Question about 1990 Honda Prelude

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No spark tested resistances and coil but no fire in the hole

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Remember most of these vehicles have a safety switch on them that kills the ignition fire if the clutch is not pushed in all the way. Sometimes these switches go out. You also have a master fuse for the engine that could be blown. If it is an automatic they also have a safety switch to tell when the vehicle is in park. You can bypass that by putting the car in neutral and trying to crank it. If the car has been bump hard or in a wreck then it has an inertia switch that kills the flow of fuel.

Posted on Feb 07, 2010

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It mayI have no fire going to the coil or from the coil to the plugs


Have you checked the wiring, the spark @ plug, Power to the coil???

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Ignition Coil Troubleshooting: (No) Fire in the Hole

www.secondchancegarage.com/public/coil-troubleshooting.cfm

Jan 27, 2016 | Cars & Trucks

1 Answer

Firing order coil pack 2000 ford explore 5-0


Firing Order is 1 3 7 2 6 5 4 8

JF: Integrated Ignition Coil On Plug Coil 1 Through 10 Failure

2000 PCED On Board Diagnostics II


SECTION 5: Pinpoint Tests




Procedure revision date: 01/31/2001










JF: Integrated Ignition Coil On Plug Coil 1 Through 10 Failure


? JF: Introduction




JF1 DETERMINE WHICH COIL IS NOT FIRING

    Note: Electronic ignition engine timing is entirely controlled by the PCM. Electronic ignition timing is NOT adjustable. Do not attempt to check base timing. You will receive false readings.

  • Determine which coil is not firing using information from Pinpoint Test JB or DTC and the table at the beginning of this pinpoint test.


  • Record cylinder, coil and PCM pin number from the table.


Have the cylinder number, coil driver and PCM pin number been recorded?







Yes


No






GO to JF2.


To obtain required information, GO to JF1 and REPEAT.




JF2 DTC P0351, P0356, P0357: CRANKSHAFT POSITION SENSOR FAILURE
Are any of the above listed DTCs present?







Yes


No






GO to JF3.


GO to JF4.




JF3 CHECK RESISTANCE OF CRANKSHAFT POSITION SENSOR


  • Measure resistance of crankshaft position sensor.


Is resistance between 290 and 390 ohms (for LS8 between 900 and 1300 ohms)?







Yes


No






GO to JF4.


REPLACE crankshaft position sensor. COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).




JF4 CHECK FUNCTIONALITY OF SUSPECT COIL DRIVER (CD) CIRCUIT


  • Disconnect suspect coil (determined from the table).


  • Connect incandescent test lamp between IGN START/RUN and suspect CD circuit (determined from the table) at the coil on plug harness connector.


  • Disable fuel pump by disconnecting inertia fuel shutoff switch.


  • Observe incandescent test lamp while cranking engine.


Is the test lamp blinking consistently?







Yes


No






KEY OFF. GO to JF5.


KEY OFF. GO to JF6.




JF5 CHECK FUNCTIONALITY OF SUSPECT COIL


  • Remove suspect coil (determined from the table) from spark plug.


  • Connect an air gap spark tester 303-D037 (D81P-6666-A) or equivalent to a suspect coil.


  • Reconnect suspect coil harness connector.


  • Observe spark tester while cranking engine.


Is the spark present?







Yes


No






KEY OFF. INSPECT spark plug, REPLACE if necessary. GO to Z1.


KEY OFF. REPLACE coil. INSPECT spark plug, REPLACE if necessary. COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).




JF6 CHECK IGN START/RUN VOLTAGE TO SUSPECT COIL


  • Key on, engine off.


  • Measure voltage between IGN START/RUN circuit at the coil on plug harness connector and ground.


Is voltage greater than 10.0 volts?







Yes


No






KEY OFF. GO toJF7.


KEY OFF. LS6 and LS8: GO to B5.

All others: IGN START/RUN circuit fault. CHECK condition of related fuses/fuse links. If OK, REPAIR open circuit. If fuse/fuse link is damaged, CHECK IGN START/RUN circuit for short to ground. REPAIR as necessary. COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).




JF7 CHECK SUSPECT CD CIRCUIT FOR OPEN IN HARNESS


  • Disconnect PCM.


  • Measure resistance of suspect CD circuit between PCM harness connector pin (determined from the table) and coil on plug harness connector.


Is resistance less than 5 ohms?







Yes


No






GO to JF8.


REPAIR open circuit. COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).




JF8 CHECK SUSPECT CD CIRCUIT FOR SHORT TO VPWR IN HARNESS


  • Key on, engine off.


  • Measure voltage between suspect CD circuit at the PCM harness connector (determined from the table) and ground.


Is voltage less than 1.0 volt?







Yes


No






KEY OFF. GO to JF9.


KEY OFF. REPAIR short circuit. COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).




JF9 CHECK SUSPECT CD CIRCUIT FOR SHORT TO GROUND IN HARNESS


  • Disconnect scan tool.


  • Measure resistance between suspect CD circuit at the PCM harness connector (determined from the table) and ground.


Is resistance greater than 10,000 ohms?







Yes


No






GO toJF10.


REPAIR short circuit. If symptom or DTC is still present, GO to JF11 to check for damaged coil, otherwise COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).




JF10 PERFORM INTERMITTENT TEST ON SUSPECT CD CIRCUIT HARNESS


  • Connect digital multimeter between suspect CD circuit at the PCM harness connector (determined from the table) and CD circuit at coil on plug harness connector.


  • Wiggle and bend CD harness from PCM harness connector to coil on plug harness connector.


Did resistance fluctuate during wiggle test?







Yes


No






REPAIR intermittent fault in harness. COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).


REPLACE PCM. (REFER to Section 2, Flash Electrically Erasable Programmable Read Only Memory (EEPROM)). If symptom or DTC is still present, GO to JF11 to check for damaged coil, otherwise COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).




JF11 CHECK SUSPECT COIL FOR DAMAGE


  • Remove suspect coil (determined from the table) from spark plug.


  • Connect an air gap spark tester 303-D037 (D81P-6666-A) or equivalent to a suspect coil.


  • Disable fuel pump by disconnecting inertia fuel shutoff switch.


  • Observe spark tester while cranking engine.


Is the spark present?







Yes


No






KEY OFF. INSPECT spark plug, REPLACE if necessary. GO to Z1.


KEY OFF. REPLACE coil. INSPECT spark plug, REPLACE if necessary. COMPLETE Misfire Monitor Repair Verification Drive Cycle (REFER to Section 2, Drive Cycles).

Feb 14, 2015 | 2000 Ford Explorer

1 Answer

Tested coil no fire tested disterbeotor no fire, tested started had fire dashboard lights completety up, what should i do next? what to look for and how do i get fire to coil to start?


Hello, Bridget.. The problem is getting voltage/current to battery side of the coil
Need to check the coil. Easy way here. remove all the wires the are attached to coil but leave the coil grounded to the car body. Remove the coil wire from the distributor and lay it down next to some metal material. Take a piece of wire (16ga) or larger and attach one end to the positive side of the battery (+). Now, take the other end of the wire and touch the battery side of the coil---off/on--off/on--off/on. Now look at the end of the coil wire that up against the body/metal and see if it is sparking (dark blue and about one inch long), if it is sparking then the coil is OK.

You know it not working with the distributor connected. So, that leaves two things
the pickup sensor in the distributor or the ignition module. My educated guess will be the ignition module. It is located on the driver side fender, and it will look a 5X5 inch square with large plug that is plug into the module and held there with a screw.

Now, to check the distributor pick up coil. Check with the auto store and ask them what would be the resistance across the coil, or what is the resistance across the two wire from the distributor. If it check out OK, then ignition module is bad. I hope this help you out, GB....stewbison

Oct 15, 2011 | 1994 Plymouth Voyager

1 Answer

I feel a misfire but there no codes stored on the ecm


More than likely you need new spark plugs, or you have a bad Coil on plug. To test each coil on plug, read the following:
  • A commercial coil tester, available from many tool suppliers, is an excellent way to test suspect coils. If the coil can generate a spark on the tester, the coil should be in good condition.
  • An ohm meter can also be used to test coil winding resistance. Primary-side resistance, from coil minus to coil plus, is typically between 0.3 and 1.0 ohm on electronic ignition type coils.
  • Secondary resistance values vary widely, so consult a specifications chart for the engine you are servicing. If a spec chart isn't available, compare secondary readings among all the coils to see if any one is higher than the others. A high resistance indicates deterioration in the wiring. Surprisingly, a coil with high resistance may still fire the spark plug, but the voltage produced will be higher because the current must jump the open wiring in addition to jumping the spark plug gap.

Jun 02, 2011 | 1999 Lincoln Navigator

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

88 grand am


If you have a volt/ohm meter, you may want to first ohm check the resistance between the two spark plug towers on each ignition coil pack. Simply remove the spark plug wires from each coil pack and test. Both (if good) should test about the same resistance, (about 5-7 kOhms, but I don't have the exact specs handy on this particular vehicle. The reading may be higher, maybe around 7-12kOhms) but nonetheless, the reading of the 1-4 coil pack should closely match the 2-3 coil pack. If not, the new coil pack may be faulty and should be returned for a replacement.

Also, when you remove the 1-4 coil pack, take a look at the primary spade connectors (2 lugs) coming out of the ignition module. Make certain these are clean and free of rust or corrosion. If so, simply (and gently) use a finger nail file or 400 (or equivilent) sandpaper to file the corrosion off and re-attach the coil pack.

If one or both of these don't fix the problem, you may have to look at replacing the ignition module. But only do that after exhausting the other simpler and less expensive tests! :)

I hope these tips help you out or at least point you in the right direction! :)

Aug 19, 2009 | 2003 Pontiac Sunfire

1 Answer

The car will crank but does not have fire going to the coil pack


did you do a spark test?
This could be a number of things, your crankshaft sensor, coils or ignition module.
check the coils
  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 5,000-10,000 ohms.
  4. If the coil failed either test, replace the coil.

Jul 25, 2009 | 1995 Chevrolet Cavalier

1 Answer

How do you test the ignition module and ignition coil no fire in spark plug gmc savana 1999 5.0l 2500


to test the ignition coil hook a meter to the respective ends. there should be infiinite resistance in ohms on the coil

Mar 20, 2009 | 2000 GMC Savana

1 Answer

#1 cylender not firing


If it's only one cylinder that's not firing it's more likely that the HT lead (or spark plug wire, depending where you come from) is open circuit. Try replacing the leads before you go any further, hopefully that will solve your problem. You can test the lead resistance with an ohmmeter (allow for max 12000 ohms per 12 inches), but the problem could be that the lead is shorting to earth somewhere, which won't show up with a resistance test.

Hope this helps,
Mark.

Nov 04, 2008 | 1993 BMW 3 Series

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