Question about 1994 Ford F150 Styleside Supercab

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1994 F-150 no fire from coil

New TPS, distributer, ICM, PCM ,Coil, Plug Wires,PCM Relay still no fire from coil

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  • johndcoll Apr 16, 2009

    it has started and run since posting info but after shutting off and retry start no fire again so doubt fuse or link unless bad connection have tried wiggle test no luck Thanks for suggestion

  • Anonymous Mar 28, 2014

    new dist.,coil wires,icm,tps.ikv

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Posted on Apr 15, 2009

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Where is camshaft position sensor on 2002 Pontiac grand am se ecotec 2.2


This vehicle does not have a cam sensor .The ICM provides a synthesized cam signal to the PCM based on these inputs. The PCM uses the cam signal to synchronize fuel injection.

The powertrain control module (PCM) supplies a signal on each of the ignition control (IC) timing control circuits to the ignition control module (ICM). The ICM fires the correct ignition coil at the correct time based on the signals. The ICM detects if cylinder 1 or cylinder 3 is on the compression stroke by sensing the secondary voltage and polarity of each side of the ignition coil. The ICM detects this voltage with sensing circuitry integrated into each ignition coil. The higher voltage is on the compressing cylinder. This is called compression sense ignition. The ICM provides a synthesized cam signal to the PCM based on these inputs. The PCM uses the cam signal to synchronize fuel injection.
This system consists of the following circuits:
• An ignition voltage circuit
• A ground circuit
• A camshaft position (CMP) sensor signal circuit
• An IC timing control circuit for cylinders #1 and #4
• An IC timing control B circuit for cylinders #2 and #3

DTC P0340
This ignition system does not use a conventional camshaft position (CMP) sensor that detects valve train position. The ignition controls module (ICM) detects when #1 or #3 cylinder has fired on the cylinders compression stroke using sensing circuitry integrated within each coil. The sensing circuit detects the polarity and the strength of the secondary voltage output, the higher output is always at the event cylinder. The ignition control module (ICM) sends a CMP signal to the powertrain control module (PCM) based on the voltage difference between the event and waste cylinder firing energy. This system is called compression sense ignition. By monitoring the CMP and crankshaft position (CKP) signals, the PCM can accurately time the operation of the fuel injectors. If the PCM receives an intermittent CMP signal from the ICM, the CMP Resync Counter on the scan tool will increment. When the PCM cannot use the information from the CMP signal, a DTC will set. DTC P0341 sets when the PCM detects too many CMP Resyncs within a certain amount of time.

Jul 13, 2017 | Pontiac Cars & Trucks

2 Answers

05 Ford Escape, coils #3 & #4 not firing. We've replaced the battery, spark plugs, alternator, coil packs, & pcm. Had pcm reflashed. Garage said it had to be coil packs, but just replaced coil packs 3


Check engine light on ? Code's ? What engine ? 2.3 l 4cylinder or 3.ol v-6 This vehicle has coil on plug ignition system , not coil packs ! a coil per cylinder . If new coils an still has no spark , has no B+ voltage to the coil or the PCM isn't controlling them . Without testing i'd only be guessing as to the problem .If the repair shop you had it to can only say it had to be the coils , I'd find another shop to take it to !
Autolite Coil on Plug Ignition troubleshooting

Jun 22, 2017 | Cars & Trucks

1 Answer

What should a multimeter read on a continuity test on the coil packs? i'm getting 1.9,1.7,1.7


The multimeter can read the resistance and if it is not open or shorted out, I'd say that your readings are in the normal range, comparing each resistance with each other + or - 10%.

I looked up the resistance readings on my online resource, but they did not list it specifically.
---
I looked up the following on autozone.com:

There are 3 dual-tower ignition coils that are part of the ignition control module (ICM). The ICM contains coil driver circuits that command the coils to operate. The Powertrain Control Module (PCM) controls each dual-tower ignition coil by transmitting timing pulses on the ignition coil control circuit to the ICM for the proper coil to enable a spark event.
  1. Inspect the spark plug wires for proper orientation.
  2. With the ignition OFF, remove the fuel pump relay.
  3. Crank the engine and test for a strong spark on each cylinder spark plug wire using a suitable spark plug tester. Ground the companion cylinder spark plug wire of each cylinder when it is tested.

    If a strong bright blue spark is present on all of the cylinders, remove and inspect all of the spark plugs for proper torque, proper gap, wear, damage, and fouling. Replace the spark plugs if necessary. If there is no spark on any of the cylinders, test the ignition voltage circuit of the Ignition Coil Module (ICM) for an open/high resistance or short to ground, or test the ground circuit of the ICM for an open/high resistance, or a faulty ICM. The wire circuit resistance should measure less than 3 ohms. If there is no spark on any of the cylinders, or spark is weak or intermittent, test the IC circuit for an open/high resistance, or a faulty ICM. The wire circuit resistance should measure less than 3 ohms. If spark is present on one or more of the cylinders, inspect and test the spark plug wires for arching, cuts, rubbing on other components, and proper resistance. If all tests are normal, then the system is operating correctly.
    ---

Oct 08, 2010 | 2000 Chevrolet Venture

1 Answer

It has no power to coil and the voltage to the tps and iat and temp sensors is to high 5.4 volts allready replaced the pcm


Check the (automatic shutdown relay) in the power distribution center for power when the key is in the on position. It controls the power to the coil,fuel pump,injectors,oxygen sensor. To check the relay, remove it from the panel. check the location of #30 corresponding to location of pin on relay. using a test light check to see if you have power on panel. Should have voltage, then check #86 on panel with the key on. It should have power. If no power then check for a blown fuse. Connect an ohm meter to the relay on terminal 86 and 85 and check the resistance. there should be 75 ohms resistance. Then check for continuity between terminals 30 and 87. There should be no continuity. Using jumper wires connect battery voltage to terminal 86 and ground terminal 85 to verify that there is continuity between terminals 87 and 30. If there isn't, replace the relay. Hope this will help you.

May 15, 2010 | 1996 Dodge Ram

1 Answer

How do you remove the ignition coil


Each ignition control module (ICM) has the following circuits:
An ignition 1 voltage circuit A chassis ground An ignition control circuit for each cylinder A low reference circuit
The PCM controls spark by pulsing the ignition control circuits to the ICM to trigger the coils and fire the spark plugs. The PCM and ICM are internally protected against shorts to power and ground on the ignition control circuits.

The spark plugs are connected to each coil by a short boot. The boot contains a spring that conducts the spark energy from the coil to the spark plug. The spark plugs are tipped with platinum for long wear and higher efficiency.


Ignition Control Module (ICM) Connectors

248af41.jpg

Fig. Ignition coil locations 2001-2004 4.8L, 5.3L, 6.0L Engines



Removal & Installation
2.2L (L61) Engine
  1. Turn OFF the ignition.
  2. Remove the accelerator cable from the bracket.
  3. Remove the accelerator cable bracket bolt.
  4. Remove the accelerator cable bracket.
  5. Disconnect the ignition control module (ICM) harness connector.
  6. Remove the ICM retaining screws.
  7. Remove the ICM from the ignition coil housing.

To install:
  1. Install the ignition control module in the ignition coil housing.
  2. Install the ICM retaining screws. Tighten the retaining screws.
  3. Connect the ICM harness connector.
  4. Install the accelerator cable bracket.
  5. Install the accelerator cable bracket bolt. Tighten the retaining screws.
  6. Install the accelerator cable to the bracket.

2.2L (Ln2) Engine
  1. Remove the air cleaner outlet from the air cleaner.
  2. Remove the ICM electrical connectors (1) and spark plug wires (2).
  3. Remove the ignition coils bolts (3).
  4. Remove the ignition coils and ICM assembly.
  5. Installation is the reverse of the removal procedure.

2.4L Engine
  1. Disconnect the negative battery cable.
  2. Remove the accelerator cable from the hold down clip.
  3. Remove the cruise control cable, if applicable.
  4. Remove the bolt from the fuel line retaining clip.
  5. Disconnect the 11-pin harness connector for the ignition control module (ICM).
  6. Remove the bolts from the ignition coil and the ICM assembly-to-camshaft housing.
  7. Remove the ignition coil and ICM assembly from the engine.
  8. Remove the screws that retain the housing to the cover.
  9. Disconnect the coil harness connector from the ICM.
    CAUTION When removing the housing from the cover, make sure the ground strap stays in place.
  10. Remove the housing from the cover.
  11. Remove the screws that retain the ICM to the cover.
  12. Remove the ICM from the cover.

    9f8592c.jpg
    Fig. Removing the ICM from the camshaft cover

To install:

CAUTION DO NOT wipe grease from the module or coil if the same module is to be replaced. If a new module is to be installed, a package of silicone grease will be included with the module. Spread the grease on the metal face of the module and on the cover where the module seats. This grease is necessary for module cooling.
  1. Install the ICM to the cover.
  2. Install the screws that retain the ICM to the cover.
  3. Install the ground strap, if necessary.
  4. Connect the ignition coils connector to the ICM.
    CAUTION When installing the housing to the cover, make sure the ground strap stays in place.
  5. Install the housing to the cover.
  6. Install the screws that retain the housing to the cover.
  7. Install the spark plug boots and the retainers to the housing, if necessary.
  8. Install the ICM assembly to the engine while carefully aligning the spark boots to the spark plug terminals.
    CAUTION The ICM cover bolts must be installed using isolator washers with the rubber side facing down.
  9. Install the bolts that retain the ICM assembly to the camshaft housing after coating the bolt threads with LOCTITE, or equivalent. Tighten the bolts to 16 ft. lbs. (22 Nm).
  10. Connect the ICM 11 pin harness connector.
  11. Install the bolt to the fuel line retainer clip.
  12. Install the accelerator cable into the hold down clip.
  13. Install the cruise control cable, if applicable. Connect the negative battery cable.

Hope this help (remember comment and rated this).

Apr 05, 2010 | 2000 Chevrolet Blazer

1 Answer

Change coil, sparkplugs, spark plug wires, icm and still no spark. take off spark plug wire put a good spark plug on it and ground it no spark with everything new.


Coil is bad
inspect for cracks
u could check for spark at the coil wire going into the distributer(center wire )

Sep 24, 2009 | 1992 Honda Accord

1 Answer

Need to know what fires coil 1995 mercury sable both wires to coil have power when key is turned on car cranks no spark from coil new coil what gives the coil extra power to fire


what engine? 3.0L 2 Valve? 4 Valve?
3.4L SHO engine?

The PCM (engine computer) fires the coils, but it is never the cause of a problem. I suspect it is the crankshaft position sensor on the front of the engine by the crank pulley. easy to change.

Crankshaft Position Sensor The crankshaft position sensor (CKP sensor) (6C315) is a variable reluctance sensor triggered by a 36-minus-1 tooth trigger wheel located on the crankshaft pulley and damper. The signal generated from the crankshaft position sensor is called the crankshaft position (CKP) signal, which provides base timing and crankshaft speed (rpm) information to the ignition control module (ICM) (12K072). Base timing is set at 10±2 degrees before top dead center (BTDC) AND IS NOT ADJUSTABLE. The powertrain control module (PCM) (12A650) will use this information with the spark advance information to determine ignition coil (12029) turn on or turn off time.

Sep 15, 2009 | 1995 Mercury Sable

1 Answer

Engine cranks wont start


i do believe that's what it is if it will not let get a diagnostic or if it will not let you access the computer the computer is bad.

Aug 26, 2009 | 1997 Dodge Ram 1500 Club Cab

1 Answer

FIRE ONLY IN 1 AND 4.


try to swap plug wires. Sometimes you will get a new set of wire that are bad. These Wires are New?????

Jan 11, 2009 | 1995 GMC Sonoma

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