Question about 1994 Honda Civic

3 Answers

No spark? Anywhere to check?

I have no spark so I tested the ignition coil and no spark there. Then I test the negative on the ignition control module and the test light lights up and stay on when crank so I suspect it is the coil that went bad. I bought a new coil but there is still no spark coming out of the coil. Any place I need to check? By the way, I took the ICM to test at local store and it passed.

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3 Answers

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  • Master
  • 1,554 Answers

There is one wire that feeds it the spark its likely broken inside
its just a small 12volt pulse but easy to find as its only single wire

Posted on May 03, 2015

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  • Honda Expert
  • 554 Answers

There is no definitive test on the ICM, or igniter. It sends the pulse to the coil to fire. If your input wire is powered, it is most likely your problem, unless the terminals fit loose. You can check for pulse with an old dwell meter, sometimes you can see a test light flicker on the output wire going to the coil. A test light that has a regular flashlight bulb works for this.

Posted on May 03, 2015

  • B Vang
    B Vang May 04, 2015

    A video of the no spark


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  • Honda Master
  • 2,899 Answers

Check inside the distributor for loose wire connections, and signal from igniter.

Posted on May 02, 2015

Testimonial: "Do you mean the seven wire on the distributor? How can I check the signal from the igniter?"

  • 5 more comments 
  • B Vang
    B Vang May 02, 2015

    Oops never mind. Sorry.

  • danoyachtcap
    danoyachtcap May 02, 2015

    Some models of Honda have the igniter inside the distributor. I would need the manual to find the pins. It you can, go to autozone.com
    and register your car, they will have all the schematics.

  • danoyachtcap
    danoyachtcap May 02, 2015

    The signal is a pulse that feeds the coil. I've seen it measured with a signal light test unit like a pen.

  • B Vang
    B Vang May 03, 2015

    Thank you for replying back to me. Here also a video too...


  • danoyachtcap
    danoyachtcap May 03, 2015

    Nice video, I couldn't tell if you got a spark out or not. If a good spark, be sure to check the Main Relay and it's fuse because the relay drives the fuel pump.

  • B Vang
    B Vang May 03, 2015

    Thank you. No I have no spark at the coil but I think I have power from the igniter as the test light lights up... so my problem is I don't know why the coil have no spark because that coil is new so yeah.. and um do you know any reason that could cause no spark at the coil?

  • danoyachtcap
    danoyachtcap May 04, 2015

    Yes, In some cars the Main Relay does stop power to both fuel and power to the coil. Check that and the fuse to the relay.

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daves944
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SOURCE: 1991 honda accord "no spark"

There is a relay mounted way up under the dash on the driver side. It is about 1"x1"x2" and it says Mitsuba on it. This is the PGMFI relay, sometimes called the main relay or fuel injection relay. It is very likely the problem. You can buy another one, or there was a bulletin on how to repair it. You need to take it out, pop the cover off, and resolder the cracked solder joints on the pc board that the relays are mounted on. Really not that hard if you have a little soldering experience. If not, just buy another one, about 50 bucks.cb28323.jpg

Posted on Mar 26, 2009

  • 5 Answers

SOURCE: 2002 Honda Accord V6 check engine light on- local

po505 idle air control if this is the code all hondas do it eventully, small problem easy fix u have 2 choices either remove the idle air control motor and clean the inside of it u will find it's black and the spring inside is stuck clean it with carb cleaner or gum cutter any parts store will have this it's a dirty job it will work for awhile but to replace it is recommended its not expensive for a new one which u can get at any autoparts store autozone,advanced,napa etc. there is only 2 bolts in most cases maybe 3 i doubt it though if u go online t google and type in th eyear make and model and engine size in ur case it's a 3.0 v6 and look for idle air control locations u'll find it to do this job a shop will charge u anywhere from 100.00 for diag to retrive the code plus the part and the labor so about 250.00-375.00 it will only take u honestly maybe 15 minutes to perform only tools needed are a 10 millimeter wrench there is only 1 connector to disconnect and ur done if u do this u will still have the check engine light because u have not cleared it from the computer to do this just disconnect the negative battery terminal (the black one or has a neg sign - don't disconnect the positive side +)for 5 minutes then reconnect and the computer will have reset no more light. good luck it really is that easy

Posted on Oct 10, 2009

YellowNo5
  • 268 Answers

SOURCE: 92 Honda accord no spark to the plugs I've changed

Check all of your grounds: There is one in front of the transmission leading from the negative wiring from your battery. Another goes from your battery wiring to the inside of your fender area. 10mm bolt. There is another on your driver's side motor mount to the valve cover. Check all relative fuses too.

or...

Main Relay : Up above your gas pedal. Above your cruise control computer. It will be a gray box or a brown box about 3" square. TO DIAGNOSE: Try to tap it while you try to start it, you might need a helper. If this is it... Don't buy a new one, just pry the cover off of it and look close to find the broken solder connection. Heat the faulty pin until the solder puddles around it and your good to go. It's smaller than a human hair, look close and you'll see the loose connection.

Posted on Dec 29, 2009

Testimonial: "I'm going to check that first thing in the morning.I really do appreciate your help with this the holidays are over.Thank you very much"

  • 608 Answers

SOURCE: Replaced coil, cap, and rotor, also tested the ICM, & no spark

In training schools we were told the last item to suspect in ignition diagnosis was the ICM. Before you condem it, check all wiring connections and multi-conectors. Sometimes a contact in one of these gets pushed backwards whilst connecting and makes a doubtful contact after that. Also make sure the ICM is properly grounded and there's heat sink grease between the module and its mounting pad. Module overheating will cause it to shut down. It is true that testing of ignition models of any make is an inexact science, since the parameters under which it is tested are ideal and different to those it operates under on the vehicle.

Posted on Mar 29, 2010

  • 14036 Answers

SOURCE: my 1993 honda prelude wont

SOUND LIKE IGNITION COIL OPEN.

Posted on Nov 07, 2010

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1 Answer

2001 s10 no spark no power to fuel pumpe eng cranks over


Hello Gary,

Lets start with the no spark...


Diagnosis & Testing

http://www.autozone.com/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f803714e1


The Distributor Ignition (DI) system is controlled by the Powertrain Control Module (PCM).

The Distributorless Ignition System (DIS) is controlled by the Powertrain Control Module (PCM).

Testing The Ignition Coil

  1. Remove the ignition coil(s).
  2. Using an ohmmeter, check the resistance between the primary terminals on the underside of the coil. The resistance should be 0.50-0.90 ohms.
  3. Check the resistance between the secondary terminals. It should be 5000-10,000 ohms.
  4. If the coil failed either test, replace the coil.
If the coils(s) are good check the ignitions leads by measuring their resistance. (Multi Meter required.) If the coil(s) and leads are good

Secondary Spark Test
http://www.autozone.com/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f80371564


Please provide some details on your engine option 4 cylinder/6cylinder 2 WD 4 WD. Mileage...

Jul 24, 2016 | 2001 Chevrolet S-10

2 Answers

Changed everything for tune up still no spark


What make , model an year vehicle ? Is it coil on plug ignition system or dis ignition . Did you test for battery voltage at the coil or coils ? Is the powertrain control module controlling the coils ? Does it have a ignition control module ? Automotive Engine Ignition Coil Testing Repair How to test an ignition coil and ignition module with test light

Mar 17, 2015 | Cars & Trucks

1 Answer

1983 oldsmobile cutlass supreme,wont start


Well, you know the ignition coil has to be good. then the ignition control module inside the distributor has to be good. It controls the ignition coil firing times. This module can be tested at a parts store. And then, also in the distributor and attached to the ICM is the pick-up coil which tells the computer crankshaft position, so the computer knows when to signal the Ignition Control Module that it is to cause spark out of the coil. These are the components of the ignition system, so you know how to check them. Ignition coil, ICM, pick-up coil, and the pcm, computer.

First, check that power is getting to the coil when the key is turned to on. The coil must have battery voltage applied to it before it can cause spark. If there is power there, test the ignition coil, test the ICM, then the pick-up coil. If your wiring is good, one of them components may have failed. And of course, the last thing to suspect is the computer, the pcm. Hope you don't have to get that far.

Jan 11, 2015 | 1983 Oldsmobile Cutlass Supreme

2 Answers

No spark


PLEASE, up date your posts and not post 5 posts.
update it and tell the full story 1 time. THEN ADD TO IT, and please not start a new post. for 1 problem.

first off , i answered in details how to test the nostarts for just that.
but in another post its a blown fuse. then you fail to say which it is
or if it RE BLOWS> that is a big problem , posting

first off here are the no start rules. (you lost spark , got that)
1: check fuses, if the fuse blows again, this is JOB 1. spark is later. much later, the ECU can no process data, if there is no 12vdc POWER , it cant,
nor can it glow the CEL /SES lamp in the dash, IT cant.
The ECU in this car makes spark and fuel happen.
there are 3 fuses to blow that can kill the ECU dead.
so the first JOB on all modern EFI cars, is to get the CEL TO GLOW.
CHECK ENGINE LIGHT. = CEL.

your problem on car is not NOSTART
its NO power
no 12vdc power to the EFI system parts.
is the battery charged?
12.6vdc rested, or at 11v. ?
this is first.
then does that fuse keep blowing. i bet does, my gut feeling.
and which fuse?
if the fuse blows, we must to short testing
we have great videos to cover that, very detailed,....

btw2
the honda, has free operators guides
and full FSM , for free... ask.

Jul 09, 2014 | 1991 Honda Accord

1 Answer

My 92 explorer has no spark


Hi, here are some tests you can do to diagnose the problem. Please let me know if you have questions.

First, use a voltmeter or 12 volt test light to check for power on the red wire going to pin 8 of the ignition control module when the key is on. The module is in the left front corner of the engine compartment.

jturcotte_2441.gif
jturcotte_2440.gif

If there is no power, the problem is the ignition switch or EEC relay. If there is power, next, check the ignition coil as listed below.

IGNITION COIL TESTINGPrimary and Secondary Circuit Tests
  1. Turn the ignition switch OFF , disconnect the battery, then detach the wiring harness connector from the ignition coil to be tested.
  2. Check for dirt, corrosion or damage on the terminals.

PRIMARY RESISTANCE
  1. Use an ohmmeter to measure the resistance between the following terminals on the ignition coil, and note the resistance:

Except 2.3L, 2.5L and 5.0L engines


B+ to Coil 1 B+ to Coil 2 B+ to Coil 3
The resistance between all of these terminals should have been between 0.3-1.0 ohms. If the resistance was more or less than this value, the coil should be replaced with a new one.

SECONDARY RESISTANCE


jturcotte_2439.gif

Fig. Fig. 1: Engine ignition coil harness connections-3.0L and 4.0L engines

  1. Measure, using the ohmmeter, and note the resistance between each corresponding coil terminal and the two spark plug wire towers on the ignition coil. The coil terminals and plug wires towers are grouped as follows:
Except 2.3L, 2.5L and 5.0L engines

Terminal 3 (coil 1)-spark plugs 1 and 5 Terminal 2 (coil 3)-spark plugs 2 and 6 Terminal 1 (coil 2)-spark plugs 3 and 4

If the coils test good, move on the the crankshaft sensor.
Using a DVOM set to the DC scale to monitor less than 5 volts, measure the voltage between the sensor Cylinder Identification (CID) terminal and ground by backprobing the sensor connector. If the connector cannot be backprobed, fabricate or purchase a test harness. The sensor is okay if the voltage reading varies more than 0.1 volt with the engine running at varying RPM. (check both the blue and gray wires at the ignition module with the engine cranking.)



jturcotte_2442.gif

Fig. Fig. 3: CKP sensor wire harness connections for the 4.0L (VIN X and E) engines


If there is power and both the coils and sensor check good, replace the ignition control module.

Oct 27, 2011 | Cars & Trucks

1 Answer

My 92 dakota is not getting any spark


Engine Fails To Start

The "Checking For Spark'' test should be performed prior to this test.

This is a basic test of the ignition system that systematically examines the battery, the coil, the engine controller, and its wiring harness and connections; the most likely culprits in a no-start condition at this stage.
88472304.gif

Fabricate this special jumper with a 0.33 MF capacitor in-line to test the ignition coil
Click to Enlarge

  1. Unplug the ignition coil harness connector at the coil.
  2. Connect a set of small jumper wires (18 gauge or smaller) between the disconnected harness terminals and the ignition coil terminals.
88472314.gif

Terminal locations on the engine controller 14-way connector-1989 models
Click to Enlarge 88472305.gif

Engine controller 60-way connector-relevant terminals for testing are shown numbered
Click to Enlarge

  1. Attach one lead of a a voltmeter to the positive (12V) jumper wire. Attach the negative side of the voltmeter to a good ground. Measure the voltage at the battery and confirm that enough current is available to operate the starting and ignition systems.
  2. Crank the engine for five seconds while monitoring the voltage at the coil positive terminal:
    1. If the voltage remains at zero, diagnosis of the fuel system should be performed. Also check the engine controller and auto shutdown relay.
    2. If voltage is at or near battery voltage and then drops to zero after one or two seconds of engine cranking, check the engine control module circuit.

WARNING

The ignition must be turned OFF prior to unplugging the engine controller connector. If it is not, electrical surging could occur causing damage to the unit or other electrical components in the vehicle.

  1. If the voltage remains at or near battery voltage during the entire five seconds, turn the ignition key OFF. Remove the 14-way connector on 1989 models, or the 60-way connector on 1990-96 models at the engine controller. Check the 14-way or 60-way connector for any spread terminals.
  1. Remove the test lead from the coil positive terminal. Connect an 18 gauge jumper wire between the battery positive terminal and the coil positive terminal.
  2. Make a special jumper cable (see illustration). Using the jumper MOMENTARILY ground terminal 12 on the 14-way connector (1989), or terminal 19 (see illustration) of the 1990-96 60-way connector. A spark should be generated at the coil wire when the ground is removed.
    1. If a spark is generated, replace the engine controller computer.
    2. If no spark is seen, use the special jumper to ground the coil negative terminal directly. If spark is produced, repair the wiring harness for an open circuit condition. If spark is not produced, replace the ignition coil
    this is for distributor ignition
THIS IS TESTING OF DISTRIBUTORLESS IGN
Testing

This procedure requires an ohmmeter to test the coil packs for primary and secondary resistance (specifications are given for an ambient temperature of 70-80°F/21-27°C).
88472320.gif

The two coil packs contain five independent coils, which fire paired cylinders (shown numbered)
Click to Enlarge

  1. Disconnect the negative battery cable.
  2. Determine the manufacturer of the coil. It should be labeled either a Diamond or Toyodenso.
88472779.gif

Location of critical terminals for checking the coil primary resistance-V10 engine front coils
Click to Enlarge 88472780.gif

Location of critical terminals for checking the coil primary resistance-V10 engine rear coils
Click to Enlarge

  1. Check the secondary resistance of each individual paired coil by connecting an ohmmeter across the coil towers. This must be done between the correct cylinder pairs: 3/2, 7/4, 1/6, 9/8, or 5/10. Resistance for a Diamond coil should be 11,300-15,300 ohms. For a Toyodenso manufactured coil pack, resistance should be 11,300-13,300 ohms.
88472323.gif

Use an ohmmeter to check secondary resistance as shown

  1. Check the primary resistance of the front coil pack by attaching an ohmmeter between the B+ coil terminal and either the right (cylinders 3/2), center (cylinder 7/4), or left coil (cylinders 1/6) terminals. Resistance for a Diamond coil should be 0.97-1.18 ohms. Resistance for a Toyodenso coil should be 0.95-1.20 ohms.
  2. To test the primary resistance of the rear coil pack, attach an ohmmeter between the B+ coil terminal (see illustration) and either the right (cylinders 9/8), or left (cylinders 5/10) coil terminals. Resistance for a Diamond coil should be 0.97-1.18 ohms. Resistance for a Toyodenso coil should be 0.95-1.20 ohms.
i hope this helps any more questions repl if help at all plz vote or comment me

Jan 17, 2011 | 1995 Dodge Dakota

1 Answer

What should a multimeter read on a continuity test on the coil packs? i'm getting 1.9,1.7,1.7


The multimeter can read the resistance and if it is not open or shorted out, I'd say that your readings are in the normal range, comparing each resistance with each other + or - 10%.

I looked up the resistance readings on my online resource, but they did not list it specifically.
---
I looked up the following on autozone.com:

There are 3 dual-tower ignition coils that are part of the ignition control module (ICM). The ICM contains coil driver circuits that command the coils to operate. The Powertrain Control Module (PCM) controls each dual-tower ignition coil by transmitting timing pulses on the ignition coil control circuit to the ICM for the proper coil to enable a spark event.
  1. Inspect the spark plug wires for proper orientation.
  2. With the ignition OFF, remove the fuel pump relay.
  3. Crank the engine and test for a strong spark on each cylinder spark plug wire using a suitable spark plug tester. Ground the companion cylinder spark plug wire of each cylinder when it is tested.

    If a strong bright blue spark is present on all of the cylinders, remove and inspect all of the spark plugs for proper torque, proper gap, wear, damage, and fouling. Replace the spark plugs if necessary. If there is no spark on any of the cylinders, test the ignition voltage circuit of the Ignition Coil Module (ICM) for an open/high resistance or short to ground, or test the ground circuit of the ICM for an open/high resistance, or a faulty ICM. The wire circuit resistance should measure less than 3 ohms. If there is no spark on any of the cylinders, or spark is weak or intermittent, test the IC circuit for an open/high resistance, or a faulty ICM. The wire circuit resistance should measure less than 3 ohms. If spark is present on one or more of the cylinders, inspect and test the spark plug wires for arching, cuts, rubbing on other components, and proper resistance. If all tests are normal, then the system is operating correctly.
    ---

Oct 08, 2010 | 2000 Chevrolet Venture

1 Answer

The engine will rotate but will not fire, and we want to know the proper way to check the ignition module on the 94 3.8 v6 mustang. and we just want to get the problem fixed so I can drive my baby.


Ignition Module is actually a class C amplifier. It amplify signal instead of music. Class C amplifier are very efficient type of ampifier. They are used to drive the flyback transformers in a television to create high voltage for the screen. In a car it drives the ignition coil to produce high voltage for the spark plug.
You can't test them unless you know electronics, but you can do an elimination process. Remove the ignition coil from the car, and bench test it. Note the postive and negative terminals. connect a spark plug to the output. and ground the spark plug at the negative side of the two terminals. Apply 12 volts to the terminal, then take off the positive side, as the voltage collapses a high voltage is induce firing the spark plug. The most likely item to go bad in an ignition system is the coil or the ignition module since they work the hardest. If the coil tested good you are almost sure it is the module.

Nov 14, 2009 | 1994 Ford Mustang

4 Answers

No spark at plugs . Engine won't start, check fuel first, getting plenty. Then check for spark, no spark.


Have you checked your plug wires to see that are tight? The plug wire may need replaced.

Aug 21, 2009 | 1994 Buick LeSabre

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