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2004 vw beetle misfires when cold

Had codes p0300, p0304, p0303. changed plugs and wires a couple of months ago. secondary air pump hose was off

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Posted on Jan 02, 2017

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SOURCE: Misfire with error codes P0300,P0302,P01303, P0102, P0748

have you checked the wires for holes.

Posted on May 28, 2009

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Hobbit_who
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SOURCE: throwing misfire codes p0300 p03001 p03002 p0303 p0304 on 2009 vw jetta

You are having a MAJOR ISSUE.

Dirty Fuel
Electrical Problem

Did you Jump start a car?

Did your Timing Belt Slip?

Posted on Apr 12, 2013

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2008 Cadillac CTS returning P0303 after replacing spark plug and coil pack


Error Code: P0303
Description:
Cylinder 3 - Misfire Detected
Possible Cause:
Wiring harness, igniter and fuel injector connectors.
Ignition system. (Spark plugs gaps)
Fuel injector No. 3.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression, cylinder No.3. (check valve clearance and throttle plate for excessive wear)
Engine control module (ECM).

Feb 27, 2014 | 2008 Cadillac Cts

1 Answer

97 chevy tahoe running rough update....


code P0303 is a misfire code for cylinder # 3, Possible spark plug, wire/coil or injector problem. P0141, bank1 sensor2, is the upstream oxygen sensor, this code may have been set by the misfire of Cyl #3, the lean condition is being cause by the misfire. Fix the misfire and clear the codes and P0141 should not return. If the vehicle is equipped with Coil over plug system try swapping the coil with any one of the others, test drive and if the misfire code changes to another P0300 code ( P0301, P0302, P0304 etc...) the coil has failed and will need to be replaced.

Jan 23, 2014 | 1997 Chevrolet Tahoe

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

Nov 22, 2010 | 2004 Volkswagen Passat

1 Answer

Check Engine Light see codes below


P0171 is LEAN and P0303 is misfire number 3 cyl. Its time to stop guessing and pay for a correct diagnosis. Find a shop that works on VW and has the tools to work on it. DO NOT put those Bosch Platinum Spark plugs in that Ottozone tries to sell everybody.

May 11, 2010 | 1998 Volkswagen Beetle

2 Answers

1999 Chevrolet Suburban cylinder 3 misfiring?


P0300 is a multiple cylinder misfire and is used by all OBD2 vehicles on the road in the USA that is 1996 and newer, P0301 is cylinder number 1..P0302 is # 2 and so on...that tune up may have been needed and parts and labor are expensive..you have a cylinder that is misfiring and the cause must be located..possible causes are intake manifold air leaks..secondary ignition problems..fuel injectors..plugged EGR system if it has one..failed head gasket..burned or cracked valves..I have seen some crazy stuff..you need a tech on that one not a mechanic.

Sep 06, 2009 | Chevrolet Suburban Cars & Trucks

1 Answer

2000 dakota 4.7 v-8 codes p0300 p0303 p0304 p0307


well the codes
p0300 multiple misfire
p0303 misfire cylinder 3
p0304 misfire cylinder 4
p0307 misfire cylinder 7

can be alot of things check cylinders for compression is what i would do first..

Jan 31, 2009 | 1997 Dodge Dakota

1 Answer

Rav4 99 P0303 ( random misfire) and P0300 and P0302


Had the same problem on my brothers Rav4. We changed the Plug wires and the problem is corrected. He had changed the plugs a couple of months ago. We had the code read at Advance Auto, it came up P0300 Random misfire. His old wires looked fine also.

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