Question about 1994 Toyota Corolla

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No spark at the plug wires, how i check , the coil , and madule

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To check the coil just put a screw driver in the end of the wire and touch it to metal and have someone turn the car over if u see spark its good . to check the module use a volt meter

Posted on Sep 26, 2009

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Posted on Jan 02, 2017

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1 Answer

No spark from coil to distrubuter


Disconnect the ignition coil output wire at the distributor cap.
Connect a spark plug to the end of the ignition coil output wire which you just disconnected.
Connect a ground wire to the threaded portion of the spark plug.
Disconnect the ignition coil ground wire from the negative terminal on the coil (Green Wire).
Connect one end of a ground wire to the ignition coil negative terminal.
Turn the ignition switch to the ON position.
Tap the other end of the ignition coil ground wire jumper on an good grounding point (for example the battery negative terminal) and look for sparks at the spark plug that correspond to the frequency of your tapping of the ground wire.
If you have a good spark at the spark plug, the ignition coil is good.
If you don't get a good spark, check for approximately 12 VDC from the coil positive terminal (black wire) to ground with the ignition switch in the ON position. You should also get approximately 12 VDC from the coil negative terminal (Green wire) to ground
Ignition Coil Resistance Check

In addition to the test above, you may elect to perform an ignition coil resistance check as confirmation of the coil's condition.

Check the ignition coil primary coil resistance by connecting an ohmmeter between the positive (Black wire) and negative (Green wire) terminals on the coil. The resistance should be 0.4 to 0.6 ohms.
Check the ignition coil secondary coil resistance by connecting an ohmmeter between the coil output terminal and the ignition coil negative terminal. The resistance should be 5000 to 7200 ohms.

You may have a bad coil or bad ground or wire connection

Jan 23, 2017 | Cars & Trucks

3 Answers

Engine stop


If theres no spark from the spark plugs then you would have to replace them?

Jul 12, 2008 | 1993 Toyota Corolla

2 Answers

Jeep 3.7 cylenders 2 & 4 not firing


3.7 V6, mileage?

most likely the HV wires bad.

then bad coil pack.

did you check spark directly at the coil pack?

i use 2 known good HV wires to do that and 2 good test spark plugs.

both plugs grounded to engine (shell)

that is how you test any wasted spark coil pack. 3 coil pack.

if that fails the FSM shows, unplugging it and check the coil resistances. if wrong the pack is bad,

keep in mind the res. can read ok and coil be bad ,due to internal insulation break down (internal shorts)

if thats ok. the resistance , make sure the wires are not (primary)

to the coil (the low voltage connnector)

if that is ok, its mostly likely a bad coil, (pray not bad PCM)

if tool-less? start with cheap parts , work to expensive. (guessing)





now wasted spark 101.

if one line opens , both spark plugs die. no spark

the wasted spark is wired in SERIES. ( like Christmas lights)

the magic cuts cost of 6 coil\'s.

so if the HV wires are say, cheap , carbon wire and open

you lose, both spark plugs. use MAG wire and end this issues.

get some nice NGK mag wire or Bosch Mag wires.

you can see i hate carbon wire. for good causes.

(carbon string wire)

mag wires is real wire that is coil spun and is inductive. it

has the correct impedance but is not a resistor its and inductor.

and lasts the longest , and worth every penny.

Mar 29, 2014 | 2006 Jeep Liberty

1 Answer

Im looking for the ignition control madule on my 96 mystique i have no spark in spark plugs but power thosr get to the coil pack


I would first replace the crankshaft position sensor. it is most likely the reason for the switching signal is not leaving the coil pack. unless the coil pack itself is bad. good luck

Feb 12, 2013 | Cars & Trucks

1 Answer

My 1993 Geo 1.8 cranks over but has no shark to the plugs I am going to check the coil but is there a way to check using an Ometer? Also am I going inthe right direction with this or could this also be a...


yes, you can check the coil with an ohmmeter, but you should also check power to the coil with a test light or voltmeter. I will look up the procedures momentarily.

Dec 07, 2010 | 1996 Geo Prizm

1 Answer

Scanner shows po300 random missfire code,replaced plugs, wires, ignition module,gas filter,checked ohms on coil packs, all 3 test close to identical.Every once in a while, all the guages drop to zero for a...


I have a 1998 Sunfire/ son warp the Head by not finding a leak that was the water pump. had head grounded down and reconnected. now i get a PO300 and it a misfire random. took the Ignition coil/ignition control madule to a shop and was test 3 times, first time it showed it failed , they did two more test on it and it passed. At night i turn off all the lights in Garage and sprayed a fine mist of water over the spark plugs and saw some flashing , not much very light on a couple of plug wires. Any one have an idea of what it may be . thanks for reading and i hope someone can give me a good idea thanks again

Jan 12, 2010 | 2004 Pontiac Grand Prix

1 Answer

No spark


Yor only next step is theres either a wire broke or corroded to the battery or the computer or the computer its self is out of it..Thats located in the car on passengers side under neath the dash below the glove box...If all wires are good and none of the seem to be bad its the computer..Hope this helps you and have a great day!!!

Apr 05, 2009 | 1992 Buick LeSabre

1 Answer

Check engine light on


Take your car to your local Auto Zone or Advanced Auto and they will pull your codes that are causing the check engine light to come on. They will do this for free. Let me know what the codes are and we will figure out what is wrong.
Let me know.
Regards,

Mar 05, 2009 | 1996 Pontiac Sunfire

1 Answer

Galant Special Edition 1994 Motor does not start


this maybe caused by no fuel or faulty fuel pump, ignition coil, wire and plug crank position sensor. first check for spark by removing on spark plug wire and put a spark plug in the spark plug wire boot, donot touch the plug only the boot have someone crank the car over. if you see spark, that part of the ignition is good. if not, check the coil resistance if should 40 to 80 ohm with a volt meter pf not replace. if ok, but no spark check the igniton control madule make sure the coil and module are receiving current. if not check the fuse that feels them. if it is ok, check distributor cap and rotor. if rotor and cap are fine, check for fuel at either the fuel filter, the fuel return line or removing some spark plug and see if they are wet. if there is no fuel check the fuel pump and the fuse and relay that control the pump. if there is fuel with high pressure but there is no spark, check the crank sensor for signal with a volt meter while cranking the vehicle

Jan 02, 2009 | 1993 Mitsubishi Galant

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