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2008 fatboy repairing front end hit,bike has intermittent spark,replaced broken voltage reg.,checked crank sensor ok.leftt side regulator wires may have had some stress on them but do not see anything visual.if i hit the sarter button quickly and then crank it will spark continuously.if i stop and try again it wont spark.

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How good is the magneto on it? just a guess but it does create the spark

Posted on Sep 19, 2008

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I have a 2005 dodge neon that will crank but wont start. I have replaced the cam shaft sensor, crank sensor and the coil pack. Iam also not getting spark to the coil pack. Any suggestions?


Primary voltage to several systems, including the ignition coil, dark green wire with orange tracer. That voltage comes from asd relay. There is a fuse for asd relay. To check for voltage the engine has to cranking. The control side of asd relay, the computer has to ground it before it will energize. Did you check wiring circuits for cam and crank sensor connectors before replacing sensors? Are there any applicable trouble codes?
Are you ok with testing wiring circuits?

Feb 16, 2017 | 2005 Dodge Neon

1 Answer

F1 bike will not start


There could be many issues causing no spark on a 04 GSXR750. Check for battery voltage on the orange/ white wire at each coil. If none this model has a history of a failed right hand handlebar switch and or connector. Ignition voltage passes through this switch. Also check the main harness connector under the left side fairing panel near the area of the turnsignal for internally broken or corroded wires. If all this is good check the signal generator(crank position sensor) output voltage with a "peak reading " voltmeter. This is a special type of meter or attachment that must be used. The voltage should be 3-7 volts DC at cranking speed. Good luck.

Jan 14, 2013 | 2004 Suzuki GSX-R 750

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My 1996 Ciera Oldsmobile through a PO336 code?


Hi there:

DTC P0336 - Crankshaft Position Sensor A Circuit Range/Performance


The crankshaft position sensor (CKP) is usually a two wire sensor: a signal and a ground. The CKP sensor consists of (usually) a permanent magnent sensor that is mounted in front of a reluctor (toothed) wheel mounted to the crankshaft. As the reluctor wheel passes in front of the crank sensor, an A/C signal is produced that varies according to engine speed. The PCM (powertrain control module) uses this A/C signal to interpret engine RPM. Some crank sensors are hall-effect sensors instead of permanent magnent sensors. These are three wire sensors, provided with voltage, ground, and signal. They too have a reluctor wheel with vanes and "windows" that change the voltage signal to the PCM, providing a RPM signal. I will focus on the former, since they are simpler design and more common.



The crankshaft reluctor has a specific number of teeth and the PCM can determine the position of the crankshaft using only this sensor's signature pattern. The PCM uses this sensor to also determine cylinder misfires by measuring the reluctor teeth locations in the CKP sensor signal. In conjunction with the Camshaft position sensor (CMP) the PCM can determine timing of spark and fuel injection. If the PCM senses a loss of CKP sensor signal (RPM signal) even momentarily, P0336 may set.


Symptoms of a P0336 DTC may include:
Intermittent stalling & no start
No start
MIL (Malfunction Indicator Lamp) illumination
Intermittent misfire


Potential causes of a P0336 code include:
Bad crank sensor
Broken reluctor ring (missing teeth, debris lodged in ring)
Reluctor ring dislodged/stripped from it's stationary location
Wiring harness chafing causing short
Wiring open in CKP circuit


Possible Solutions: Crankshaft sensor problems are at times intermittent and the vehicle may start and run for some time until problem occurs. Try to reproduce the complaint. When engine stalls or if the engine will not start and continue to run, then crank engine while observing RPM reading. If there is no RPM reading, check for a signal coming out of the crank sensor. Using a scope is best, but since most DIYers don't have access to one you may be able to use a code reader or the tachometer to check for RPM signal.


Visually check the CKP harness for damage or cracking in the wiring insulation. Repair as necessary. Make sure the wiring isn't mis-routed near high voltage spark plug wires. Check for loose connection or broken lock at the sensor connector. Repair as necessary. Obtain a resistance spec for the Crank sensor. Remove and check it. If it doesn't pass, replace it. If it checks out okay, check the reluctor ring for damage, broken teeth, or debris lodged in the ring. Make sure the reluctor ring isn't dislodged. It should be stationary on the crankshaft. Carefully repair/replace as necessary. Note: some reluctor rings are located in the bell housing of the transmission or behind the front engine cover and cannot be easily accessed.


If the vehicle intermittently stalls and after stalling you have no RPM signal and you have verified the wiring to the CKP sensor is good, then try replacing the sensor. If that doesn't take care of it, and you can't access the reluctor ring, seek help from an automotive professional.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jun 27, 2012 | 1996 Oldsmobile Cutlass Ciera

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

1 Answer

We have a trike with a 1450 cc S&S motor. I have selected a bike below but it is not correct as this trike is not listed. It stopped running all of a sudden while riding. The battery was...


The regulator has nothing to do with the bike not running. Matter of fact, you can disconnect it at the engine case or the battery, it makes no difference as long as it's not shorted and drawing current.

To test the coil, leave the hot end of the coil connected and disconnect the end going to the sensor. Now, using a bare wire connected to the sensor end of the coil, momentarily touch the wire to ground. When you release the wire from the ground, you should see a spark at the plug. Or you can measure the coil's resistance with an ohm meter. When you measure the resistance of the coil from one small connector to the other, take all the wires loose. Put your meter's function switch in "OHMS, R X 1" position. Your coil should measure between 2 and 3 ohms, something like 2.72 ohms or so.

If you have voltage going to the coil, and the coil is good, but still no voltage, your ignition unit is probably shot. Since you have an S&S engine, no telling what type of ignition unit you have on it. Whatever took out the battery probably took out the ignition unit as well.

When you get the bike back running, I'll tell you how to test the regulator and the alternator on the engine.

Good luck
Steve

Aug 16, 2010 | Harley Davidson XLS 1000 Motorcycles

1 Answer

Replaced two new batterys after batters discharge bike dyes i believe alternator is defective. is this a repair i should attemp in my garage as a certified small engine mech.? would i save that much doing...


well if you a cert small engine tech you shouldnt be asking this...

Start the bike up and check to see if its charging 13.4 over if it is, its charging. Now check for a current discharging the battery using a amp/ multimeter.
If its not charging, check for battery voltage at the regulator, red and black it sould be the same as whats at the battery if not check for bad wiring and the earth lead. If the bat voltage is OK unplug the reg run up the engine and check for voltage with meter on AC at the 3 same coulor wires yellow or white this comes from the Alt cover you should have 18 -40volts AC at 2500RPM if this is correct on all 3 wires (test any 2 of the 3 wires) if this OK suspect the regulator

Jul 01, 2010 | 2004 Honda VT 1100 C2 Shadow Sabre

2 Answers

97 dodge neon died replaced parts and still no spark HELP.


YOU NEED TO CHECK DARK GREEN/ORANGE WIRE AT IGNITION COIL WHEN CRANKING ENGINE FOR POWER..IF NO POWER,SHUTDOWN RELAY IS NOT BEING ENERGIZED..THIS ENGINE ALSO HAS CAMSHAFT POSITION SENSOR ON END OF CYLINDER HEAD..ENGINE CONTROLLER NEEDS CAM AND CRANK SIGNALS TO ENERGIZE THE SHUTDOWN RELAY..UNPLUG CRANK SENSOR AND CHECK VOLTAGE ON ORANGE WIRE..SHOULD HAVE APPROX 8V..IF NOT..UNPLUG CAM SENSOR AND SEE IF 8V SUPPLY RETURNS..IF NO POWER TRY UNPLUGGING VEHICLE SPEED SENSOR LOCATED IN TRANS HOUSING WHERE RIGHT SIDE AXLE COMES OUT OF TRANS..IF 8V RETURNS..THE SPEED SENSOR IS SHORTED INTERNALLY..THESE 3 SENSORS SHARE THE SAME 8V SUPPLY CIRCUIT..WITH SPEED SENSOR UNPLUGGED,PLUG CRANK SENSOR BACK IN AND TRY TO START ENGINE..HAVE SEEN THIS SAME PROBLEM AT WORK RECENTLY

Jul 18, 2009 | 1997 Dodge Neon

2 Answers

Hyundai Excel 97 will not start, cranks well.


I finally traced my similar problem to a broken wire into the plug going to the crank angle sensor which on this animal is located at the front of the motor on the right hand side when looking at the motor from the front. It is just below the clutch slave cylinder and is held in place by a 10mm headed bolt or phillips head (posi drive) bolt.
Good place to start.
franknpeg

Apr 18, 2009 | Hyundai Excel Cars & Trucks

1 Answer

1995 fat boy- harley davidson


This is going to be a problem that will need to be tracked down because there are several things that could cause this. It's going to be in the electrical system, and any one or combination of the following can cause this, Faulty switch, especially the ignition switch, bad wiring which could be a bad connection, loose ground, bare wire, or broken wire, These are the two cheapest, but the hardest to find. Now, it can also be a bad or malfunctioning ignition module, coil, voltage regulator, and magneto assembly. You will have to test each of these. I recommend that you start at the spark plug end and work your way back since most of this is in line and work in conjunction with each other. Keep in mind that this being an intermittent problem, it may be extremely hard to find.
I also have a 95 Softail, and recently had a similar intermittent problem, turned out that there was a hairline crack in the regulator, and the problem would only occur if the regulator was warm enough for the crack to open a bit. I also traced the wiring harness, found and replaced several wires that were in bad shape, thinned, stretched, corroded, etc... You will be amazed at how much wear the wiring harness will have on a 13 year old bike.
Don't let this discourage you. In my opinion, the mid to late 90's models are the best HD ever built, and the Evo is by far the best engine. With the newer bike you have to worry about things like, crank and cam sensors, ECM's, fuel injection, and all the other electronic BS. It's to the point that the average rider can't work on his/her own bike, which is getting away from the HD tradition. That's a great bike you have, keep it for a long time. I may buy a newer bike someday, I don't know, but I do know that I will always keep my 95. Good luck with this and be safe.

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Sep 15, 2008 | Harley Davidson Harley-Davidson Motorcycle...

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