Hyundai 2.7 P303, P306 at the same time

How to change spark plugs hyundai accent 01 - 05 - YouTube

? 3:18
https://www.youtube.com/watch?v=tU2vwisJ7v4
Feb 16, 2012 - Uploaded by PNBNC
I filmed this right after changing my old plugs, I figured it was easy enough to film and some people can profit from it. for a ... Coil, you mean wire lol ... When you go to put the spark plug back in, never start it with the ratchet.

How To Replace Change Install Spark Plugs 2001-06 ...

? 3:17
https://www.youtube.com/watch?v=yVV2KcPDFIo
May 14, 2013 - Uploaded by 1A Auto Parts
... spark plugs. This video is applicable to the 2001, 2002, 2... ...spark plugs. This video is applicable to the 2001, 2002, 2003, 2004, 2005, 2006 Hyundai Elantra 2.0L. ... +queentonks A little know-how can go a long way. We're glad ... When do you think is good to replace my spark plugs wires? My spark ...
2001 Hyundai Accent Firing Order: Engine Mechanical ...www.2carpros.com/.../hyundai-accent-2001-hyundai-accent-firing-orderApr 23, 2009 - Engine Mechanical problem 2001 Hyundai Accent 4 cyl Two Wheel Drive Manual 95000 ... Now I'm trying to figure out how they go back on. How do I find out the Engine Firing Order for my car - Hyundai Accent 2001 1.5L?Which is cylinder 1 - 1.6 Accent - Hyundai Forum: Hyundai ...www.hyundaiperformance.com/.../16837-cylinder-1-1-6-accent.htmlJan 13, 2003 - 3 posts - ‎3 authorsFrom what I read though, the coil pack is configured as 1 4 2 3. I'm assuming the first wire on the coil pack goes to cylinder 1. Can anyone ...

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.

Easy way to check plugs wires while driving, get 4 or 6 small neon lamps depending on how many cylinders,the neon lamps used in appliances to show they are on are good NOT LEDs.
Remove resistors from neon and connect one side of neon lamps together and earth to body, take other side of each lamp and solder long single telephonr wire and wind about 10 turns around each plug wire insulation a little way from plug leave end of this wire disconnected. make sure the end of wire does not earth anywhere on body leave unconnected. the high voltage going through plug wire will induce enough voltage to fire neon and show plug works if one neon does not flicker as plug fires it the bad one.
This will only show electrical misfire not injector problem.
The best time to do this test is at night neons will flicker bright at night. As a mechanic how to check injector and injector voltage.

Look for an intake leak.

On the V6 engine The drivers side plugs are easy although the passenger side will require you to remove the intake boot and the coil packs, easily done with a 10 mm socket and ratchet. Disconect the coil pack connectors by depressing the plastic clip and pulling them off one by one on the three coil packs . leave the plug wires attached and pull the coil pack straight up and off the spark plug.Blow out the area around the plug with compressed air to prevent debris from entering engine when the plugs are removed. Use a 5/8 spark plug socket and a 8 inch extension bar on your 3/8 ratchet at remove the plugs. use anti seize on the new plugs, gap the plugs to manufacturer specs and install your new plugs 2. If its a 4 cyl engine its actually a bit more difficult. The intake boot assembly has a bracket that bolts to the valve cover and side of the engine and you must remove it to access the 4 coil packs on top of the engine. once again the coil pack wires must be disconected and the coil packs un bolted and removed from the valve cover to access the plugs. Blow all dirt from around plug with compressed air to prevent foreign objects or dirt from entering the engine when you remove the spark plug , once again use a 3/8 ratchet and an extension with your 5/8 spark plug socket and remove plugs, use a small amount of anti seize compound on the threads of the nes plugs and gap them to manufacturer specs before installation. Also while the coil packs are off,, Inspect them for ARC Tracing a white residue and line may form on the coil pack Tip/boot if you see alot of ARC tracing Id suggest replacing that coil pack. Especially if you have a misfire condition.

A flashing check engine light is a critical indicator. That usually means that something went wrong that will damage the emission control system... and that is usually an ignition issue. First off, the OEM plug your car calls for is an NGK irridium... NOT BOSCH and not anything with more than 1 prong. Those NGKs are like 2 bucks and they are the proper plug. Make sure you have these plugs and make sure they are gapped to .028. Next, my suggestion is put all the new stuff on again. Drive it to autozone and have them delete all the codes. Drive it around until the check engine light comes on again, then immediately go back and read the codes. The ECU is smart enough to know which cylinder is misfiring. On these cars, I think they have three banks of two... meaning one "coil" inside the coil pack operates two of the cylinders. So if you get multiple misfires, it's the coil. If you get one misfire it's probably an individual plug wire or plug. Good luck.

A P0306 code means that the the ECM has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #6.

A code P0306 may mean that one or more of the following has happened:
Faulty spark plug or wire, Faulty coil (pack), Faulty fuel injector, Burned exhaust Valve, Poor compression, and Defective computer. 

Check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the Caravan, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). The number six cylinder is the one towards the radiator and drivers side. If you are going to change all the plugs and wire keep me posted, be glad to help. Good luck and hope this helps, P0300 just means multi miss fire. 

On the magnavox coil pack the opposite plug on the coil pack fires at the same time. If it is dead only on one side it may be the coil pack {six terminals on one brick looking unit.}

P0306 is a misfire on cylinder number 6. The fact that you have oil on those plugs may or may not be causing it. The oil on the plugs is because of a leaking "internal" valve cover gasket. First thing I'd do is change the valve cover gaskets. Audi will murder you if you want them to do it (I've heard of people quoted $700 or more for this job). It's VERY easy to do. You can order the gaskets from www.ecstuning.com or www.purems.com for about $25 per side. I'd change them for sure, as they're a known issue on these cars.

Now, if your new plugs and changing the gaskets (and cleaning up of course) doesn't fix the misfire, you need to swap coil packs around and see where the code goes. The coil packs are the three parallel items on the top front center of the engine under the beauty cover. Trace the #6 wire back to see which coil pack it goes to. Then swap that pack with another pack, clear the codes, and fire up the car. See if the check engine light comes back and if so, scan the car to see what codes come up. If you still get P0306, then the failure didn't move, and the coil pack is not the issue (in your case, it's likely to be the wire, since you have new plugs and swapping coils didn't work). If the misfire moved to a different cylinder (one which is now hooked up to the coil pack that was originally firing the #6 cylinder) then that coil pack is bad and must be replaced (another known issue on the A4).

2.3 and 2.4 has idi ign.syst. mounted directly on top of plugs,2.2 coil pack cylinder numbers are marked on it,from left of elect. connector on coil pack is 2-3-1-4where spark plug wires go,on block, cyl. from drive belt side is 1-2-3-4,timing firing order is1-3-4-2