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I have code p0306 & p1448 1998 qx 4 - 2004 Infiniti QX4

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Code p0306-misfire detected in cylinder #5 code p1448-vlt suppy output too low.

Posted on Dec 29, 2010

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Code p0306 mean


Bob, P0306 code means that the the vehicle's computer has detected engine's cylinder #6 is not firing properly. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
http://www.obd-codes.com/p0306
P0306 OBD II Trouble Code Cylinder 6 Misfire Detected

Aug 17, 2016 | Cars & Trucks

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Misfiring. Error codes p0306, p0351, p0352


p0306 refers to cylinder 6 misfire detected===causes engine mechanical fault--wiring---ignition/fuel system--injector ---ECT/MAF sensor---ECM
IF there was a mechanical fault (hydraulic follower ) or valve it would be there most of the time and not just on start up. Possible injector fault but I would be inclined to check out the MAF sensor codes p0351 &2 refer to ignition coil A and ignition coil B primary /secondary--circuit malfunction === causes --wiring--ignition coil--ECM ( all causes for the both)
going on this check out the coils and check that the wiring and connections are clean and tight. basically I would be inclined to change out the coils and check /replace the MAF sensor.
change the engine --sounds like advice to get some extra money out of you.

Apr 27, 2014 | 2005 Ford F-150

1 Answer

I would like to know what these codes mean


P0171 System Too Lean (Bank 1)
P0174 System Too Lean (Bank 2)
P0301 Cylinder #1 Misfire Detected
P0302 Cylinder #2 Misfire Detected
P0304 Cylinder #4 Misfire Detected
P0306 Cylinder #6 Misfire Detected

Mar 12, 2014 | 1999 Ford Explorer

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P0306


Switching coils is not the way to resolve that issue
At home,no experience,no test equipment, all you
can do is walk a new coil, one cylinder at a time &
drive at least 20 miles in hot weather if possible
You don't have the ability to check fuel trim or an
easy way to check for vacuum leaks.
You also can't check cylinder contribution for
mechanical problems,that should happen first
Walk a new coil,putting back the old one as you go
The codes are not always correct or you get many
that make no sense.
If one coil is bad & 7 years old the others are not
far from acting up also
Those coils do many different acts on different engines
No PO300 will tell you if you have a bad coil or what one
I have seen professional scan tool software not work,
& your back to the coil walking

Jul 21, 2013 | Toyota Camry Cars & Trucks

1 Answer

I have a 2004 chrysler concorde. i got three code readings does anyone know what they are? they are p0700, p0871 and p0306


P0306 indicates misfire #6 cylinder detected
P0700 indicates a problem with the transmission or controller
P0871 indicates a problem with the transmission overdrive

Dec 06, 2011 | Dodge Cars & Trucks

1 Answer

I have a 2001 ford taurus ses with a 6 cyl 3.0L DOHC engine. Getting error codes P0304,P0305 and P0306 from check engine light. Light alternates between flashing and steady. Lots of hesitation and...


Codes say Cylinder 4, 5 & 6 are not firing. This could be a spark issue or a fuel issue or a mechanical engine failure. Is compression zero? Did they use a compression tester?

Aug 02, 2011 | 2009 Ford F-150

1 Answer

Just got a 2001 Lincon Towncar /Exec-L series from a friend. The ABS, Check engine & Brake lights kept coming on & off. Ran codes and got U1039 & P0306. Replaced the #6 Coil and all plugs(P0306...


Congratulations on getting it to run like a champ.

The ABS light is likely due to a bad wheel speed sensor, which would be consistent with the speedometer coming and going.

Try to get an Actron Brakescan Tool for about $99 or so plus shipping, and you can scan the codes and get English explanations of which circuit is bad.

I purchased one to diagnose and repair a 1997 Cadillac Deville. The Actron Brakescan tool covers most American vehicles from 1996 to 2005. So, this diagnosis should be right up the alley of this tool.

One can go from there as far as checking out the sensors and the wiring more closely.

Oct 09, 2010 | 1990 Lincoln Mark VII

2 Answers

P0134 /P0306 Codes on Chevy Truck 1998


in AKO look under Self Help> My Library > Fix Your Car > then go to Chiltons or ARRC link from there.

Jun 22, 2009 | 1998 Chevrolet K1500

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