Question about 2003 Dodge Neon

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No spark on 03 dodge neon

03 neon 2.ol mt stopped running no code , no spark constant voltage to all three wires to coil 1&.2 primary have no pulse changed crank ,cam sensors and coil still wont start and no spark .Changed pcm started ran for about 10 minutes and died kicked out dtc p0038 and 0351 replaced up stream o2 manuel code description states 0038 downstream 02 has short unplugged downstream and code cleared so that needs to be done but all three coil wire have constant voltage Shouldn't the primarys pulse for spark.? Why no spark

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  • Dodge Master
  • 5,292 Answers

There is voltage on all three wires because there is no ground, check with engine cranking. The two wires that go to computer are grounds for coils. You could probably use a noid lite to check for pulse, engine cranking. That should be safe, between primary voltage and one of the grounds. There several ways to visually check for a pulse. If your digital multimeter has a min/max setting, that should work. You could use an l.e.d. but you would have to use resistor.
You changed computer, was it new?

no spark on 03 dodge neon - ignition coil-5iatbqqw4bcw3fkj1yoi3lr2-1-0.jpg

Posted on May 15, 2017

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4 Suggested Answers

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6ya staff

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SOURCE:

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Posted on Jan 02, 2017

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Lance Birch

  • 109 Answers

SOURCE: died while driving

while engine is running grab the wire harness that leads into the distributor housing with a pair of needle nose pliers and wiggle the wires!!
if the engine stumbles or stalls that is your prob!!!
go to parts store and get a magnetic pickup assembly!!
i think they call it something else but its the same concept, just different because it's a dodge thing!!!

Posted on Jun 18, 2009

Dennis

  • 100 Answers

SOURCE: i have an 02 dodge ram 1500 4x4 it started

You probably have a bad ignition coil. Which engine is in this truck? 3.7, 4.7, 5.7 or hemi

Posted on Jan 07, 2011

Arthur

  • 458 Answers

SOURCE: I have a 1995 dodge van which wont start due to no

A test light connected across the coil primary leads should flash on + off when engine cranks(coil sparks when 12v turned OFF due to collapse of magnetic field).If you get pulsed 12 volts,and no spark from the coil,the coil is bad.If you don't get the pulsed 12 volts,trace back to find out why(the PCM turns the coil ground on and off,12 volts comes from switched IGN source)

Posted on Jan 07, 2012

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2 Answers

1996 ram 1500 no fire got fuel changed everything help


Is the fuel only the initial prime? If so, that isn't good enough. Use a gage and check proper fuel pressure, engine cranking. You said no spark. Engine cranking do you have fuel injector pulse?
If your missing all three, have to check cam and crank sensor signals.
I don't know what testing you have done? Any applicable trouble codes? As far as parts you replaced, if electrical, have to check wiring circuits and wire connector.
Check primary voltage at ignition coil, engine cranking, use a test lite to check for voltage, should be hot.

Jun 15, 2018 | Cars & Trucks

1 Answer

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

Coil no power mitsubishi galant 4y 2006 im change timen belt bot no power in evry coil and chang cam shaft sonsor


Did you forget a ground wire attachment? Recheck your engine grounds.
Each coil should get power on the black/white from the ignition switch, constant battery voltage. Does it? If not, check fuse 24, a 10 amp fuse in the Junction Block. Power travels from the ignition switch (in ON, RUN, or START) to this fuse, and then is spliced to each coil. Other than that, the PCM controls the current switching for the coils (for spark). The other wire from the coil (black?) goes to the pcm for earthing the primary current to the coils.

If the coils have power but no spark, it could be the crankshaft position sensor. I believe the crank sensor would be more important than the camshaft sensor for the pcm to figure spark timing.

Mar 23, 2015 | Mitsubishi Cars & Trucks

1 Answer

2005 Dodge Neon Has no fri at plugs,no pulse at injectors and starter will not turn with key.


what about your security system? Is the security lamp on the dash on of flashing? If it is your security system, I doubt I can help you from here? Any applicable trouble codes?

Battery has a full charge? Sometimes the battery gets run down from testing?

The asd relay supplies primary voltage to fuel injectors--coil pack and other, engine cranking. The computer usually has to see both the cam and crank sensor signals or it won't ground the asd relay. I can only make suggestions on what to check.

Mar 05, 2015 | 2005 Dodge Neon SXT

1 Answer

Chrysler neon not fireing on 1 and 4 cyl


I would be more inclined to think the wiring in the coil pack for that coil may have a problem. Have a shop check your ignition system, before springing for a new pcm. There should be a hot wire to the coil primary wire going to that coil. May have to run continuity tests on the wiring for the coil pack. Or if you could find a used coil pack, and use your good coils on it to try it.

Dec 01, 2013 | Cars & Trucks

1 Answer

I am geting no spark at the coil


First of all let's explain how the spark gets to the plugs. There is a crankshaft position sensor and a cam sensor. They are what determines when to fire the coils and injectors. The crank sensor is located on the passenger side on top of the bellhousing, the cam sensor is the pickup plate in the distributor. As the engin turns the send refernece pulses to the computer which grounds and ungrounds the ignition coil causing it to discharge and send voltager from the secondary coil wire to the center tower in the distributor cap. The rotor button recieves the voltage and distributes it to the 6 towers (1 for each cylinder) If you say you're getting spark from the rotor that tells me the primary side of the ignition system is working, and the secondary side is working into the distributor cap. I'd check for spark out of the plug wires at the plugs. Pull a wire and insert a #2 phillips screwdriver into it, hol the shaft of the screwdriver aprox 1/8"(no more) from the exaust manifold and observe the spark as someone turns over the engine. You should see a nice blue spark. If theres spark, spray a little gum cutter in the throttle body an crank it, if it fires you have a fuel problem. Install a fuel pressure gauge on the schrader valve on the fuel rail and observe it as you crank it. If theres no fuel pressure maks sure there's fuel in the tank, if so climb underneath and beat on the bottom of the tank with a rubber hammer, the pump may be going bad, sometimes you can jar them and make them run.

Dec 04, 2010 | 1998 Dodge Grand Caravan

1 Answer

1990 buick lasabre with a 3.8 engine, cranks but no spark. No voltage to the primary side of coil. Code shows 22. Changed the trottle position sensor, crank position sensor and cam position sensor. Had the...


1. Monitor the 5v reference, Gray wire to the Throttle Position Sensor (TPS) with a Digital Volt Ohm Meter (DVOM) set to the MIN/MAX setting.

2. Monitor the TPS signal circuit, Blue wire with a DVOM. Voltage should range smoothly from approximately 0.44 to 5.0 volts as the throttle is opened.

3. Tap test the Electronic Control Module (ECM) and see if the codes come back or if the engine reacts.

possible causes wiring or Powertrain Control Module (PCM)

Oct 31, 2010 | 1990 Buick LeSabre

1 Answer

No fire


Hello, first of all let's explain how the spark gets to the plugs. There is a crankshaft position sensor and a cam sensor. They are what determines when to fire the coils and injectors. The crank sensor is located on the passenger side on top of the bellhousing, the cam sensor is the pickup plate in the distributor. As the engin turns the send refernece pulses to the computer which grounds and ungrounds the ignition coil causing it to discharge and send voltager from the secondary coil wire to the center tower in the distributor cap. The rotor button recieves the voltage and distributes it to the 6 towers (1 for each cylinder) If you say you're getting spark from the rotor that tells me the primary side of the ignition system is working, and the secondary side is working into the distributor cap. I'd check for spark out of the plug wires at the plugs. Pull a wire and insert a #2 phillips screwdriver into it, hol the shaft of the screwdriver aprox 1/8"(no more) from the exaust manifold and observe the spark as someone turns over the engine. You should see a nice blue spark. If theres spark, spray a little gum cutter in the throttle body an crank it, if it fires you have a fuel problem. Install a fuel pressure gauge on the schrader valve on the fuel rail and observe it as you crank it. If theres no fuel pressure maks sure there's fuel in the tank, if so climb underneath and beat on the bottom of the tank with a rubber hammer, the pump may be going bad, sometimes you can jar them and make them run.

Thanks

Aug 17, 2010 | 1993 Dodge Dakota

1 Answer

No spark


spark comes from a couple places you want to check.
1) coil
2) crank and cam sensor
3) ECM
if you find also the injectors are not getting an injector pulse than your spark problem is leaning more towards the sensors or the ECM.

Feb 26, 2010 | 1999 Dodge Neon

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