Question about Honda Accord

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Hi i have a 00 accord 1.8 136hp vii (cg) i have being having intermittent problems, i have replaced.. fuel filter, fuel pump, fuel relay switch, spark plugs, but to no avail! the car still sputters a lot and does'nt stall when kept around 80kph but sometimes just shuts down!

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Hi and welcome to FixYa!

This problem is common on all honda cars. As a first course of action, I strongly suggest that you clean the IACV (idle air control valve) by using a carburetor cleaner. The IACV has strainer and mostly clogged by dirt. If it's blocked the engine may stall and may have irregularities on acceleration.

The IACV is located on the throttle body secured by two bolts. You will need to remove the connector first before removal.

Hope this helps and thank you for using FixYa! Have a good one!

Posted on Mar 11, 2011

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1991 honda accord starts intermittently. When it doesn't the gas guage goes below E. Gets spark, no fuel. Already changed main relay.


Hey man if you already changed out the relay i would try changing your fuel pump and sending unit that should stop both of your problems.

Aug 16, 2012 | 1991 Honda Accord

1 Answer

2000 mercury grand marquis 4.6 fuel


Voltage drop test the electrical circuit , do know how to do automotive electrical testing . Lose connection , resistance in the circuit , lose ground Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia Testing Electric Fuel Pump Problems with Voltage Drop Test

Feb 27, 2017 | 2000 Mercury Grand Marquis

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2000 mercury grand marquis 4.6 Intermittent problem. 35,000. miles. Problem engine died several times wile driving. Also after car is parked from a drive will not start. Found that the fuel pump is not...


I'd have to test when problem is ongoing. When you first turn on key, no crank, you should hear the pump run for a few seconds then stop. For initial prime, the computer doesn't need rpm signal. Engine cranking, the computer needs to see rpm signal or it won't ground the fuel pump relay. W/o rpm signal, no spark at the plugs and no fuel injector pulse. I know your talking about fuel, but, when problem is ongoing, check spark and fuel injector pulse, engine cranking.
Intermittent problems are a pain, have to test when problem is ongoing.
mercury fuel pump-i4kx0gxqalhdz4ok10irisui-5-0.jpg

Feb 27, 2017 | 2006 Mercury Grand Marquis

1 Answer

97 honda accord SE not getting power to fuel pump I drove my car over to my mothers house shut it off and went out to leave and my car would not start checked all the fuses and the relays then realized...


Three things you may want to check out next in your problem diagnosis:

1. You may actually be getting power to the fuel pump through the functioning fuel pump relay and the good fuse, but the fuel pump itself may have failed - you can check by disconnecting the fuel pump electrical connector, and checking for battery voltage when the ignition key is turned to "Start".

2. The ignition switch itself may have failed, since it has been recalled on this vehicle. The recalled defect may have caused a failure of the switch to deliver power to the fuel pump at startup. Here's a list of all the recalls for the 1997 Accord:

Recall - Ignition Switch Replacement 02-031 09/24/2002
Recall 02V120000: Ignition Switch Defect NHTSA02V120000 05/01/2002
Recall 99V069000: Lower Ball Joint Replacement NHTSA99V069000 04/20/1999
Recall 98V231000: Air Conditioner Wire Harness Chafing NHTSA98V231000 09/18/1998
Campaign - Front Balancer Shaft Oil Seal Replacement 00-073 03/13/2001
Recall - A/C Wiring Harness Routing 98-072 10/13/1998

3. Testing the PGM-FI main relay is fairly involved (and not detailed in the information below). You may want to re-post your query asking for the testing & diagnosis procedure for this component alone.

Below find the 1997 Honda Accord manual entry for diagnosis & testing of the fuel pump electrical circuit.

TESTING

Fuel Pump Circuit

If you suspect a problem with the fuel pump, listen for the pump to operate by removing the fuel fill cap and checking to see if the pump can be heard running during the first two seconds after the ignition key is turned to the ON position. You should hear the fuel pump motor run.

If the fuel pump can be heard running, the fuel pump's electrical circuit is likely to be OK and the fuel pump operating pressure should be checked as outlined later in this section.

Once the engine has started, the fuel pump operation is controlled by the Powertrain Control Module (PCM) via the PGM-FI Main Relay. The fuel pump receives its electrical power from the PGM-FI Main Relay, which is triggered for two seconds when the ignition switch is initially turned to the on position.

After the initial two-second startup signal is received, the PGM-FI Main Relay is controlled by the PCM. Because the fuel pump receives its power from the PGM-FI Main Relay, a problem with the ignition switch, PCM, or electrical wiring may not allow battery voltage to reach the pump.

To check the fuel pump wiring proceed as follows:

1. Make sure the ignition switch is in the OFF position.
2. Locate and detach the fuel pump electrical connector at the fuel tank.
3. You may have to remove the floor access panel. For specific details, see the fuel pump removal procedure in this section.
4. Fuel pump access is limited on some 1996-97 models of the Accord and may require you to work under the vehicle. Perform the following steps if that is the situation:

a. Raise the vehicle and safely support it on suitable jackstands.
b. Remove the protective cover from the fuel tank fuel hoses.

5. Detach the fuel pump electrical connector.
6. Connect a suitable Voltmeter between the fuel pump positive terminal of the electrical connector and a known good chassis ground.
7. Hold the electrical connector of the PGM-FI Main Relay so the wire side of the female terminals is visible and install a jumper wire between terminal Nos. 4 and 5.
8. When the ignition switch is turned ON , battery voltage should be present at the fuel pump electrical connector.
9. If the battery voltage is present, check the fuel pump's ground.
10. If the ground is "OK", check the fuel pump.
11. If battery voltage is not present, trace the wiring harness and check the cause for an open or shorted circuit.
12. If all wiring checks out, test the fuel pressure, as outlined later in this section.

Fuel Pump Pressure

The fuel pressure should be checked at the fuel rail or at the fuel feed line for the fuel rail. The fuel pressure is checked with the engine started, thus the fuel pressure gauge must not interrupt the flow of fuel to the fuel rail and the fuel injectors.

To attach a fuel pressure gauge to the pressurized fuel loop requires the use of an adapter that is capable of safely withstanding the fuel system fuel pressure.

WARNING
Checking the fuel system fuel pressure requires the use of an in-line fuel pressure gauge with the engine running. Do not perform this check if suitable test equipment and fuel fittings are not available. The fuel system operates under pressure, if any fuel leakage is noticed while performing this check STOP immediately and do not continue until the source of the leak is resolved. Do not perform this test near sources of heat, spark, or flames. This test must be performed in a well-ventilated area.


CAUTION
The fuel injection system remains under pressure, even after the engine has been turned OFF . The fuel system pressure MUST BE relieved before disconnecting any fuel lines. Failure to do so may result in fire and/or personal injury.

To check the fuel system pressure proceed as follows:

1. Remove the fuel filler cap and relieve the residual fuel pressure. For specific details, refer to the relieving fuel pressure coverage in this section.
2. Attach a suitable fuel pressure gauge to the fuel injection fuel loop as follows:

Models such as the 1998-00 Accord have a fuel pulsation dampener which must be removed in place of the banjo bolt for testing.

1996-97 Accord with 4-cylinder engines and 1996-00 Prelude: Remove the service/banjo bolt from the end of the fuel rail. Install the fuel pressure gauge using a suitable fitting to temporarily substitute for the banjo bolt or in place of the service bolt that will allow fuel to be supplied to the gauge and the fuel rail.

1996-97 Accord with V6 engines: Remove the banjo bolt from the fuel filter outlet and install the pressure gauge using a suitable fitting to temporarily substitute for the banjo bolt and supply fuel to the gauge and the fuel rail.

1998-00 Accord: Remove the fuel pulsation damper from the end of the fuel rail and install a suitable fuel pressure gauge in its place.

3. Remove and plug the vacuum line for the fuel pressure regulator located near the end of the fuel rail.
4. Start the engine and note the fuel pressure. With the pressure regulator vacuum hose disconnected and plugged, the fuel pressure should register as follows:

2.2L engines: 38-46 psi (260-310 kPa)

2.3L engines: 47-54 psi (320-370 kPa)

2.7L engines: 40-47 psi (270-320 kPa)

3.0L engines: 41-48 psi (280-330 kPa)

If the engine won't start, turn on the ignition switch ON, wait two seconds, then turn off the ignition switch OFF. Turn the ignition switch back ON again and read the fuel pressure.

5. If the fuel pressure is higher than specification check for a pinched or restricted fuel return hose or line.

6. If the fuel pressure is lower than the specification check for a damaged fuel pressure regulator, clogged fuel filter, fuel feed line or a leak in the fuel feed line. If the fuel pressure regulator, fuel feed lines, and fuel pump are OK, replace the fuel pump and fuel filter.

The fuel pressure regulator testing procedures are located later in this section.

Once the test is complete, perform the following:

7. Carefully remove the fuel pressure gauge and test fittings.
8. Install the removed fasteners using new sealing washers.
9. Install the fuel filler cap.
10. Start the engine and check for any fuel leaks, and repair as necessary.

Oct 16, 2011 | 1997 Honda Accord

1 Answer

I replaced fuel pump but it still will not start sometimes


Check Fuel Pump relay under dash. It will be intermittent from time to time. I went through same problem, First I replaced fuel Pump, Then I found that the relay was the main problem with car.

Dec 27, 2010 | 1992 Honda Accord

1 Answer

Replaced the fuel pump & main relay. but the


First of all, why do you think it is fuel at all, since it could be the ignition?
Second is that if the car shuts down, how do you know it is not simply a clogged fuel filter?
A bad pressure return regulator can blow out fuel pumps by causing the pressure to be so high the pump over works itself.

I suggest you need better data.
A fuel pressure gauge would be nice.
You could improvise one out of a cheap mechanical oil pressure gauge. You could also run some long thin wires to the fuel pump relay output or even to the pump itself, and hang a little LED off the dash as a temporary diagnostic indicator light.
To catch an intermittent, you need constant data.

Apr 20, 2010 | 1992 Honda Accord

1 Answer

I have a 1992 Lincoln Mark vii lsc. Fuel pump problem!


This sounds like the PCM has taken a turn for the worst. The pcm relay sends power to the fuel relay for 2 seconds to prime the fuel system just before start up.
Then the pcm ungrouds the signal for a prove out.

Oct 22, 2009 | 1990 Lincoln Mark VII

1 Answer

Intermittent fuel pump relay, need help I have a 1992 Honda Accord LX. I'm not gettng fuel pumped all the time. I suspect an intermittent fuel pump relay. The fuel pump was replaced 4 months ago.


try tapping on it a bit or banging on it, but before you do, let me tell you that you need a new fuel pump or the hose could have something in it blocking flow or something.

Jul 11, 2009 | 1992 Honda Accord

2 Answers

Intermittent starting problem and now it will not start.I cannot hear fuel pump. ive been told to replace main fuel relay. I replaced ignition switch a year ago.


Your starting problem may be a clogged filter or a bad fuel pump. You are not having problems with the engine cranking I assume.

Jun 21, 2009 | 1992 Acura Legend

2 Answers

Is there a fuel pump relay switch?


Its called a Main Fuel Pump Relay.. It controls Fuel Pump, Starter, Ignition.. and Like 12 things.. Get one And I guarantee that'll fix it.. It looks like a cell phone on the upper inside of the dash.. about 52 Bucks from the dealer.. Try it

Mar 09, 2009 | 1991 Honda Accord

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