easier maintenance and repair.

How much does it cost to fix a relay in a car?

The average starter relay replacement cost is between $50 and $75, depending on the car model and labor costs. The starter relay parts should cost you around $20, with the labor price at $30 to $55.

What are the signs of a bad relay?

Symptoms of a Bad or Failing Ignition Relay

  • Car suddenly stalls while operating. One of the most common symptoms of a failed ignition relay is a car that suddenly stalls while operating.
  • Car not starting. Another symptom of a faulty ignition relay is a no power condition.
  • Dead battery.
  • Burned relay.

Where is the fuel pump relay on a 2002 Honda Odyssey?

You will be able to find the fuel pump relay on the driver’s side left kick panel.

What happens if main relay is bad?

The engine will not start If the main relay is not supplying the engine computer with the power it needs, then the engine will not be able to crank and run the right way. Failing to get the main relay replaced will usually lead to the car being unusable.

What is the use of PGM-FI?

Programmed Fuel Injection, or PGMFI/PGM-FI, is the name given by Honda to a proprietary digital electronic fuel injection system for internal combustion engines with port injection. It is available since the early 1980s. This system has been implemented on motorcycles, automobiles, and outboard motors.