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How do I test the coil on my Honda G300 5hp rotavator. Because there isn't a spark on the plug

1042675 is stamped on crank case

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  • Expert
  • 100 Answers

Pull out all coils. use an ohm meter to check ohms on all and see if they are different

Posted on Mar 16, 2019

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6 Suggested Answers

6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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SOURCE: 92 honda accord intermittent crank but no start/ tranny issues

I know that early 90's Honda's had problems and in fact a recall on the distributor. Might want to replace the distributor. Inside of the distributor is a part called the igniter which is the ignition module and that is what normally goes out. I cannot remember if you have to replace the whole distributor to get the igniter or if you can just replace the igniter itself. Has been a few years since I have worked on one. hope this helps but if not please contact me. I'm not sure about the drive light flashing thing though, new one on me.

Posted on Sep 12, 2008

daves944
  • 1050 Answers

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

mcgyver468
  • 710 Answers

SOURCE: 98 dode ram wont crank no spark

May have no spark due to a bad crank sensor, which is responsible for spark when it gets a pulse through the cars' computer.

Posted on Apr 24, 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"

AutoDoc
  • 169 Answers

SOURCE: how can you test the spark plug coils, what is the

Dear Pablo,
You can check the input voltage at each coil. This way you make sure you have the proper amount to operate. Disconnect the six ignition coil connections. Turn the ignition key on. Check the voltage at Cyl #1 B/Y wire, Cyl#2 B/U wire,Cyl #3 B/O, Cyl#4 B/G, Cyl#5 B/R, Cyl#6 B/W and ground. It should be 10.5V or higher. If not,you need to find the cause of the voltage drop.
If ok, you can test the resistance of each coil. At the coil,measure the resistance across the primary windings.It should measure between 0.50 Ohms ans 1.00 Ohms.
I hope this information is helpful.If you need anything else,don't hesitate to ask. Thanks,Chuck.

Posted on Jan 02, 2010

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1 Answer

What would cause my 2000 Jeep Wrangler 4.0 liter straight 6 to turn over fine but not get any spark?


all 6 dead?
on all jeeps
we connect the scan tool
and crank and in many cases, over 1/2 it tells me why.
like CMP bad, CKP or spark ignitors dead.
TJ jeep it is
see the free FSM yet, posted over 300 times here.
chapter 8d pg 22
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service


my guess is the coil rail , preplexs you, as it does everyone
testing spark here is no fun.
3 coils on one pack (rail) (wasted spark system)
do you know how to test wasted spark?
must be done in pairs, or 2 plugs fail.
8w-30 page see the coil there,
see there are only 3 coils
that is defacto wasted spark systems.

so to test that, you must do all 6 at once, or 2 in pairs
there is no other ways.
are spark plugs fresh/????
did you scan it first..... ????????
if not that is hopeless

page 12 covers that in chapter 8d

questions????
1: check fuses first.?
2: does CEL lamp glow key on.
3: does ASD relay energize keyon and cranked
and hold there cranked, if not the SCAN tool tells you why not.
in every case.
4: got spark with only these wired.
1 and 6
2 and 5
3 and 4

in each case the 2 are connected, and shells grounded to engine.
and will fire in pairs, this is how it works.

best (avoiding a SHOCK)
is to insert 6 new plugs there gapped to spec.
then ground all 6 shells to the engine, metal
then crank.... is use bare copper wire to wrap all 6 daisy chained
then to a clip to metal of engine.
person 2 cranks, and you see all 6 fire, in sequence.
that is the correct way.
if the ASD is dead, then the will be no SPARK ever. or fuel.

see asd here, what it is, and how to test it.
http://jeepdied.com/


http://jeepdied.com/no-start.html


do not hold parts in hand cranking
or you light up like a June bug.

Feb 19, 2016 | Jeep Cars & Trucks

2 Answers

My Honda Civic 2002 EX its manual, crank but won't start, check all light, battery, everything I can think of but won't start, what could be the cause.


There could be many things wrong but you will need to find out what trouble codes are set on it as any starting point.

Sep 12, 2014 | 2002 Honda Civic

1 Answer

Fuel pump


Testing of the fuel and ignition systems is in order. Intermittent problems need testing when the problem is present, otherwise it won't help find the problem.
I would start by checking for spark on a spark plug wire (or two or three plug wires, in case it may be a bad coil), during those times when it won't start. You need to see a blue, snapping spark to verify ignition system is working.
To check the fuel system, have the fuel pressure checked, and the injector circuit checked. Good that you hear the pump, but you don't know if fuel pressure is correct, or if fuel is getting into the cylinders. One short test is to spray starting fluid or carb cleaner into the intake while engine is cranking. If engine fires up for a few seconds, you know it is a gas related problem.
If ignition system is the intermittent problem, could be failing coil or coils, ignition module, crank position sensor, even the computer, or a wiring problem like a bad connection. Testing of each component will be required, or you could start throwing new parts at it, like many people do, until you find the bad part. Find a reputable mechanic-there still are a few, lol.

Jul 30, 2013 | 1998 GMC Sierra

1 Answer

No spark


If each plug has multiple coils then remove a coil from another plug and test that one. If it sparks, then you know the issue isn't the wiring, but the original coil.

Nov 03, 2012 | Cars & Trucks

2 Answers

I have a 1983 Honda Accord Auto which will not start. Have checked the ignition coil and spark plugs, and there is a spark but it is weak. Have tried with a new ignition coil and the same problem exists....


test battery -is it holding 12.6v charge-if not then its over 3 yrs old or the alternator is bad--also inspect inside distributer cap and plug wires--they get corroded and need replacin

Sep 26, 2011 | 1983 Honda Accord

1 Answer

My 1990 Chevrolet Truck isn't getting a spark... I've replaced the distributor & plugs, cap, rotor, coil, ecu, and everything... Still nothing


You need a test light if you are not getting any spark your start is power at the primary part of the coil then you will need to check for pulse at the negative of the coil, you have a connection problem here is the most famous failure the coil connection has a tendency to spread and not make contact have someone crank the vehicle and you wiggle the coil connection see if that help other than that you need a test light your problem is in the wire

Jul 03, 2011 | 1991 Chevrolet Silverado 2500

1 Answer

Crank, won't start problem. I checked the spark plugs on Jeep 98. Looks good. Could it be the crank sensor or starter coil?


Yes it is very much possible.But there are many other possibilities too,including starter and spark plugs issue.

If your engine cranks normally but will not start because it has no spark, or it stalls and won't restart because it has no spark.

You can also do a test to confirm the problem .The procedure to do the test is as follows:---

If your engine has spark plug wires, disconnect one of the plug wires from a spark plug and place the end of the wire near a metal surface on the engine. Then insert a small Phillips screwdriver into the end of the wire (the plug boot), or a small bolt or nail to provide a conductive path. Then crank the engine and look for a spark to jump from the screwdriver, bolt or nail in the end of the plug wire to the engine. If you do not see a spark, there is an ignition problem.

OR-----------

If your engine has a coil-on-plug ignition system with no plug wires, In that case remove one of the coils from the spark plug and insert an old spark plug, a spark plug tester or a screwdriver into the end of the coil. Ground the spark plug or plug tester to the engine, then crank the engine and look for a spark. No spark indicates an ignition problem.If the engine has no spark, check for voltage at the coil positive terminal when the ignition key is on. If NO voltage, then problem is on the trigger side of the coil (pickup, crank sensor, ignition module or primary wiring circuit).

But If there is NO voltage at the coil itself, then in that case the problem is on the supply side (the ignition switch or ignition wiring circuit).-----------------

Jeep cranks but no start:----------------

A jeep that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also these problems are related to faulty spark plug. Check the spark at spark plugs when you start the jeep. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt. If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced. If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the jeep. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the jeep. If its very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the jeep. If the car starts momentarily, then there's a good chance the fuel pump is not working or the jeep is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gauge and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem. Thanks. Helpmech.

Jan 07, 2011 | Jeep Cherokee Cars & Trucks

2 Answers

My 2003 honda accord v6 refuses to start. It cranks but no spark on the plug. What should i do?


Either the spark plug is faulty or the coil pack is faulty.The spark plugs get power to spark from coil packs.

If the engine has no spark, check for voltage at the coil positive terminal when the ignition key is on. If NO voltage, then problem is on the trigger side of the coil (pickup, crank sensor, ignition module or primary wiring circuit).

But If there is NO voltage at the coil itself, then in that case the problem is on the supply side (the ignition switch or ignition wiring circuit).

But if the coil has voltage, then problem may be a bad high voltage output wire from the coil to spark plugs or hairline cracks in the coil output tower.------Getting this all possibilities checked will point towards the exact faulty part which is to be replaced.----------This should help.Thanks.Helpmech.

Dec 24, 2010 | Honda Accord Cars & Trucks

1 Answer

Honda accord /93


You need to take each spark plug out and individually test them while u start them up. Take one plug and put it back in the the plug wire and while you are holding it to a ground crank it over. If you see a spark the plug is good. You probably do have foul plugs. If thats not the case then check the fuel system like fuel pump, fuel filter, and that kind of stuff.

Jun 22, 2008 | 1993 Honda Accord

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