Question about 1998 Honda Civic

1 Answer

Low voltage fuel pump

Voltage at fuel pump when key is turned on starts at 10. and drops to zero immediately

Posted by on

  • Robert Jenkins Oct 20, 2013

    did not drop the tank. but day prior did minor tune up . cap, rotor,plugs. drove fine 15 - 20 miles then died

  • Robert Jenkins Oct 20, 2013

    fuel pump fuse is good. did tune up day before. cap, rotor, plugs. drove 15 - 20miles then died whileat intersection

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 30 Answers

Check out for fuel pump relay or loose contacts

Posted on Oct 20, 2013

Ad

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
autodr
  • 260 Answers

SOURCE: no voltage at fuel pump, 95 accord ex

ck all fuses? why did you drop tank down? if high mileage, poss. ign. switch problem. somewhat common.

Posted on Nov 15, 2008

  • 172 Answers

SOURCE: While driving the RPM &

Your problem sounds like a faulty ignition switch--I'm basing this on the fact that if you jiggle/hold the key in a certain way, your car will run. It should be relatively simple to swap it out.
Note that the ignition switch comes in 2 parts: (1) the lock cylinder for the key and (2) the electrical switch behind the lock cylinder. Your lock cylinder (usually, the more expensive part) is probably fine; the wear or loose wire is most likely on the electrical piece of the ignition switch.
If you're handy, this may be a self-repair--you'll need the car's key to help release the lock cylinder so you can get to the ignition switch. However, you may need to disassemble some or all of the steering column shrouding to get to the switch connectors (this will be an unplug / replace kind of item). Before doing any of that, make sure you disconnect the battery, as you don't want to accidentally cross a wire and end up with a face full of exploding air bag. If you take this to a garage, I suspect that this would not be a major repair in terms of cost.

Posted on May 09, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Replaced Fuel filter and fuel pump on my 2002 Ford Explorer Sport Trac. I have no fuel pressure. The voltage to the pump initially is there when I try to start but drops to 6 volts. What is the issue?


Make sure battery has a full charge and battery connections all good. Use a digital multi meter across battery posts, have helper turn key to crank, how far does the voltage drop? Generally it shouldn't drop below 10 volts, that spec is subjective, but, if the reading drops way down there, I'd check the battery and connections.
You could check voltage at inertia switch. That might give you an idea if the problem is before the inertia switch or after?

Nov 04, 2016 | 2002 Ford Explorer Sport Trac

1 Answer

1998 honda civic. fuel pump when key is turned on registers 10. volts then immediately drops to zero. did a tune up the day before. cap,rotor,plugs,oil and filter. drove 15-20 miles then died. checked fuel...


You should have close to 12 volts and then it drops to 0. That is the ecu priming the fuel system. Once you start yu should have 12v constant to the same wire. If your fuel pump is functioning ok, scan ur ecu for trouble codes. If there are no codes look into your coil and your icm in the distributor. Very commo for failure. Once the car dies, remove any spark plug wire on the plug side and put a plug into the end of it. Put the electrode of the plug close to a bolt on the valve cover and get someone to start the car, see if the plug is sparking. If it is you have a problem with fuel delivery, may not have injection pulse. You may also have a main relay failure

Oct 20, 2013 | 1998 Honda Civic

1 Answer

P1687 code


Code 1684 is not on the list for Chrysler cars, code 1687 is for the battery voltage dropping below 10 volts. This can occur if the voltage actually does drop below 10 or if the battery is disconnected from the computer.
It could be a wiring problem between the key switch and the main fuse box.

Jul 30, 2013 | Chrysler Cars & Trucks

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

1 Answer

My 2000 S10 with the 4.3l vortec is hard to start. I connected a pressure gauge to the schrader valve and the fuel pump builds 10psi when I turn on the key. If I cycle the key several times it will slowly...


Key on engine off pressure on your truck should be 60-66lbs. A fuel pump replacement is definitely in order, bad thing is it is a whole assembly.

Jul 24, 2010 | 2000 Chevrolet S-10

1 Answer

2003 chevy cavalier fuel pump will not kick on and the fuel pump is fine did replace the relay switch and still want start.


how do you know the fuel pump is fine. did you check for voltage at the pump. When you cycle the key you should have a reading for 3 seconds, then it should drop to zero. You only get a steady voltage if the engine is running. If you spary quick start or brake cleaner in the throttle body and it starts you will need check the above suggestion.. If you have a 3 second pulse then the pump failed

Apr 03, 2010 | 2004 Chevrolet Cavalier

2 Answers

Intermittent fuel pump engagement when turning key - 2001 Taurus


try cleaning the connector that goes to the fuel pump, sometimes they corrode on inside. If that does not fix, test the wires feeding fuel pump with a multi meter until the condition shows itself again, if voltage drops to zero or very low then wiring problem, if voltage is unchanged with problem and fuel pump is not working and connectors are all clean, try replacement of fuel pump.

Oct 09, 2009 | 2001 Ford Taurus

1 Answer

Fuel pump replace /swap out and voltge testing


the only time you have 12 vdc is when u crank the engine. Maybe the fuel pump relay is faulty the coil for the relay is not strong enough to hold the contacts, try swapping or changing a new relay,

Jul 27, 2009 | 1999 Pontiac Montana

1 Answer

Fuel pressure drops immediately to zero when engine is shut off.


I am not really familiar with the setup there but I'd be looking for a second relay to kick the pump on when cranking.

Jun 05, 2009 | 1991 Dodge Dynasty

1 Answer

My 98 S10, stop and don't start anymore. the compression test is ok,but no spark....and the fuel pump have no power...that means 12 volts is interrupted in some place....but where????


first check the condition of all circuit wiring for damage. Inspect all connection to the starter motor, solenoid, ignition switch, and battery, including all ground connections. Clean and tighten all connections as required
next
Check the voltage drop between the negative battery terminal and the vehicle frame by placing one lead of a voltmeter on the grounded battery post (not the cable clamp) and the other lead on the frame. Turn the ignition key to the START position and note the voltage drop.
Check the voltage drop between the positive battery terminal (not the cable clamp) and the starter terminal stud. Turn the ignition key to the START position and note the voltage drop.
Check the voltage drop between the starter housing and the frame. Turn the ignition key to the START position and note the voltage drop.
If the voltage drop in any of the above is more than 1 volt, there is excessive resistance in the circuit. Clean and retest all cables not within specification. Replace as necessary.
let me know what happens

Mar 06, 2009 | 1984 Chevrolet S-10

Not finding what you are looking for?
1998 Honda Civic Logo

Related Topics:

56 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

yadayada
yadayada

Level 3 Expert

76132 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Honda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...