Question about 1997 Chrysler Sebring

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Car shimmied when ignition turned on and now shows p0303 diagnotsic code

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Code p0303 refers to cylinder 3-- misfire detected==causes ---engine mechanical fault---wiring---ignition/ fuel system--injector--ECT/MAF sensor --ECM

Posted on Dec 31, 2013

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1 Answer

Misfiring


code p0303 refers to cyl 3 misfire detected ===causes engine mechanical fault--wiring--ignition/fuel system--injector--ECT/MAF sensor--ECM
code p0316 refers to misfire detected during start up --first 1000 revs===causes --engine mechanical fault--wiring--ignition/furl system--injector
the common fault cause is ignition/ fuel system and injectors so I would be checking fuel pressure and injector systems for clean and wiring connections are good especially on no 3 injector.

Apr 19, 2014 | Mazda 626 Cars & Trucks

1 Answer

Code p0303


P0303 is a misfire in cylider 3. This is almost always an ignition coil in this car. I would swap out all 8 with Motorcraft coils as well as spark plugs. If one is going, the others arent far behind and one bad one makes the others work harder.

Mar 11, 2014 | 2003 Lincoln LS

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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

Codes p0171 p0303 p0325 car missing


p0171 = fuel system too lean, this means vacuum leak or faulty oxygen sensor

p0303 = cylinder 3 misfire

p0325 = knock sensor malfunction.

p0303 and p0325 - i can see these working together, if a cylinder misfires, it will cause the knock sensor to trip. I would lean towards the coil and or ignition module, along with a faulty oxygen sensor.

Dec 08, 2013 | 2000 Nissan Altima

1 Answer

P0300 code misfire p0303


# 3 cylinder misfire (PO303) if code is
actually correct for your problem,nothing
to do with spark plugs,ignition problem

Jul 10, 2013 | 1999 Buick Regal

1 Answer

What does p0303 code mean?


Cylinder misfire on #3
Google PO300 codes & study
Bad COP Ignition Coils or Ignition Wires,
Ignition Module--- depending on motor & ignition system
type

Jun 08, 2013 | 1997 Ford Taurus

1 Answer

I have a 1998 toyota sienna with 132,000 miles on it. Recently I noticed a "shuddering" or hesitation while driving that was intermittent at idle and driving. The check engine light came on...


my name is Jerry Tiet. Base on my experience on 1998 Toyota Sienna with the DTC P0303 show there is a misfire in cylinder #3. a possible cause is the ignition coil of the #3 cylinder. Compare the resistance value of the ignition coil of cylinder #3 with the other coil or simply switch ignition coil #3 with one of the other ignition coil and clear the DTC with the scan tool. Then run engine for couple days. If the check engine light on again. Let me know what is the DTC code.

Nov 11, 2010 | 1998 Toyota Sienna

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