What is PGM relay?
PGM-Fl Main Relay. Doscription The PGM-Fl main relav actuallv contains two individual rerays. This relay is located at the lett side 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.
What is engine PGM-FI fault?
The PGM-FI light just indicates the computer detected a problem, a sensor failed to report data or something seems ‘out of bounds’ for the computer (ECU) to process. The PGM-FI light is reset during the start sequence but the stored code is not erased.
What does PGM-FI do?
Programmed Fuel Injection (PGM-FI) (Select models) This feature helps provide outstanding power and driveability, with reduced emissions and better fuel efficiency36—plus easier maintenance and repair.
Is 85 or 86 ground on a relay?
85 will be used to ground your relay, while 86 will be connected to the switchable power. 87 and 87a will be connected to your controlled accessories that you wish to turn on and off with your relay.
Do you need a relay for LED lights?
A relay is an electrical switch that lets a low current circuit control a high current circuit such as a large LED light bar. If you are using a light pod that does not have a very large amp draw, you may not need a relay switch, but if you are using a larger LED light bar, they are a must have.
What happens if you don’t ground a relay?
The excess heat will melt the box, making it impossible to have your light bars on without replacing it. One wire that comes out of the relay box is the ground wire. If it is, the wire will not make a solid contact with the metal, and it would be as if you did not have a ground wire attached.
How much voltage is needed to change a relay?
Most are rated at 12v, usually a range of 12-15v. Actual voltage required to operate the relay is usually a little under 12v. That is why your accessories can still operate with the key on and engine off, usually making actual voltage a bit under 12v with lights on.
How many volts does it take to turn on a relay?
The nominal voltage of a 12V relay is 12V, so 80% of this is 12 x 0.8 = 9.6V. So in theory, this relay should activate at 9.6V.
Where is relay used?
Relays are used wherever it is necessary to control a high power or high voltage circuit with a low power circuit, especially when galvanic isolation is desirable.