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2 Answers

Wht does it men when my 20001 hondcivic wont start and po 304


The code is for a cylinder misfire

Why it won't start is another issue

Aug 05, 2014 | Honda Civic Cars & Trucks

1 Answer

Sputter anylizer po304


Code 304 is for a miss on cylinder 4 if that is your question.
It could be spark, fuel, or something mechanical.

Aug 09, 2013 | 1997 Chevrolet S-10 Pickup

1 Answer

2006 ford freestar po304


Code 300 is a random miss not serious enough to peg a cylinder, code 302 is for cylinder 2 and code 304 is cylinder 4. Code 402 is for an EGR flow problem.
Its possible the EGR problem is causing the missfires. The computer sets the 300 codes when RPM drops on a cylinder. The computer does not know why. So it could be spark, fuel, compression, or a vac leak.

Jun 28, 2013 | Cars & Trucks

1 Answer

Po302 po304 po307 po171 codes are showing up, any ideas?


PO 301 thru PO 308 are engine cylinders with possible
misfires & bad coils

PO 171 is a lean condition on Bank# 1 oxygen sensor

If the front or upstream sensor are over 100,000 miles, change
them as preventative maintenance

The cylinder misfires have to be diagnosed & tested any of
several ways,professionally for the most part

Jan 15, 2013 | 1999 Lincoln Town Car

1 Answer

What's your problem? my 2004 mercury monterey has eight codes ,po301,poo53,po106,po316,po300,po304,po305,and po306


PO 300 is multiple misfires detected
PO 301, 304, 305, 306 are misfires in cylinders 1,4,5,&6
PO 053 is HO2S Bank 1 Sensor 1 Heater Resistance
PO 106 is MAP/BARO CKT Range / Perf
PO 316 is Misfire detected 1st 1000 Revs.

On a misfire, I usually push towards the spark plugs, plug wires, and coil packs / distributor coil.
You have PO 106 and PO 053 that need to be inquired about at nearest AutoZone.
They can give you an idea as to what is the problem on these.

Did a MAP sensor **** out and cause all the misfires ?
Did a misfire cause the MAP sensor error?
You see what I'm saying ?...Something caused all the misfires...thinking MAP...but not that familiar with the function of the MAP.

Hope this helps...

Aug 13, 2011 | 2004 Mercury Montery

1 Answer

MY CAR WAS PUT ON A MACHINE AND IT CAME BAC THE FOLLOWING CODES: PO 301, PO304, PO335, AND PO 750. I DONT KNOW WHAT TO DO MY MECHANIC SAYS THAT THE SHIFT SOLENOID IS LOCATED IN MY TRANSMISSION AND HE...


hi p -codes are as follows po 301 cylinder 1 missfire detected
po 304 cylinder 4 missfire detected
po 335 crankshaft position sensor A circuit malfunctio
po 750 shift solenoid A malfunction

Feb 23, 2011 | Hyundai Sonata Cars & Trucks

3 Answers

Codes read PO335, PO304, PO336 i need to know what they are for, Please !!


304 is misfire on cylinder #4. #4 is the middle cylinder on the driver's side.
The other 2 relate to the crankshaft sensor:

P0335 Crankshaft position (CKP) sensor -

possible causes: circuit malfunction Wiring, CKP sensor, ECM

P0336 Crankshaft position (CKP) sensor - range/performance problem
possible causes: insecure sensor/rotor, air gap, wiring, CKP sensor

Is the car running? If yes, check for a loose connector on the crank sensor. You may need to take the connector off and see if there is any corrosion on the terminals. If yes, do your best to clean with a small screwdriver and/or electrical parts cleaner.

From what I can tell, the sensor is on the bottom of the engine near the idler arm, but it has a long pigtail such that the connector is on top of the engine by the fuel rail. See pictures below.

for the misfire,

Please see my tip at http://www.fixya.com/cars/r6715318-causes_gasoline_engine_misfires . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.


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Dec 18, 2010 | 1998 Cadillac Catera

1 Answer

02 pt cruiser check engine light on rattle when accelerating code 304


CODE PO304 - CYLINDER 4 MISFIRE DETECTED. POSSIBLE CAUSE BAD SPARK PLUG .FAULTY OR STOPPED UP FUEL INJECTOR.BAD IGNITION COIL.

Nov 21, 2010 | 2002 Chrysler PT Cruiser

2 Answers

Code po304 #4 cylinder mis fire


ck if you have spark at the coil for that cylinder. check the plug wire closely. if it has spark at the coil, then replace all the spark plug wires.

Oct 12, 2009 | 2000 Cadillac DeVille

1 Answer

What is error code po 304 and po316


P0304 is Cylinder 4-misfire detected-probable cause is as follows. Engine mechanical fault, wiring, ignition/fuel system, injector, ECT/MAF sensor, ECM

P0316 Misfire detected during startup-first 1000 revolutions- probable cause is as follows-Engine mechanical fault, wiring, ignition/fuel system, injector

Aug 18, 2009 | 2003 Mercury Sable

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