Question about 2001 Hyundai Santa Fe

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Hyundai 2.7 P303, P306 at the same time

New plug wires & plugs with less than 10,000 miles. Cyl. 3 & 6 are fired by the same secondary portion of the coil pack. Other Cyls are firing ok. Can crank sensor misfire one segment of coil pack but other two segments fire normally (bad crank sensor?) Or does one secondary misfire from the coil indicate a bad coil pack? Short or open conductor from ECM to Coil pack? Where should I look for the problem before buying parts?

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6ya6ya
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Posted on Jan 02, 2017

  • 2039 Answers

SOURCE: Hyundai Sonata 2002 EF-B V6 2.7L

put the bad coil in the place of a good on and check it after that our be sure hope it help fixya our post thanks pierre

Posted on Jul 15, 2008

ghost45
  • 1280 Answers

SOURCE: 1992 hyundai excel coil will not fire. everything

Go to www.hmaservice.com and register( Vehicle by VIN). Afterward, you have access to shop manuals, service bulletins, wiring diagrams, etc. about your vehicle.

Posted on Sep 23, 2009

  • 1 Answer

SOURCE: My 2000 Hyundai Elantra runs rough and my code

Is your check engine light on? I have the same probelm with my 2002 Elantra. I think it may be connected to the O2 sensor with regulates the emissions, and can cause poor fuel economy. I know I need to get it fixed, but am waiting for funds to do so. Does it seem worse after you fill it with gas? I am just curious since that is what mine does.

Posted on Jan 20, 2010

  • 31 Answers

SOURCE: 2002 Hyundai Sonata Mis-fire on cyl 3 and 3 other error codes.

P1505 and P1507 refer to the Idle Speed Actuator

Posted on Jan 23, 2010

SOURCE: 2003 Hyundai Sonata with 4

P0301 - Cylinder 1 Misfire Detected.

Possible Causes:
- Improper spark plug at cylinder #1
- Insufficient compression at cylinder #1
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #1
- Fuel injector #1 may be faulty
- Intake air leak at cylinder

Possible Solutions:
- Perform Injector Service
- Replaced Spark Plug #1
- Replaced Injector #1
- Replaced Ignition Coil #1

Being you have a heavy gas smell I would look into the injectors. If injector #1 is over producing it can cause a misfire. Test your compression and fuel pressure.

Posted on Jan 17, 2011

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How do I arrange my spark plug wires on my Hyundai Getz go 2002


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Dec 16, 2015 | Hyundai Cars & Trucks

1 Answer

Hyundai 2.7 P303, P306 at the same time


I would say its the coil. A crank or cam sensor could cause one cylinder to miss, or go completely dead, but I doubt it would affect two cylinders. And you would get a code for either sensor.

May 01, 2013 | 2001 Hyundai Santa Fe

1 Answer

Plugs 1 & 4 no fire?


V-6 I ASSUME? MORE THAN LIKELY, 3 COIL PACKS CONTROL 2 CYLINDERS EACH. MAKE SURE YOU ARE GETTING A SPARK FROM THE ONE THAT CONTROLS 1 &4...OR ALL WIRING IS INTAVT
** IF THIS IS A 4 CYL. SAME THING...LESS COIL PACKS IE: ONE COIL PACK FOR 174 AND ONE FOR 2 & 3

Aug 05, 2012 | 2003 Dodge Caravan

1 Answer

Cylinder 1 is misfiring. The plugs and wires have been replaced.


Misfire condition can cause by few items.

1) mis-gap / worn / damaged plug.
One Hyundia and small displacement engine,it can also be loose plug.

2) oil leak / vapor covering the cermaic portion of the plug.

3) clogged air flter. // change interval for small car is 12,000 to 18,000 miles.

4) clogged PCV on // 140,000 or higher mile vehicle

5) worn valve cyclinder // 160,000 miles +

6) worn timing belt with an old water pump //// 140,000 miles+


Please reply with the currrent odomenter reading and recent repair record.

Feb 03, 2011 | Hyundai Motor 2004 Accent

2 Answers

2000 ford mustang code 453 and missfire cyl 5 where is the cyl


a haynes manual from a parts place will show you--or chec the condition of each plug wire-if one looks bad or falls apart--probly need to get all new wires /plugs

Dec 18, 2010 | 2000 Ford Mustang

2 Answers

Enging code came up on my 2004 dodge ram 1500 5.7 Hemi. Said ignition coil E was bad and that I had a misfire in cylinder 3. Replaced coil at cylinder 3 but it's still running rough. Is coil E somewhere...


Have you checked the spark plug itself? --- 5.7L Engine To Remove:
NOTE: Note spark plug cable original positions before removing.
dod_ram15_57_ign_coil.gif

dod_ram15_57_ign_coil_loc.gif

  1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
  2. Clean the area around the coil with compressed air.
  3. Remove or disconnect the following:
    • Battery negative cable
    • Throttle body air intake tube and intake box (if necessary)
    • Coil electrical connector by moving slide lock and pressing on release lock
    • Secondary high-voltage cable from coil
    • Mounting bolts
    • Coil from cylinder head opening by twisting
To Install:
  1. Clean area around spark plugs with compressed air.
  2. Apply dielectric grease to inside of boots.
  3. Install or connect the following:
    • Ignition coil to cylinder head opening
    • 2 mounting bolts
      1. Torque to: 106 inch lbs. (12 Nm)
    • Coil electrical connector
    • Cable to coil
    • Throttle body air tube and intake box (if necessary)
    • Battery negative cable
---
Distributorless Ignition System General Information This vehicle uses two different types of ignition systems. The 3.7L, 4.7L, and 5.7L engines do not use a conventional distributor. The 5.9L engine uses a conventional distributor. The ignition system is controlled by the Powertrain Control Module (PCM) on all engines. Procedures in this section are for the 3.7L, 4.7L, and 5.7L engines; please see the section on Distributor Ignition Systems for procedures for the 5.9L engine.
Distributorless ignition systems (EI) are used on many current engines. This system uses the waste spark method for distributing secondary voltage. In a waste spark system, an individual coil is used to fire one pair of engine cylinders simultaneously. These cylinders are known as companions, since each of their pistons is at TDC at the same time. On a typical V6 engine for example, cylinder 1 is at TDC compression while cylinder 4 is at TDC exhaust. This is also true of cylinders 2 and 5 as well as cylinder 3 and 6.
The cylinder on the compression stroke is known as the event cylinder, while the cylinder on the exhaust stroke is called the waste cylinder. Since secondary resistance is very low in the cylinder on the exhaust stroke, little voltage is required to fire the plug. For this reason, the majority of available voltage is consumed by the cylinder on the compression stroke.
One spark plug is attached to each end of the secondary coil winding via the spark plug wires. This series circuit arrangement causes one of the plugs to fire in a forward direction (center electrode to outer electrode), and the other spark plug to fire in a reverse direction (outer electrode to center electrode). The firing voltage requirements on the waste spark ignition are significantly greater than a traditional ignition system primarily because it takes 30% more energy to fire a plug reverse polarity. When a spark plug is fired backwards, it fires from the outer electrode to the center electrode. This is a high resistance path since the electrons do not flow as easily from a cold, dull surface such as the outer electrode to a hot, sharp surface like the center electrode.
Since the coil and plugs are arranged in a series circuit, a typical plug gap of .050" results in a total gap of .100" for the whole circuit that includes two spark plugs for the companion cylinders. The waste spark can overcome this added resistance by producing high secondary output voltages due to low resistance in the primary winding. Another reason higher secondary ignition voltage is required is cylinder pressure; specifically, the lack of it. Generally, event cylinders require 10 to 12-kV to initiate current flow across the spark plug gap, while only 2 - 3-kV is needed to fire the waste cylinder. Therefore, the air gap in the waste cylinder creates no more resistance than the rotor gap does in a conventional ignition system.
There are two different methods used for coil trigger. One method sends the crankshaft sensor signal directly to the ignition module to activate the coils, while the other sends the crankshaft sensor signal to the PCM and the PCM controls ignition operation either directly or through a separate ignition module.
Waste spark ignition advantages
  • It has fewer components than conventional distributor-type ignition systems.
  • No mechanical adjustments to set ignition timing.
  • No mechanical load (turning the distributor shaft).
  • No unwanted timing variations caused by gear lash or other worn distributor components.
Another advantage of waste spark is longer coil life. To illustrate this point, consider a six-cylinder engine with conventional ignition. At 3000 RPM, the coil must fire 9000 times per minute. This is calculated by dividing the engine speed by 2, since the cam turns at half crank speed, and then multiplying the distributor RPM by the total number of engine cylinders.
In contrast, the coils on a six-cylinder engine with waste spark only work a third as hard. This is because there's a coil for every two cylinders and each coil fires every crankshaft revolution. This means that at 3000 RPM, the coils only fire 3000 times per minute. This allows each coil to operate with less dwell (time that the coil is energized), resulting in less heat buildup and longer life.
Coil Over Plug System The coil over plug system was developed so that spark and spark timing could be better controlled on an individual cylinder basis. Each cylinder has an ignition coil mounted directly above the spark plug on the cylinder head cover. A short suppresser/connector replaces the spark plug wire and links the coil to the plug. There are different methods used for primary triggering. Some manufacturers use a combination coil/module, which means each coil has its own control circuit that is activated by the PCM. Others use remote mounted modules to trigger the coils.
Each individual coil is allowed to saturate while all other cylinders fire. For a V-8 engine, this allows a period of seven firing events for coil saturation, compared to three events for the same V-8 engine with a waste spark system. The coil over plug system also benefits from a minimum amount of energy lost, due to the resistance of spark plug wires.
Coil Near Plug System The coil near plug system also features multiple ignition coils. An ignition coil/module is mounted in proximity of each cylinder. There is a short length of spark plug wire between the coil and the spark plug.
Each ignition coil/module has its own control circuit and is activated sequentially by the PCM. All timing decisions are made by the PCM. This includes both ignition timing and duration of the spark.

Nov 03, 2010 | 2004 Dodge Ram 1500

1 Answer

New head plugs and wires coil packs missing on #1 & #2 cyl


hi from uk i assume you have done all the above work correctly? and the leads from coils are correct firing order 1 3 4 2 ? CAMBELTtiming set correctly etc as you say this has happened since cyl head renewed and miss fire is on Nos 1+2 cyl's this normally suggest now after all work u have done and assume compressions are ok ? i had such a fault on a customers mini some years ago who had done exact type of job as you described this fault turned out to be the inlet manifold gasket had split between cyls inlet ports and resulted in missfire on 2 cyls adjoining on removal of manifold the gasket had been damaged whilst reassembling new gasket cured missfire which had caused weak mixtur on both cyls ie on induction more air being drawn via cracked gasket on each cyl and as your engine if injection same problem?? might be worth checking?? hope this throws some light on the problem?

Dec 02, 2009 | 1999 Hyundai Accent

1 Answer

Getting firing code error for cylinders 1,3 & 5 on my 1999 Sonata


I was wrong about the distributor being round (I was thinking about my other car). I found variations about the firing order but after troubbleshooting, varified the plug wiring order from the front of the car is 1 - 4 - 5 - 2 - 3 - 6 not 1 - 4 - 5 - 2 - 6 - 3 found on several web sites. From the front of the car looking at the engine, the back three cylinders by the firewall going from left to right are 1, 3, 5. The front three are 2, 4 & 6.

Nov 07, 2009 | 1999 Hyundai Sonata

2 Answers

1998 saturn sc2 P0303 code just came up. already


p303 is a cylinder 3 missfire I woul first check the coil and then the ingnition module, Then if this dont work you could have a bad injector. If after testing and still no fix you should check the compression in that cyl.

Jul 09, 2009 | 1998 Saturn SL

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