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Audi 2000,1.8 turbo,code po300,po301,po302 - 2001 Audi A4

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  • 353 Answers

P0300 - Combination misfire detected
P0301 - Cyl 1 misfire
P0302 - Cyl 2 misfire

If it has a lot of miles it needs a tune up.
Fill tank with high quality premium fuel
Check fuel pressure

Posted on Sep 30, 2009

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6ya6ya
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Posted on Jan 02, 2017

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saa_aa
  • 241 Answers

SOURCE: have codes po300 po301 po302 po316

its like you have cylnder misfire or more , did you check all the wire .plug if any one bad or the wire have fire , and you check if the fuel pump good . i would like to ask you that , Did the problem come on suddenly or was some previous action or work done......

Posted on Nov 12, 2011

  • 14 Answers

SOURCE: 2000 sonata v6 117000 miles

Try some scrapdealers. They keep bits they think they can sell from crashed/scrapped cars etc.

Posted on Aug 03, 2008

  • 15 Answers

SOURCE: po302 code,po301,po300

usually a p0300 is a random missfire code due to a fuel problem probaly bad gas , use some in tank fuel treatment such as techron or lucas injector cleaner, after adding fuel disconnect negative terminal to batt, to clear codes and see what happens

Posted on Dec 27, 2008

mrgreenz
  • 962 Answers

SOURCE: Ok I?m getting a p1297 code and then I?ll start

Clean the EGR valve seat. The EGR may have become stuck. A good way to check for vacuum leaks is to use smoke near every intake vacuun hose . And near the intake manifold. The valve will **** in the smoke. If you clean the EGR valve and it still misses. Replace it. The EGR can cause random misfire.

Posted on Jan 06, 2010

Testimonial: "ok ill give that a try i never herd the smoke test before but i like it sounds like it will work"

  • 5370 Answers

SOURCE: 2001 sportage, check eng lite,po300,po301,po302.

No its not a very common problem in kia,but this problem is seen in all brand/models of car.The error codes are indicating.Coil pack and spark plug fault.------ There are a lot of causes of engine misfiring, but the most common cause is bad spark plugs or spark plug wires and a worn coil pack. When one of these causes occurs it will affect air/fuel mixture firing inside the engines cylinder.The first thing to do to fix a car with engine misfiring is to replace the spark plug and the spark plug wires, replacing this parts usually fix the problem. However, if engine misfiring remains then the next part to be replace is the coil pack.-------.Also try cleaning the fuel injectors,and spark plug wires.IF the spark plug wires seems wet or moisture got collected on them,Clean then and dry them then recheck.But most probably,the coil pack and spark plug wires needs to be replaced.There are two things one there is misfire and other the codes that are also indicating.So this parts are to be replaced to solve the problem.-----------This should help.Thanks.Helpmech.

Posted on Jan 29, 2011

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2003 acura tl error codes po301 po302 po304 po306 p1399 po300


PO300 and P1399 are random cylinder misfire detected.
PO301 cylinder 1 misfire
PO302 cylinder 2 misfire
PO304 cylinder 4 misfire
PO306 cylinder 6 misfire
I would say that you have damage to the ignition wiring harness or you ECM is failing.

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Get your ECM replaced. Usually it's next to battery or inside front fenders. The rain must have shorted out connections and fried ECM. Engine will sputter until it is done. Usually autozone, advance auto, or dealer has ECM.

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Po300 po301 po302


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Which code you have po300 or po301.po302 .PO301,PO302 will be coil or module.PO300 could be bad spark plugs,vac. leak,clog fuel filter,bad fuel pump,bad battery.

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1 Answer

Have codes po300 po301 po302 po316


its like you have cylnder misfire or more , did you check all the wire .plug if any one bad or the wire have fire , and you check if the fuel pump good . i would like to ask you that , Did the problem come on suddenly or was some previous action or work done......

Nov 12, 2011 | 2004 Ford Focus

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Hello i have a GTI its a 2.0L manual transmission, i have been having problem after problem thus far. Current engine codes PO422, PO300,PO304,PO303,PO302. I do not have a code list to see what these are...


I think that PO422 is the Cat Converter, it may be bad or may be just the O2 sensor.
The PO300, 302, 303, 304 code have to do with the ignition coils or wires. (302, 303, 304 means there are ignition /firing problems in cylinders 2, 3and 4). If your lucky just the wire and new spark plugs.
Google "engine codes Jetta" for more on web. Good luck.

Feb 06, 2011 | Volkswagen GTI Cars & Trucks

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Ok I?m getting a p1297 code and then I?ll start getting po301 If I erase the codes then start the car and let it idle ill get the po300 po301 po302 po303 Then drive the car ill get the p1297 If I erase...


Clean the EGR valve seat. The EGR may have become stuck. A good way to check for vacuum leaks is to use smoke near every intake vacuun hose . And near the intake manifold. The valve will **** in the smoke. If you clean the EGR valve and it still misses. Replace it. The EGR can cause random misfire.

Jan 06, 2010 | 2001 Volkswagen Beetle

1 Answer

Po302 code,po301,po300


usually a p0300 is a random missfire code due to a fuel problem probaly bad gas , use some in tank fuel treatment such as techron or lucas injector cleaner, after adding fuel disconnect negative terminal to batt, to clear codes and see what happens

Dec 27, 2008 | 1999 Toyota 4Runner

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