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Why won't my car start?

Reads DTCs P0300, P0302, P0306

Posted by Anonymous on

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  • Cars & Trucks Master
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There are many causes for this OBD code. All 3 codes are miss fires. po300 random misfire, po302 misfire on cylinder 2, po306 misfire on the 6 cylinder.

  1. Troubleshooting the spark plug wires.
  2. Troubleshooting the ignition coil packs sitting on top of the ignition control module (ICM). And check the spark plugs also,If no spark no start of car. If it getting fuel and a good spark then it will start. check coils for spark to plug wires. God-Bless!

Posted on Apr 25, 2015

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  • Cars & Trucks Master
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P0300 multiple misfire
P0302 misfire cylinder 2
P0306 misfire cylinder 6

Posted on Apr 25, 2015

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Posted on Jan 02, 2017

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1 Answer

2003 jeep liberty 3.7 code po300, po302 what does this mean


These numbers are OBD codes. They are misfire coding.
There is a youtube video to assist with troubleshooting.
Trouble shooting misfire Code P0300 P0301 P0302 P0303 P0304 P0305 P0306...

Good luck.
Semper Fi,
Z

Jun 04, 2017 | Jeep Cars & Trucks

1 Answer

2003 jeep liberty po302


Answered in another location. This is a misfire code for #2.
Here is a video to assist in trouble shooting.
Trouble shooting misfire Code P0300 P0301 P0302 P0303 P0304 P0305 P0306...
Semper Fi,
Z

Jun 04, 2017 | Jeep Cars & Trucks

2 Answers

Missfire cyl 1 An 4


Replace the coil pack.

May 28, 2015 | 2005 Chevrolet Aveo

1 Answer

Making noise


check the coil if coil is ok spark plug if there are ok may damage in emission valve or injectors code relate it to the problems are p0300 p0301 p0302 p0303 p0304 p0305 p0306 p0307 p0308

Apr 01, 2014 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

I have a 2002 Jaguar X-type. The check engine light came on and it has been acting jumpy/shaky. I recently took it to be diagnosed and the codes I recieved back were P1314, P1316, P1111, and P0302..What do...


All fault codes can be checked out at http://www.bluejag.co.uk but here are the results for some of yours. You can ignor P1111. Looks like a faulty plug or coil pack cylinder 2

Fault Code:- P1314 Indicates a Power-train fault


The fault is generally due to a problem in the Ignition or Misfire area


Fault Description: Misfire rate catalyst damage -bank 2 NOTE: This DTC will flag only when accompanied by an individual cylinder misfire DTC: P0300 - P0306

Action of ECM:- ECM Default:- Maximum engine speed reduced


After clearing the DTC, complete the Misfire monitor drive cycle
Check for a reoccurrence of fault DTC.


Possible Fault:- Cylinder compression low Worn camshaft / broken valve spring(s) Fuel delivery pressure (low / high) Fuel injector(s) restricted / leaking Fuel injector(s) continuously open Fuel contamination Fuel injector circuit fault(s) (Injector DTCs also flagged) Spark plug failure / fouled / incorrect gap ECM to ignition coil primary circuit fault (Cylinder misfire detected DTC also flagged) Ignition coil failure
Fault Code:- P1316 Indicates a Power-train fault


The fault is generally due to a problem in the Ignition or Misfire area


Fault Description: Misfire excess emission NOTE: This DTC will flag only when accompanied by an individual cylinder misfire DTC: P0300 - P0306

Action of ECM:- none


After clearing the DTC, complete the Misfire monitor drive cycle
Check for a reoccurrence of fault DTC.


Possible Fault:- Cylinder compression low Worn camshaft / broken valve spring(s) Fuel delivery pressure (low / high) Fuel injector(s) restricted / leaking Fuel injector(s) continuously open Fuel contamination Fuel injector circuit fault(s) (Injector DTCs also flagged) Spark plug failure / fouled / incorrect gap ECM to ignition coil primary circuit fault (Cylinder misfire detected DTC also flagged) Ignition coil failure

Fault Code:-
P0302 Indicates a Power-train fault


The fault is generally due to a problem in the Ignition or Misfire area


Fault Description: Misfire detected ?€" cylinder 2

Action of ECM:- none


After clearing the DTC, complete the Misfire monitor drive cycle
Check for a reoccurrence of fault DTC.


Possible Fault:- Refer to P0300 Possible Causes

Aug 25, 2011 | 2002 Jaguar X-Type

1 Answer

My honda odyssey 2002 has all this codes p0300,p0301,p0302,p0303,p0304,p0305,p0306,pp0307. Pls, what shall i do first 'cause i spend too much for gas.


These codes are for a cylinder misfire. Take it to a pro to find out which one(s). Could be an injector or an ignition coil

Aug 20, 2011 | 2002 Honda Odyssey

1 Answer

Start and diesss


p0456: evap system. sensor failure
p0172: evap system. intake blocked
p0778: exaust valve control. solenoid/ecu faukt
p0300: cylinders misfire. check ht/ignition leads
p0301,303,304,305,306: same ht leads

hope this helps..

Nov 25, 2008 | 2006 Hyundai Santa Fe

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