Question about Ford Taurus

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2002 taurus 3.0 ohv. no spark at spark plugs. new coil pack that tests good on the primary and secondary. New ignition switch, new computer, new camshaft position sensor. The coil pack is receiving battery voltage at the connector. The connector going to the crankshaft position sensor has 1.5 volts as the book calls for. I have not changed the ckp sensor. It turns over fine but just no spark on the plugs.

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Jeff Armer

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  • Ford Master
  • 15,575 Answers

Do you know what the 5 volt reference voltage is ? A4 CHECK VREF VOLTAGE TO THROTTLE POSITION (TP) SENSOR

  • Disconnect TP sensor.
  • Key on, engine off.
  • Measure voltage between VREF and SIG RTN circuit at the TP sensor harness connector. GO to Pinpoint Test DH to refer to the schematic.
Is voltage between 4.0 and 6.0 volts?
Check out videos on youtube .

Posted on Jul 29, 2017

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Anonymous

  • 65 Answers

SOURCE: How do you do the crankshaft position (CKP)

Ok!!11 if you try to replace disconect the batt. wire ground. by the time you change it the car computer clears the code and take some time for the computer toread all sensors.this shoulbe ok

Posted on Feb 26, 2009

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MNfisherman

Nate Stansfield

  • 11896 Answers

SOURCE: 97 jeep Crankshaft Position (CKP) Sensor . . .

If this is 4wd with the 2.5 L than the sensor is
Under hood, driver side, lower engine area, above exhaust oxygen sensor, mounted in intake manifold

Posted on Mar 31, 2009

Anonymous

  • 957 Answers

SOURCE: MY 1999 Ford Explorer will not start.

You may want to check a few other componants before you write-off the ECM. It could be it but its not common. The cam or crank positioning sensor, the ignition pick-up, the MAP or MAF sensor, And possibly the ignition switch.

Posted on May 16, 2009

chryslerguy

  • 323 Answers

SOURCE: How do I set the DOHC's timing on a 2000 Chrysler Concorde 2.7?

There should be plated links on those chains too. There is an index dot in both cams on each head that set at the twelve o'clock position.

Posted on Jun 09, 2009

Anonymous

  • 148 Answers

SOURCE: 1996 ford taurus 3.0 ohv camshaft position sensor

Yes you do the fuel and ignition timing is controled by that sensor and if it set in there wrong the car will not run very well.They may give you a plastic tool to set the sensor in but every one that has been set in by that tool has been wrong.In order to get that sensor put in correct you need get the tool that you can rent from most of your good auto parts stores.

Posted on Jul 25, 2009

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2010 ford fusion died and won't start but it will turn over. codes p0456,p0351,p0352,p0353 and p0354.


p0351,p0352,p0353 and p0354. It won't start because you have four cylinders not firing . P0351 - Ignition Coil A Primary/Secondary Circuit Description: See the description for DTC P0350. Possible Causes: See the possible causes for DTC P0350. Diagnostic Aids: See the diagnostic aids for DTC P0350. Application Key On Engine Off Key On Engine Running Continuous Memory Coil-on-plug (COP) ignition testing - GO to Pinpoint Test JF . GO to Pinpoint Test JF . Coil pack ignition testing - GO to Pinpoint Test JE . GO to Pinpoint Test JE .
When you see these codes , it's time to worry . These ford coil on plug system's can fry the transistors that control the coil firing . New computer or reman at ford $ 800.00 buck's then it needs to be programmed (dealer) What engine ? 3.0 v-6
This happens when the spark plug's are neglected , gap get's to wide , make's coil's over heat an break down , spark goes through the primary wire to the computer . Your best bet , take it to a qualified repair shop.

Jul 01, 2018 | Ford Cars & Trucks

1 Answer

I have a 2005 Grand caravan 3.3 with 236.000 miles it came up with a code P2308 ignition coil C secondary circuit ? No spark to cylinder 6 & 3 ?


No cylinders fire at same time. 6 & 3 must be from same coil-ignition coil C-that is the one with the problem. And the secondary circuit- that is the spark firing portion of the coil. Coils have a primary winding circuit and a secondary wire winding circuit. The secondary comes out of coil as the tower, or the spark plug wire tower -the business end of the coil leading to the plug.

You could have a bad new coil (happens occasionally) or the connection to that coil may be the problem-the connection where the coil snaps onto the coil pack assembly. Try swapping that coil (coil C) with another one there and see if problem follows the coil. See? Keep your plug wires the same, just swap coils with another and see if the new position for suspect coil causes other cylinders to misfire. If a different coil in that "C" position causes same code, then it is not the coil itself, but probably the base assembly that the coil connects to.

These ignition systems use what is called a waste spark, or exhaust waste spark system. The coil will send spark to 6 & 3 simultaneously, but since one is always on the exhaust stroke while the other is on the compression (firing) stroke, the exhaust spark is very weak, and all the energy from coil is directed to the compression stroke cylinder. It sounds crazy but it works great.

Since you say it runs bad just as before, that indicates the coil is not the problem, but something wrong with the base of the coil pack . This is where the wiring is directed to the coils.

Oct 13, 2017 | 2005 Dodge Grand Caravan

1 Answer

2004 caravan 3.3 OBD code P2308 ignition coil "C" secondary circuit ? No spark to cylinder 6 & 3 ? plugs & wires good & new coil pack ??


This code could also mean the transistor inside the engine computer is fried . New PCM/ECM needed .

P2308 Dodge Description The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. When the ignition coil driver is switched on, current rapidly builds up to a maximum value, determined by the coil inductance and resistance. When the current is switched off, the magnetic field collapses which induces a secondary high voltage surge and the spark plug is fired. This high voltage surge creates a flyback voltage which the PCM uses as a feedback during the ignition diagnostics. The PCM continuously monitors the ignition system for concerns. The P2308 code sets when the PCM detects a short to voltage in the circuit.

Videos on youtube for testing Computer drivers . Chrysler Pacifica misfire codes p2308 p0303 Doesn't matter this a chrysler . Dodge , Chrysler and Jeep , samething

Jan 30, 2017 | Cars & Trucks

2 Answers

I HAVE REPLACED THE COIL PACKS AND THE COMPUTER ON MY 2006 F150,BUT I STILL GET AN ERROR CODE OF 352.WHY IS THIS ?


P0352 - Ignition Coil B Primary/Secondary Circuit Description: See the description for DTC P0350. Possible Causes: See the possible causes for DTC P0350. Diagnostic Aids: See the diagnostic aids for DTC P0350. Application Key On Engine Off Key On Engine Running Continuous Memory Coil-on-plug (COP) ignition testing - GO to Pinpoint Test JF . GO to Pinpoint Test JF . Coil pack ignition testing - GO to Pinpoint Test JE . GO to Pinpoint Test JE .
P0350 - Ignition Coil Primary/Secondary Circuit Description: Each ignition primary circuit is continuously monitored. The test fails when the powertrain control module (PCM) does not receive a valid ignition diagnostic monitor (IDM) pulse signal from the ignition module (integrated in the PCM). Possible Causes:
  • Open or short in the Ignition START/RUN circuit
  • Open coil driver circuit
  • Coil driver circuit shorted to ground
  • Damaged coil
  • Coil driver circuit shorted to VPWR
Diagnostic Aids: Use the 12-volt non-powered test lamp to verify START/RUN voltage at the ignition coil harness connector.
Check the coil driver circuit for open, short to VPWR, or short to ground. Application Key On Engine Off Key On Engine Running Continuous Memory Coil pack ignition testing GO to Pinpoint Test JC . Coil-on-plug (COP) ignition testing GO to Pinpoint Test JB . Without me testing , it's hard to say what you got going on ! Coil packs ? What engine does it have ? 5.4 L ? should have coil on plug ignition .

Jan 13, 2017 | 2006 Ford F-150 Regular

2 Answers

Still having problems will not run good. 1997 ford 2.0 escort;new plugs&wires coil;fuel pump still codes 0351;


From a reputable repair website:


P0351 - OBD-II Trouble Code

Auto Systems and Repair

Ignition Coil "A" Circuit Primary/Secondary Malfunction Our emissions expert has put together the following information about the P0351 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code
  • OBD II P0351 Ignition Coil "A" Circuit Primary/Secondary Malfunction
What does this mean? The ignition coil or coils are responsible for igniting the air/fuel mixture inside the combustion chambers. Without reliable performance from the ignition coil(s) the vehicle will stumble and misfire.
Code P0351 indicates there's an electrical problem in either the primary ( the computer side ) or the secondary ( the spark plug side ) of the Ignition Coil "A" Circuit.
Symptoms
  • Check Engine Light will illuminate
  • Engine idles rough
  • Engine misfires on acceleration
  • In rare cases, the engine may not exhibit noticeable symptoms
Common Problems That Trigger the P0351 Code
  • Defective Ignition Coil(s)
  • Defective Spark Plug(s)
  • Intake Manifold Vacuum leaks
  • Carbon buildup in the Throttle Body air passages
  • Defective Idle Air Control Valve or Electronic Body
Common Misdiagnosis
  • Ignition coil(s) replaced when cause of the malfunction was a vacuum leak
  • Spark Plugs replaced when cause of the malfunction was a vacuum leak

Dec 21, 2014 | Ford Cars & Trucks

2 Answers

The 3 and 6 is not fireing on coil pack


POSIBLE CAUSE O YOU NEED A NEW COIL PACK OR A IGNITION MODULE

Sep 02, 2014 | 2000 Buick LeSabre

1 Answer

Ignition coil problematic primary feed


older post.
how many miles, how many miles for the last tuneup.????

The PCM CREATES spark. on all cars since about 1991.
the only changes are where they hid the IGNITOR.
or how may spark coils you have.
my guess, is your enigne is 3.8L just like my 08
where is the coil pack, well see those spark plug wires.
the go directly to the top mounted coil pack. see that?

the PCM monitors the rail coil , the 3.8 has a 3 COIL pack.
and each coil runs 2 cylinders. like this.
so what is the first thing to do here.
easy , put in new spark plugs.
try doing the tuneups. in the glove box guide.
page 433 , at 102,000 miles. spark plugs and cables.
mine has only 60,000 miles, and they both were bad.
spark plugs and HV, wires so I upgraded to NGK mag wires.
and new NGK plugs.
if it still fails, then try a new coil pack.


HV= high voltage wire sets.

Mar 07, 2014 | 2008 Jeep Wrangler

1 Answer

I have a 2004 Ford Taurus ses with a 3.0 liter v6(not the dohc model either). Today the check engine light came on. I took it to autozone to have the code run and they told me that it could be the primary...


Does the vehicle have coil on plug ignition or coilpack ? And it's not primary or secondary coil malfunctioning It's primary or secondary circuit . I'm assuming it has a coil pack because you say plug wires.
P0350 - Ignition Coil (Undetermined) Primary/Secondary Circuit Malfunction Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in the PCM).
  • Open or short in the Ignition START/RUN circuit.
  • Open coil driver circuit.
  • Coil driver circuit shorted to ground.
  • Damaged coil.
  • Damaged PCM.
  • Coil driver circuit shorted to VPWR.
P0351 - Ignition Coil A Primary/Secondary Circuit Malfunction See the description for DTC P0350. See the possible causes for DTC P0350.
Pull the spark plugs out an look at them , check the gap ,if too wide replace them . If the spark plug gap gets too worn ,the spark won't jump the gap. It will find the least resistance path to ground ,and it will do it inside the coil . Going from the secondary circuit back to the primary coil an to ground through the PCM - engine computer . The PCM has transistors inside that open an close the primary side to ground ,this builds up a magnetic field around the secondary inducing high voltage spark . Well this can short out the transistor inside the PCM . Most of the time that's what these type codes mean . The PCM would need to be replaced an programmed . This can also damage the catalytic converter. Your best bet , take your vehicle to a qualified repair shop.

Jul 21, 2017 | 2004 Ford Taurus

2 Answers

I have no spark.. have replaced crank sensor, computer, coil pack.... cranks over fine just no fire.... also injectors are pulsing with key in on posistion


The coil is good after you check resistance from primary and secondary terminals, but it won't generate spark if there is not pulsing at the primary terminals. You can generate sparks by connecting at the primary coil to 12 volts from the battery. Connect the secondary terminal to a spark plug. Now the primary connection has to make pulses on off continuously (either positive or negative ) to generate the spark from the secondary terminal (now is at the spark plug). If you have spark here then the problem is the ignition module. It is a electronic device to perform the function as you just did to generate the spark. Good luck.

Nov 10, 2009 | 1992 Oldsmobile Silhouette

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