Question about 1990 Daihatsu Rocky

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How to test ignitor

No spark

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Sometimes it's easier just to replace the ignitor, if the coil checks out for continuity.

You can check for coil spark by disconnecting the negative wire and tapping it against the chassis while looking for a spark from the high tension lead resting on the engine.

You can check the ignitor is getting a signal by connecting a dwell or duty cycle meter to the incoming signal.

Posted on Jan 11, 2009

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I got a code 43 what do it mean


1994 Jeep, Cherokee?

check all EFI system fuse first with a meter.

that is ASD drop out.
all jeeps from 93 to now have ASD relays.

43 code (nice checking you did) is bad spark.
when the PCM sees bad spark it then shuts every thing down

http://www.fixkick.com/Jeeps/ASD.html

cause is bad ignitor or coil.
the big v8, with the funny locking throttle body... short.
that is true if you crank for 5 full seconds.
to see if CMP sensor fails too.
cmp cam sensor is in the distributor base.
the ignitor is in the PCM, and drives the coil directly.
i presume spark is dead directly at the coil terminal
and is dead the first 2 seconds cranking. right.
takes 2 person to test spark. one at key , 1 and coil
the PCM only allows 2 seconds for spark to happen
if it fails ,it kills the ASD relay.
making trouble shooting tad hard , for those that dont know jeep ASD issues.
if the 5.2L cmp and CKP sensors work right, the PCM then creates spark
it does this via and ignitor.
the coil can be bad, as can the rotor and cap. id replace any old cap and rotor, fast. if the coil tower terminal HV. has good spark.

read failure to start test here
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service
chapter 8D-6

and page 8w-30-4 , coil schematic.
as you can see, the coil has 12vdc key on for 2 seconds.
cranking.
the PCM ground the minus coil pin.
this charges and fires the coil
the ignitor transistor is in the PCM on this car.
The PCM monitors this pin minus , and if it fails to pulse,
it knows the Coil is dead. and then shuts down EVERYTHING EFI wise.

that is how it works.
tricky yes,but true.



Apr 06, 2014 | 1994 Jeep Cherokee Country

1 Answer

My car cut off while i was driving


Civics are known to fail in two areas the main relay or ignitor.

1-First turn your Switch to ONII and check if your check engine light come on for two seconds and turn off, at the same time you need to hear the fuel pump priming. If you not hear the fuel pump the main relay is the culprit, if the CEL stay on retrieve the codes and start from there. The OEM MR is $60-65, eBay have the knock off for around $25.00

2- If the first part test fine, buy a spark tester or put a plug in the wire one. Have a friend crank the car and look for spark. If spark not present you have a bad ignitor. This ignitor is a little pricy OEM, The eBay units run for $25.00 but this are knock offs.

Hope this help
Carlos

Apr 04, 2014 | 1996 Honda Civic

1 Answer

I renewd head and replaced it,but now no spark from coil after reasemlbly.


what does working mean.
1: cranks but will not start
2: runs bad.
3: spark dead.

the stock sammy engine, 1.3 has a stand alone Distributor.
it has a VR sensor + ignitor and 1 external coil.
any ign coil can be bench tested. ask.
did you do the checks in the FSM yet?

many a SAMMI have the engine swapped, this old
many are upgraded to Sidekick G16 engines, so first post what the engine is, or a photo of it for fast ID.
chapter 8 ? read that? volume 2.
pdf page 69:? coil tests.
set the VR gap right yet? page 70
vr gen resistance page 70?
page 71 , ignitor test , figures 8-16?

does rotor spin , cranking?
with a voltmeter on the negative (-) . terminal (Volts to ground test)
does the ignitor fire the coil as you crank car.
12v, 0v, 12v ,0v, repeats as you crank
if not, the Dizzy is bad, or not grounded.
or the the coil is open (primary) see page 69 again.

if the dizzy is dead. we replace the whole thing
from Cardone, for 1/2 prize of bad parts inside.
the internals are very expensive.

the distributor must be grounded well, and with varnish on these
old parts, that can fail.

the VR is a very weak signal (below 1v) that is is amplified by the
VR amp then this is a strong gating signal to the Ignitor which
is just a very powerful transistor, in reality.
you can check the ignitor output with a meter or scope of any kind
to see if it is FIRING.

if the voltage is 0v, the coil is open or the ignitor is shorted.
the latter failure, loves to burn up good coils.
if stuck at 12v, cranking, the VR/Ignitor is bad, try setting the gap
or grounding the dizzy case with a jumper wire to the battery neg lug.
that is it on old DIZZy's (distributors, unless the advance is bad....)











Jan 31, 2014 | 1988 Suzuki Samurai

2 Answers

No spark at plugs


can be many things.
but first check spark directly at the coil,
if coil HV output is zero.
then bad dizzy cmp
then bad ignitor
then bad coil
or bad ecu.
there is a test for each, do you have tools?

Sep 04, 2013 | 1990 Geo Prizm

1 Answer

91 honda civic has no spark changed coil still dont start


The ignitor is the brain that fires the coil. The distributor sends a signal to the ignitor, so if you have power to the coil either component could be defective.
You may need a shop manual to get the testing procedures for the ignitor.

Jun 13, 2013 | Cars & Trucks

1 Answer

2006 Suzuki forenza no fire from coil pack


what country? this is the WWW, post country for better answers.......!
Only a scope can see the fast 5mS signals to the coil.
so its either the coil pack or the ECU blown. (wires are always suspect)
you never said , all 4 are dead, or 1 or 2, and how many packs.
some non usa cars have wasted (2pak) spark , not 4 COPS.
state what cylinders have spark and which don't.
there are only 2 ways to fix cars.
1: guess and swap parts
2: use tools. my guess is you dont have them.
some coil packs are active (ignitor inside) others just a coil.
you can test the restance of the coils, with a DMM , ohm meter.
if active you cant.
the fsm covers this on all cars.
https://suzukipitstopplus.com/category/3-suzuki-service-manuals.aspx
the 2006 Forenza as delivered to USA has.....
has a large single, dual wasted spark coil pack. (brick)
it does in fact have , internal ignitor drivers. inside. so can not be tested
with and ohm meter on the primary side. but can be on the secondary
you do know how to test wasted spark , right, All spark plugs must be
attached and grounded for the coil to work,
1and 4 are shared.
2 and 3 are shared.
so to test , you must keep the spark plugs (both or all 4 is best)
attached and the shells of spark plugs grounded.
there is a fuse that powers the coil pack. (usa)
the fuel pump relay sends power to the coil pack.
so of that is dead,so will be the pack. (im reading FSM as it type)
get an FSM.
pin 2 on coil pack is power. 12v.
pin 1,is spark 1&4 drive (fast ECU pulse)
pin 3 is 2&3 coil drive. (scope can see it)

recap, are you using the correct wasted spark testing method.
and are all 4 spark plugs dead.?

Feb 18, 2013 | Suzuki Forenza Cars & Trucks

1 Answer

Ignitor receives no distributor signal


How are you doing this testing?

You need wiring diagrams,regardless of
what has been done so far, if your to continue.

Dec 07, 2012 | 1993 Toyota Pickup

1 Answer

How can u test the ignitor


take out a spark plug and ground it against the engine or head.crank the engine and watch the end of the plug.if you have spark the igniter and the coil is good

Nov 20, 2010 | Toyota Pickup Cars & Trucks

1 Answer

Truck died while driving - no spark from coil


Replace your ignitor and module that will fix your problem!

May 31, 2009 | 1988 Toyota Pickup

1 Answer

87 toyota 22R no spark


To check the Coil, pull the HT lead that comes from the coil to the dissy cap out of the dissy cap and hold close to the engine and with the ignition switch turned on earth the negative side of the coil. If there is no spark then the coil is the likely problem. If there is spark then check that the ignitor is recieving the signal from the pick-up (use an LED tester at the ignitor plug) the tester should blink as you crank the engine over. If the tester doesn't blink then check the output of the pick-up at the plug on the side of the dissy, if still no blink then check the pick-up clearance. If it blinks at the dissy and not at the ignitor the check the wires/plugs for breaks. If it blinks at the ignitor and there is still no spark then the ignitor is the likely fault.

Jun 29, 2008 | 1987 Toyota Pickup

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