Where is ignition coil H on 2004 F150 5.4

Ford F-150 FX4 2002: Ignition Coil Locations ... - JustAnswer

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May 17, 2011 - The Ignition Coils are labeled by alphabet = number. For example, A=1, B=2, C=3, etc. P0358 is Ignition Coil "8" or "H". So ...

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2004 f-150 5.4l has code po354 ign. coil d primary/secondary
Oct 22, 2012
2004 f150: currently replaced plugs..crew..dtc..Ignition coil
Dec 16, 2006
Q&A: Ford F150 P0352 Code - Ignition Coil B ... - JustAnswer
Oct 3, 2021
Ford f150 triton 5.4: Hello iron mIke I have a 2004

More here

https://www.google.com/search?q=2004+ford+f-150+coil+pack+a+and+b

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https://www.yourmechanic.com/article/p0358-obd-ii-trouble-code-ignition-coil-h-primary-secondary-circuit-malfunction-by-valerie

https://www.obd-codes.com/p0358

https://repairpal.com/obd-ii-code-p0358-ignition-coil-h-primary-secondary-circuit

P0360 - Ignition Coil '10' Primary/Secondary Circuit Malfunction

Ignition Coil Primary/Secondary harness is open or shorted
- Ignition Coil Primary/Secondary circuit poor electrical connection
- Faulty Ignition Coil Primary/Secondary
- Faulty Engine Control Module (ECM

Read more: http://engine-codes.com/p0360.html#ixzz21fHBlyUw

code p 0193 refers to fuel rail pressure (FRP) sensor---high input===causes ---wiring short to positive ---FRP sensor

code p0358 refers to ignition coil H -primary/ secondary--circuit malfunction ===causes --wiring--ignition coil---ECM

P0354 - Ignition Coil D Primary/Secondary Circuit Malfunction.

Description of DTC:
The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Symptoms:
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation
- Check Engine Light On
- No spark

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM or ECM

Possible Solutions:
- If damage, repair ignition coil circuit
- Replace ignition coil
- Replace PCM or ECM


P0355 - Ignition Coil E Primary/Secondary Circuit Malfunction.

P0356 - Ignition Coil F Primary/Secondary Circuit Malfunction.

P1391 - Not a valid obd code.
B1391 - Oil Level Switch Circuit Failure
C1391 - Not a valid obd code.
U1391 - Not a valid obd code.
Its possible you may have misread this code. If it is B1391 that would be the only code with 1391 for your vehicle.

P0351 - Ignition Coil A Primary / Secondary Circuit Malfunction. The ignition signal from the Powertrain Control Module or Electronic Control Module is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM

P0352 - Ignition Coil B Primary / Secondary Circuit Malfunction.
Same repair info as P0351.

P0353 - Ignition Coil C Primary / Secondary Circuit Malfunction.
Same repair info as P0351



Solutions:
- If damage, repair ignition coil circuit
- Replaced ignition coil
- Replaced PCM or ECM

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.

P0171 and 174 System Too Lean
Basically this means that an oxygen sensor in banks 1 and 2 detected a lean condition (too much oxygen in the exhaust).

These codes may mean that one or more of the following has happened:
•The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
•There could be a vacuum leak downstream of the MAF sensor.

•In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling.
•Inspect all vacuum and PCV hoses, replace if necessary
•Check for a dirty fuel filter and proper fuel pressure

P0358 Ignition Coil H Primary/Secondary Circuit Malfunction
Code P0358 is for cylinder #8.

Inspect the spark plug, coil, and coil boot on that cylinder for signs of damage. Replace as needed.

If no problems are found with the components, check the wiring harness from the coil to the Powertrain Control Module (PCM).

Potential Causes: Failed coil or boot
Failed spark plug
Harness problem

Hi...
On your HUMMER . the CODE P0358. refer to Electrical problem.
Or malfuntion of the ignition coil. cylinder # 7.. The last one in Driver side. Start from Front to Back. The firing order is: Driver side, 1,3,5,7,. Passanger Side 2,4,6,8.
Primary circuit. Is the Spark Plug Wire.
Secondary circuit. Is the Electrical connector on the Ignition Coil.

Check the condition of the Spark plug, Spark plug Wires. and ignition coil. and the ignition coil Electrical connector.

OK.. I hope this help on your problem.
Thank you for use fixya.