Question about 2005 Audi A4

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

I was driving down the highway when I noticed my car was misfiring and my car started to smoke. The CEL started flashing then stopped after awhile. I checked the codes and this is what I got:
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
P0441 - EVAP Emission Control System Purge Flow Fault
P1136 - Manufacturer Control Fuel Air Flow Metering
P0411 - Secondary Air Injection System Incorrect Flow
P0118 - Engine Coolant Metering Temp Circuit High Imput
P1128 - Manufacturer Control Fuel Air

I replaced all 4 coil packs and I am still having trouble with it. It is idling really weird and also the brake is having troubles too. I am not sure if this has to do with the problems but the remote unlock is working erratically as well. Please help I am going to take it to a shop tomorrow if I cannot fix it myself.

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Replace the speed idle sensor

Posted on Feb 28, 2009

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: mil is on the codes

Multiple Misfires on 4 cylinders

Need a repair shop

That is only a code report,doubt you
have more than one, unless you have
a bad intake manifold vacuum leak

Stop using it before you damage
something

Posted on Jun 10, 2011

dttech
  • 4803 Answers

SOURCE: p0136 p0156 p0401 p0402 p1131 p1151 p0171 p0174

All of that going on all at the same time is not likely at all. Are you sure the engine is actually overheating or is that just what your instrument panel is telling you?
With all of those things going on at the same time, here is what I would do. First I would take a REAL HARD look at the charging system. Goofy stuff like this is often caused by a battery with a shorted cell or an alternator with bad diodes that is feeding AC current into the computer network. The computers tend to do really goofy things when they are suffering from malnutrition.

Once I am satisfied that the charging system is in good condition, then I would clear the codes and go on a road test. If the check engine light comes back on, I would immediately scan the engine controller to find out which of the codes came back and fix it FIRST. Many times, fixing one code can fix ALL the codes. By doing it this way, you are more likely to find which one is your MAIN problem.

If your engine is actually overheating, all I can say is you need to diagnose your engine cooling system to find out why...all of the misfire codes could very likely be a result of the engine overheating and fixing the engine cooling system will most likely fix these codes.

Posted on Sep 28, 2011

  • 116 Answers

SOURCE: 98 E-250 Rough Idle; codes p0156,p1131,p1151,p0301,p0171,p0174+

po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes

Posted on Dec 15, 2008

  • 51 Answers

SOURCE: 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..

Posted on Apr 27, 2009

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2 Answers

Ihave a misfire problem but no check engine light or scanner codes. Any suggestions?


Your year--make--model didn't post for some reason? That info would be helpful.
Is the problem more noticeable at idle or going down the highway? How long since a tune-up?
The basics for a rough idle, check for a leak of some kind, fuel--egr--vacuum, something of that nature.
You might be able to do a cylinder balance test, see if you have a weak or dead cylinder, then on that cylinder, check fuel--spark--compression.

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Misfiring on bank 1 3 and 5


misfiring is also from injectors and low fuel pressure. To be all on the same side I suspect injector wiring ( possible loose connection on the ECM). Have a compression test done to delete mechanical problems (valves)

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I have a 2003 audi a4 cabriolet 2.4 petrol, mileage is over 100,000 and it is misfiring, coil pack has been changed twice now, spark plugs have also been changed, oil has been changed and it is still...


hi there is valve fixed on intake manifold with the hose & plug containing three wires that balancing & tuning the engine change it so the car will be ok that costing around 45$ only

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I have a 2003 audi a4 cabriolet 2.4 petrol and it is misfiring, coil pack has been changed twice now, spark plugs have also been changed, oil has been changed and it is still misfiring? It is on and off,...


when its mis-firing it is surley putting engine management light on so get codes read.
also when mis-firing need to check to make sure injectors pulsing usually done with magnistick light. if one not working could be injector or feed/earth from engine ecm. also remove and check continuity of coil packs incase another gone faulty.

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1 Answer

1997 Mercury mountaineer. 143,000 miles. Running rough with the service engine light on and when driving down the highway it cuts out and the engine light flashes.


Hello Sdhesseltine.

The flashing check engine light is telling you the engine is misfiring and your description of the problem confirms that.
There will be a code stored in the vehicles engine computer that will tell you which cylinder(s) is/are misfiring.
Spark plugs, ignition coil, fuel injectors or internal engine problems will cause this.
If it has been a while since your last tune up it would certainly be a very good place to begin.
The usual tune up stuff, spark plugs, air and fuel filters for the basics.
A fuel filter will not be at fault in this case but is part of a tune up on this model.

If you require further advise, please ask me here in comments, be glad to help.
Thank you for using FixYa.

KL

Feb 01, 2011 | 1997 Mercury Mountaineer

1 Answer

Yesterday on highway 100kn an hour ran good when slowing down begain to sputter. Today supttering speratic check engine light came on blinking speed up it stoped blinking but remained on. slow speed light...


It sounds like the engine is misfiring. Get the code read at local shop or auto store. It should tell you which cylinder is misfiring then you can begin diagnosing the problem on that cylinder, whether it be a spark plug, coil, fuel injector, or you could have lean codes in which case you will have either a vacuum leak or low fuel pressure. Without the diagnostic trouble code it is hard to tell what is going on.

Jan 07, 2011 | 2000 Audi A4

2 Answers

Blinking check engine light: Misfiring on


My car was misfiring also. My mechanic reccomended using a few bottles of techron fuel injector cleaner, as my car was used alot previously for city driving. Over time, if it is not opened up and run good and hard at speed on the highway, they become clogged and it will misfire. I spent 30 bucks on two bottles, used it on two tanks, and all the hesitation and lights have gone away! It was awesome, hard tyo fiund a good honest mecghanic who will reccomend a 30 dollar fix that isnt even done by them, rather than a few hundred dollars worth of repairs that wont solve your problem.

Aug 01, 2009 | 2000 Audi A4

2 Answers

HELP, MISFIRING: 1999 Audi A6 Quattro Avant Wagon


P1127 Long Term Fuel Trim mult.,Bank1 System too Rich

P1129 Long Term Fuel Trim mult.,Bank2 System too Rich

P1250 Fuel Level Too Low

P1300 Misfire detected Reason: Fuel level too low

P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)

P0300 Random/Multiple Cylinder Misfire Detected

P0303 Cylinder 3 Misfire Detected

P0304 Cylinder 4 Misfire Detected

It sounds like there is a lot going on.

Good Luck

Brian

Sep 14, 2008 | 1999 Audi A6

2 Answers

2001 Audi A4 Avant 1.9 TDI


hey
well Fuel pressure will cause this concern as with a failing fuel pump, also a misfiring engine from worn plugs or defective coils will cause any bucking/jerking if u have as you try to accelerate, but this would cause a check engine lamp. A bad Mass Air Flow sensor can also cause a poor acceleration and usually does not turn on the check engine lamp.

Jun 30, 2008 | 2001 Audi A4

3 Answers

Misfiring cylinders 2 and 5


fuel injectors?, fuel pressure? low compression? even vacum leaks can cause misfires,

Jun 22, 2008 | 1998 Audi A4

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