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Hi,im have misfire on a mitsu. GDI INJECTOR &COIL IS GOOD?

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Mechanical electrical or fuel to one (or more 0 cylinders..do leak down test/compression test and advise ..need to know basic mechanical health first

Posted on Dec 21, 2008

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GDI. Why is there misfire and idle fluctuation?


code p 0300 determines misfire causes as the following=== causes --engine mechanical fault ---wiring---ignition/ fuel system---injector ---ECT/MAF sensor--- ECM
You have two areas to check
one is the MAF sensor as it will cause erratic idling and second the injector or HT leads to a plug
If you run the fault codes you will get a p 0301or 2 or3 or 4 code and that is the cylinder number that is misfiring--code p 0300 is random /multiple misfires and the causes are the same including low fuel pressure and low compression

Dec 17, 2015 | 2004 Mitsubishi Lancer

2 Answers

Fixed spark plugs,wires, coil packs, and fuel injectors and still reading a p0300 code random/multiple misfire any suggestions?


Hi William:
Sounds like you've about covered the workers.
How about the boss?
CPS?
Cheers.

Nov 11, 2015 | Cars & Trucks

2 Answers

Mitsubishi galant misfire 303 code all brand new components


You might try looking at all vacuum lines for a leak. This could cause a lean misfire.Look at the plugs,if very white,could indicate lean condition. listen very carefully for a hiss and follow to the leak. The problem you describe could also be a cat converter failure. Typical on mitsu. Good Luck...SMP

May 01, 2014 | Mitsubishi Galant Cars & Trucks

1 Answer

Misfire in number 3 and number 4 cylinders


Misfire is not always from coil. It could be from spark pug wire and injector.
Solution:
-Test the injector at the misfire cylinder. Is it within specification...?
No.>>> The injector is bad. Replace new one.
Yes. the injectors are good and within its specification.
-Check the plug wire. it might be broken and spark to ground or too much resistant. If so replace it.

Mai Lor

Feb 24, 2013 | 2005 Ford Taurus

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Im getting a misfire and the mechanic says its coming from cylinder 2, but says that spark plugs and wires are good, but that it could be coil or injector unless its deep into engine, what should i do?


Replace the coil pack for cylinder to if that doesn't help it could be a crank position sensor since that's the sensor that controls the ignition firing if you want to check the injector pull the plug wire for cylinder 2 then start your vehicle shut it back of and remove the plug for cylinder 2 if the plug is wet and smells like gas your injector is working most likely a bad coil pack

Jan 05, 2012 | 2003 Pontiac Aztek

1 Answer

I have 1996 Dodge Gran Caravan, and it gives me these codes: 27 and 43, what do they mean??


CODE 27 - Injector Control Circuit, output driver does not respond properly to the control signal

Code 27 MIL light options: OBDII
P0201 - Injector #1 Control Circuit
P0202 - Injector #2 Control Circuit
P0203 - Injector #3 Control Circuit
P0204 - Injector #4 Control Circuit
P0205 - Injector #5 Control Circuit
P0206 - Injector #6 Control Circuit

CODE 43 - Cylinder Misfire, or Ignition Primary Circuit

CODE $# MIL options: OBDII
P0300 - Multiple Cylinder Misfire
P0301 - Cylinder #1 Misfire
P0302 - Cylinder #2 Misfire
P0303 - Cylinder #3 Misfire
P0304 - Cylinder #4 Misfire
P0305 - Cylinder #5 Misfire
P0306 - Cylinder #6 Misfire
P0351 - Ignition Coil #1 Primary Circuit
P0352 - Ignition Coil #2 Primary Circuit
P0353 - Ignition Coil #3 Primary Circuit

Feb 03, 2010 | 1996 Dodge Caravan

2 Answers

Volvo s40 1.8 gdi excessive fuel consumption


You're going to have to figure out what's causing the misfire. The car is almost 10 years old, so change the plugs to start with. If you still have a misfire, go to auto zone and have them pull the codes to find out which cylinder is the issue. Then figure out fuel or spark? Coil or injector? Was there a lean code? Check for a vacuum leak. Change the fuel filter and air filter for maintanence. The cruise control may be another issue.

Aug 06, 2009 | 2001 Volvo S40

2 Answers

2001 ford taurus p0301 and p0303


You are mis fireing on cyl 1 and 3 if you replaced plugs and wires and coil this is going to be a fuel injector issue or valve issue. See if you can swap the injectors with known good cyl. and see if it changes. Or have a shop do a fuel injector service on it to see if it helps. It may be to late for the fuel injector service.

Mar 01, 2009 | 2001 Ford Taurus

1 Answer

2000 dodge intrepid engine light on, power loss, rough idle


P0304 Cylinder 4 Misfire Detected P0354 Ignition Coil 4 Control Circuit P0204 Injector 4 Control Circuit You need to check injetror wires an coil wires .If good, The new coil my not be good.The Injector my be bad. If good it the ECM Check all fuses.

Jan 15, 2009 | 2000 Dodge Intrepid

1 Answer

2001 hyundai sonata 2.4 dohc, cylinder 3 misfire code


tried testing the igniter also i would look into the injector, that will cause a single cylinder misfire and probably is your problem?misfires are not noticeable at higher speeds, which im sure you know but i would go that route, could have a pinched injector or a stuck one. one easy way to test is swap 3rd injector with another and see if that one starts misfiring instead, another rought is to get a cheap auto stethoscope and put it to each injector to hear if its opening and closing, compare with others. good luck.

Dec 11, 2008 | 2001 Hyundai Sonata

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