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I need the location of the fuel pump inertia switch for a 93 acura integra LS, with 1.8 ltr engine.

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There are two relays for the Hondas, one is energized when running the other is energized for 2 seconds to build pressure at the regulator when the key is turned on. If the motor stalls and the key, is still on, there is no power going to the pump. Therefore in that system I dont think they use a inertia switch. Without the motor running the PGM has no power till the key is cycled again.

Posted on Sep 28, 2010

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Acura doesn't use a fuel pump cutoff switch.

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My 92 Acura Integra is not starting could it be my transmission fluid level

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1989 f-250 inertia fuel shut-off switch switch location

This should be in the owner's manual. I found the below on, their repair help location:
An inertia switch is used as a safety device in the fuel system. The inertia switch is located in the cab, generally under the dashboard on the right side. It is designed to open the fuel pump power circuit in the event of a collision. The switch is reset by pushing each of 2 buttons on the switch simultaneously (some models use switches with only one reset button). The inertia switch should not be reset until the fuel system has been inspected for damage or leaks.
When the ignition switch is ON , it turns the EEC power relay ON . The EEC power relay provides power to the powertrain control module (PCM) and the control side of the fuel pump relay. Power for the fuel pump(s) is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse, current flows through the fuel pump relay and inertia switch to the fuel pump(s). The fuel pump relay is controlled by the PCM.
When the ignition switch is turned ON , the fuel pump(s) will operate. If the ignition switch is not turned to the START position the PCM will shut the fuel pump(s) OFF after 1 second. The PCM will operate the fuel pump(s) operate the fuel pump(s) when the ignition switch is turn to START position to provide fuel while cranking.
After the engine starts, the PCM will continue to operate the fuel pump(s) unless the engine stops, drops below 120 rpm or the inertia switch is tripped.

Dec 28, 2013 | 1989 Ford F 250

1 Answer

How can i get to the fuel pump on a 92 acura vigor?

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    The fuel pump on all models except the 1986-90 Integra, is located in the fuel tank. On the 1986-90 Integra the fuel pump is located under the rear of the vehicle, near the drivers side of the fuel tank.


    See Figure 1
    On all models, the fuel pump should run for about 2 seconds when the ignition is first turned ON . By removing the filler cap and listening at the filler, it should be possible to hear the pump run each time the ignition is switched ON . It will then stop again until the starter is activated.

    0900c1528004984f.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Fig. 1: Checking the fuel system pressure

    1. Disconnect the negative battery cable and remove the fuel filler cap.
    2. Relieve the fuel system pressure.
    3. Remove the service bolt and attach a fuel pressure gauge to the top of the fuel filter.
    4. Start the engine and measure the fuel pressure with the engine idling and vacuum hose to the pressure regulator disconnected;

    1986-1989 Integra-35-41 psi. (240-279 kPa) 1990-93 Integra-37-44 psi. (255-304 kPa) 1989-90 Legend-36-41 psi. (250-279 kPa) 1991-93 Legend-38-46 psi. (265-314 kPa) Vigor-43-50 psi. (300-350 kPa)
    1. Check to see that the pressure decreases when the vacuum hose is connected.
    2. If the pressure is higher than specifications, check for a pinched or clogged fuel return hose or faulty pressure regulator.
    3. If the pressure is lower than specifications, check for a clogged filter, defective pressure regulator or leakage in the fuel line.
    4. After inspection, remove the pressure gauge and install the service bolt with a new washer.


    1986-1989 Integra

    1. Disconnect the negative battery cable.
    2. Relieve the fuel system pressure.
    3. Raise and safely support the vehicle and remove the left rear wheel.
    4. Remove the fuel pump cover bolts and the cover.
    5. Remove the fuel pump mount bolts and the fuel pump with it's mount.
    6. Disconnect the fuel hoses and the electrical connectors.
    7. Installation is the reverse of removal. Use new sealing washers when connecting the fuel hoses. After the pump is installed, turn the ignition switch ON and OFF a number of times to pressurize the system and check for leaks.

    1990-93 Integra and Vigor
    See Figures 2 and 3
    1. On Integra, remove the rear seat and access panel and disconnect the wiring.
    2. Remove the fuel tank.
    3. Remove the pump flange mounting nuts and lift the pump out.
    4. Installation is the reverse of removal. Use new sealing washers when connecting the fuel hoses. After the pump is installed, turn the ignition switch ON and OFF a number of times to pressurize the system and check for leaks.

    0900c15280049850.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Fig. 2: Removing the fuel pump access cover-Legend and Vigor

    0900c15280049851.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Fig. 3: Removing the fuel pump assembly-Legend and Vigor

    1. Disconnect the negative battery cable.
    2. Relieve the fuel system pressure.
    3. Remove the maintenance access cover in the luggage area.
    4. Disconnect the fuel lines and the electrical connectors.
    5. Remove the fuel pump from the fuel tank.
    6. Installation is the reverse of removal. Use new sealing washers when connecting the fuel hoses. After the pump is installed, turn the ignition switch ON and OFF a number of times to pressurize the system and check for leaks.

    Nov 09, 2012 | 1992 Acura Vigor

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    1993 acura LS won't start when i turn the key

    It may be because the engine is not getting all the fuel it needs when the tank is low due to a faulty fuel pump or fuel injectors. More diagnostic tools for car @

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    Ford explorer 93 where is the fuel shut off switch

    For details regarding fuel pump and fuel pump switch click the link below:--- This switch is also called inertia switch For fuel pump reset switch location and diagram click this link below:--- ---------- This should help.Thanks.Helpmech.

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    Where is the A/C compressor RELAY located on my 1995 Acura integra LS ?

    The fuses in an Acura Integra are located under the dashboard on the driver's side. The under hood relay panel, which is the one that controls the air conditioning, is found on the right of the engine compartment next to the battery. Replace it with only another 10-amp fuse to avoid damaging the electrical system.

    Nov 28, 2010 | 1995 Acura Integra Coupe

    1 Answer

    What is the firing order for a 93 acura integra ls 1.8

    For the 1.7L VTEC DOHC AND the 1.8L DOHC:

    Firing Order:




    Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at!

    Mar 19, 2010 | 1993 Acura Integra Hatchback

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    Acura integra 1990 turns over fine but doesnt start

    for you to check if it is the fuel pump, see if there is fuel running out of the hose if you remove the fuel filter. Another is to directly connect the pump to the battery. If the pump works that way, then it could be a efi relay issue which is found underneath the dash or a wiring issue.

    Jul 10, 2009 | 1990 Acura Integra Hatchback

    2 Answers

    Main relay location

    The main relay is located behind left side of the dash and above and behind the fusebox and above the hood release.

    rate this solution fixya.

    Diagram below:-

    Acura Main Relay location and removal procedures.
    mainrelaylocationacura.gifrz-0063.jpgIntegra EFI Main Relay for:
    • Honda Civic/CRX/del Sol 1984-1995
    • 1986-89 INTEGRA
    • 1990-93 INTEGRA #39400-SH3-003 RELAY (RZ-0063)
    • 1986-90 LEGEND #39400-SH3-003 RELAY (RZ-0063) (RZ-0046)
    • 1991-93 LEGEND (rz-0105)
    • VIGOR (behind the left front kick panel)
    The main relay is located behind left side of the dash and above and behind the fusebox and above the hood release. The First generation Legend main relay location is between the steering column and the fuse box. It's deep in there. There was a little difficulty drawing the relay so it's actually very deep in there. There is a device (a relay) blocking the main relay. You will need to remove it to get a view of the main relay. The removal procedure is the about the same as the Accord's procedure.

    Legend, 96-98 Acura TL main relay
    Acura Integra 98-01 main relay location:
    Locating the main relay using your ears and fingers:

    1. Turn the ignition to ON. You should hear two clicks (a thousand of a second apart) under the left or right side of the dash board. One click is for the ECU/Injectors the other is for the fuel pump. At this moment the check engine light should come on.
    2. Listen carefully at the moment the clicks engage (usually somewhere underneath the dashboard.) Reach in and touch the main relay.
    3. 2 seconds later you should feel a click if the main relay is at least working or wait until it works. At this moment the check engine light should go out.
    4. Turn the ignition to start and you should feel a click, turn engine off you should feel another click.
    5. Most main relays should have seven terminals. Please check if the location is already listed below.

    How do I get the main relay out?
    Steps: See four ways below so you can get it out. First you have to reach high up in there and do all this with one hand and a flashlight.
    efiremoveinstall.gif A. Unbolt the bolt using a 10mm socket (picture A) or
    Ab. Unclip the clip from the steel tab and slide it apart (picture A) or
    B. Separate the steel tab from the plastic case (picture B) with a large flat screw driver jam and twist between the plastic case and the tab or
    C. Disconnect the negative battery terminal. Unclip two clips I pointed with two arrows (picture C, or below) with a small flat head screw driver or with a strong thumb and then yank it out (D.) This is the preferred choice by many. Mechanics prefer choice A and maybe B. See detailed relay circuit photo.

    May 24, 2009 | 1995 Acura Integra Coupe

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