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Causes misfire I recently had P0302 Cylinder 2 Misfire detected on my 07 Audi A4 2.0T Cabriolet. After scanning the code I took it to the dealer and told them the fault code, because they will charge $135 additional for just scanning. Now after taking almost 2 hours, they say that they have reset the code and I need to drive little bit more to see the fault reoccurs which will "help" them identify which coil is faulty. I am new to all these, I am asking - does this all sounds okay to you, in terms of how the issue is approached? Kind Regards /a

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  • 34 Answers

I had same problem with my car about a month ago. Yes coil is faulty . replace coil and replace ht leads.

Posted on Oct 21, 2013

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Posted on Jan 02, 2017

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SOURCE: Need help with Audi A4 2000 1.8t Misfiring and Fuel/Air Problems?

replace the speed idle sensor

Posted on Feb 28, 2009

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SOURCE: Have fault code P0302 on 2001 VW Beetle. No it is

this car has what is called coil over ignition which means no plug wires or cap so if it is missing swap coil from cyl 2 and any other cyl then clear code and rerun car till light comes back on then check code if it is still cyl 2 missfire then replace that plug if code changes to the cylinder that 2's coil was on then replace that coil <that car does have a recall for coils> if car is not missing and you have that code most likely isnt an ignition problem but will have a small vaccume leak so check the small hoses for leaks. very common for fuel preasure regulater vaccume hose to brake from age

Posted on Mar 22, 2009

  • 31 Answers

SOURCE: P0302 Cylinder 2 Misfire Detected in 2006 f150 STX

Looking at the Engine on a ford is different from a gm. The correct cylinder numbers are 1234 from front to back on the passenger side and 5678 front to back on the driver's side

Posted on Apr 14, 2009

  • 1348 Answers

SOURCE: 1998 toyota tacoma P0302 Cylinder 2 Misfire

do a compression test on the engine.if that checks out ok then the problem is either an ignition problem or a bad fuel injector

Posted on Jun 15, 2009

  • 144 Answers

SOURCE: 2004 Audi A4 misfire

it is always a good idea to stay with o.e.m parts and yes there is updated parts in the newer coils. and yes the M.A.F will also cause misfire faults but will not make check engine light flash or make car shake and shudder. also check you wire harness going to your coils make sure your ground wires are not cracked. That could be the main culprate. good luck hope this helps

Posted on Sep 03, 2009

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1 Answer

P0411 p0300 p0302


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I would like to know what these codes mean


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P0174 System Too Lean (Bank 2)
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Random multiple misfire P0300, P0302, P0304 on 2006 Kia Rio


A competent mechanic will check all probable causes associated with these DTC codes.
Code P0300: Random-Multiple misfire detected. Probable causes:
1. Vacuum leaks, damaged hoses, or improper routing
2. Fuel contamination
3. Ignition system - Ignition module, coil, spark plugs and wires
4. Fuel system
Code P0302: Cylinder 2 misfire detected. Probable causes:
1. Control unit software in need of updating
2. Faulty PCM or ECM
3. Faulty fuel injector
4. Ignition system
5. Fuel system
Code 0304: Cylinder 4 misfire detected. Probable causes:
1. Control unit software in need of updating
2. Faulty PCM or ECM
3. Faulty fuel injector
4. Ignition system
5. Fuel system

Be sure the invoice enumerates all of these probable causes as having been checked. Also, some of the replacement parts installed earlier may be faulty.

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P0440 and P0302 scan code - changed plugs and wires. Changed emission purge valve. All vacuum lines appear to be OK. Fuel lines are not leaking. Good spark to cyclinder two when using spark tester. ...


Cylinder 2 Misfire Detected po302 . Evaporative Emission Control System po440 The last digit on a misfire code indicates the cylinder number. A code P0302, for example, would tell you cylinder #2 is misfiring. Chances are the misfire is due to a weak ignition coil. Did you change the pcv valve? Remember to put the o-ring on the new one or this problem will happen.

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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

Missing,viborating


Misfire could be a number of things:
a) spark plugs - change them if used over 15K miles - inspect/regap.
b) spark plug wires - change them if over 15K miles - inspect
c) ECM (electronic control module) - test with HEI (high energy ignition) tester.

The vibrating tells me that the engine is running on less than its normal compliment of cylinders - the shaking is produced by the imbalance caused in the engine by one (or more) cylinder(s)
not firing at all.

The "Check Engine" light probably is coming on due the the misfire condition. Go to Pep Boys or
Advance Auto Pats, where they'll tell you (free) your codes causing the "Check Engine' light to be
lit - the code coming from your truck's computer will probably be one or more of:
P0300 - Random/Multiple Cylinder misfire detected
P0301 - Cylinder 1 misfire detected
P0302 - Cylinder 2 misfire detected
P0303 - Cylinder 3 misfire detected
P0304 - Cylinder 4 misfire detected
P0305 - Cylinder 5 misfire detected
P0306 - Cylinder 6 misfire detected
P0307 - Cylinder 7 misfire detected
P0308 - Cylinder 8 misfire detected
P0313 - Misfire detected with low fuel

Jun 23, 2011 | 2009 Ford F-150

1 Answer

Vehicle missing,shaking,engine light comes on


Misfire could be a number of things:
a) spark plugs - change them if used over 15K miles - inspect/regap.
b) spark plug wires - change them if over 15K miles - inspect
c) ECM (electronic control module) - test with HEI (high energy ignition) tester.

The shaking tells me that the engine is running on less than its normal compliment of cylinders - the shaking is produced by the imbalance caused in the engine by one (or more) cylinder(s)
not firing at all.

The "Check Engine" light probably is coming on due the the misfire condition. Go to Pep Boys or
Advance Auto Pats, where they'll tell you (free) your codes causing the "Check Engine' light to be
lit - the code coming from your truck's computer will probably be one or more of:
P0300 - Random/Multiple Cylinder misfire detected
P0301 - Cylinder 1 misfire detected
P0302 - Cylinder 2 misfire detected
P0303 - Cylinder 3 misfire detected
P0304 - Cylinder 4 misfire detected
P0305 - Cylinder 5 misfire detected
P0306 - Cylinder 6 misfire detected
P0307 - Cylinder 7 misfire detected
P0308 - Cylinder 8 misfire detected
P0313 - Misfire detected with low fuel

Jun 23, 2011 | 2004 Ford F150

3 Answers

I have a 05 VW Pessat with a 1.8L 65K miles on it. I have a random misfire and surge at idle. Code's set: P0300, P0301, P0302 and I seen P0303. This misfire comes and goes. Does not have a dead miss. I...


Try the crank pisition sensor that is vary likely to be the couse of your misfires its working but its intermintly shorting out telling the pcm that you have a misfire and setting the codes

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