Question about 2008 Honda Civic

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Where is the pgm-fi main relay located on a 2008 Honda civic

Need to replace it because it's no good...

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The video above indicates a 99 civic, what about 08?

Posted on Jun 19, 2016

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  • Honda Master
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Wish I had an answer as good Johnny did.

Posted on Apr 13, 2015

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  • Honda Master
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I already answered this,watch the video, NO START HONDA PGM FI MAIN RELAY TEST

Posted on Apr 13, 2015

  • danoyachtcap
    danoyachtcap Apr 13, 2015

    Good answer Johnny

  •  johnny rebel
    johnny rebel Apr 13, 2015

    thank you,I strive to go that extra step

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2 Answers

DOES THE FUEL PUMP ON 96 HONDA CIVIC HAVE A FUSE OR RELAY SWITCH .


The fuel pump is controlled by the PGM-fi main relay. If there is no power to the fuel pump,check this relay

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Jan 14, 2016 | 1996 Honda Civic

1 Answer

I have a 1996 Acura 3.5 R.L. just put a new fuel pump in and it won't start. It turns over, but will not stay started.


Check your main fuel relay.



Fuel Supply System


PGM-FI Main Relay


Description


This PGM-FI main relay is located behind the dashboard


lower cover. The PGM-FI main relay actually contains


two individual relays. One relay is energized whenever


the ignition is on. It supplies battery voltage to the PCM,


power to the fuel injectors, and power for the second


relay. The second relay is energized for 2 seconds when


the ignition is switched on, and when the engine is running.


It supplies power to the fuel pump.


PGM-FI


MAIN RELAY



FUEL


PUMP


RELAY


Relay Testing


NOTE: If the engine starts and continues to run, the PGMFI


main relay is OK.


1. Remove the PGM-FI main relay.


2. Attach the battery positive terminal to the No. 3*


terminal and the battery negative terminal to the


No. 2* terminal of the PGM-FI main relay. Then


check for continuity between the No. 5* terminal and


No. 2 terminal of the PGM-FI main relay.


• If there is continuity, go on to step 3.


• If there is no continuity, replace the relay and


retest.



*: 8P CONNECTOR


To FUEL PUMP


3. Attach the battery positive terminal to the No. 4 terminal


and the battery negative terminal to the No.


7* terminal of the PGM-FI main relay. Then check


that there is continuity between the No. 3 terminal


and No. 1 terminal of the PGM-FI main relay.


• If there is continuity, go on to step 4.


• If there is no continuity, replace the relay and


retest.


4. Attach the battery positive terminal to the No. 1 terminal


and battery negative terminal to the No. 2*


terminal of the PGM-FI main relay. Then check that


there is continuity between the No. 5* terminal and


No. 2 terminal of the PGM-FI main relay.


• If there is continuity, the relay is OK;


If the fuel pump still does not work, go to Harness


Testing on the next page.


• If there is no continuity, replace the relay and


retest.



To PCM CONNECTOR


TERMINAL A4


To ST. SWITCH


To GROUND


To IGN. 1 To BAT


To PCM


CONNECTOR TERMINALS


A13 and B1


FUEL PUMP


RESISTOR


FUEL PUMP

Sep 18, 2013 | 1996 Acura TL Series

1 Answer

Intermittent Start


Your Civic has two PGM-FI main relays. The diagram I have does not indicate a physical location but if you trace the WHT/BLK lead from the underhood fuse/relay box you will find them

May 06, 2013 | 2001 Honda Civic LX

1 Answer

I need the to know which fuse goes to What in my Honda fit 2008


PGM-FI main relay 1 (FI MAIN) is energized whenever the ignition switch is ON (II) to supply battery voltage to the ECM/PCM, power to the injectors, and power for PGM-FI main relay 2 (FUEL PUMP). PGM-FI main relay 2 (FUEL PUMP) is energized to supply power to the fuel pump for 2 seconds when the ignition switch is turned ON (II), and when the engine is cranking or running.

May 08, 2011 | 2009 Honda Fit

1 Answer

Car cranks but dose not start, there is no power to distributator or fuel pump


I suspect the at this point, the main relay is defective. This relay controls power to fuel and spark circuits.

The PGM-FI Main Relay is actually comprised of two individual internal relays. When the ignition switch is initially turned ON , the Powertrain Control Module (PCM) supplies ground to the PGM-FI Main Relay. This ground triggers one of the PGM-FI internal relays that sends battery voltage to the fuel pump for two seconds to pressurize the fuel system.
When the engine is running the PCM supplies a continuous ground to the PGM-FI Main Relay. The supplied ground keeps the relay in the "closed" position providing electrical current to the fuel pump, keeping the fuel loop pressurized while the engine runs.
If the engine is not running with the ignition on, the PCM cuts the ground to the PGM-FI Main Relay, causing the relay to "open" and stop the electric current flow to the fuel pump. As mentioned previously, if the engine is not running, the PCM will only supply ground to the PGM-FI Main Relay for two seconds when the ignition switch is initially switched to the ON position.
The PGM-FI Main Relay also supplies electrical power to the Idle Air Control (IAC) Valve and to the fuel injectors.

TESTING


If the engine starts and continues to run, the PGM-FI Main Relay is working and does not need to be replaced.
  1. Locate and remove the relay.

On some models of the Civic and Civic del Sol it is located to the left of the steering column under the dash. Many later models position it either near the passenger right side kick panel under the dash or by the driver left side kick panel up under the dash.
  1. Attach the battery positive terminal to the No. 2 terminal.
  2. And the battery negative terminal to the No. 1 terminal.
  3. Check for continuity between terminal No. 5 and 4.
  4. If there is no continuity, replace the relay and retest

Aug 05, 2010 | Honda Civic Cars & Trucks

1 Answer

My honda civic 1998 model fuel pump failed and I changed it


The PGM Main relay is outboard of the glove box. You can see it if you get the glove box out of the way, but to remove it, you need to pop the triangular shaped plastic trim off of the end of the passenger side of your dash. The relay is held in place with one 10mm bolt and the electrical connector.

Oct 20, 2009 | 1998 Honda Civic

2 Answers

Buzzing fuel pump


sounds like the fuel pump relay is stuck on. find the relay and replace it. hope this helps mike

Jun 16, 2009 | Acura TL Cars & Trucks

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