P0303 misfire code... No Misfire mode 6 codes... 2 evap ones... But nothing indicating reason for 1300+ Idle.
Cylinder 3misfire may be caused by vacuum leak. Vacuum leak can raise idle. If vacuum leak is due to a broken EVAP line, you will get all these codes and symptoms.
Posted on Apr 20, 2014
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Posted on Jan 02, 2017
SOURCE: rough idle and intermittant misfire
I have a 2006 with 37800 miles was told today that the fan motor and radiator must be replaced. When the car started to overheat due to the fan motor not running fast enough it blew the freon out too so now a/c wont work either. The bill is close to 1000.00 Dodge offer to pay for labor as GOOD WILL GESTURE 144.00 to be exact. I have taken it in over and over with the same complaint you have described and was told to get a tune up so I did. Warranty espired exactly 3 weeks ago. My sugestiojn would be to sell the damn thing!
Posted on Aug 29, 2008
SOURCE: van is running bad (coil misfire alarm code)
Suggest you check the wiring harness for continuity.
(Unplugged from ECM, of course!)
These wiring harnesses have a bad rep for intermittent breaks, in the wires of the harness. You have to wiggle the harness while running a continuity check, (Multimeter set to OHMS), otherwise the break/s may not show up.
Yes, I know where that harness is located. No, it's not Even going to be fun to remove, and check this harness!
I had to do this with a 1992 Pontiac Bonneville, with a 3.8L engine, not too long ago. Everything had to be removed, on the front of the engine, Including the water pump, in order to extract this harness.
Made me SO happy! (I still get the 'Giggles' when I think about it!!)
Posted on May 19, 2009
SOURCE: have po301 code 1 cylnder misfire whats the
anything from bad wire .plug or fuel delivery problem to cylinder 1pull plug and c if fouled -also test wire for break
Posted on Feb 20, 2010
SOURCE: getting p0303 code. replaced the plugs, problems
Not sure how many miles on your PT,but may be wire bad or not fully seated or bad lug on coil for #3 cylinder.Not sure if crankshaft position sensor would cause only one cylinder to missfire.Just remember that the timming belt needs to be replaced between 75,000 and 100,000 miles.My wife didn't know this.Well hope this helps,and good luck.
Posted on Mar 23, 2010
Testimonial: "suggestions that I had not considered. Thanks for the assistance"
SOURCE: I have trouble code
if it has the 2.5l v6 then your distributor is possibly bad [all 95s came from the factory with defective solder joints in the dist.] or your egr valve is stuck open or leaking. to check for that start engine when cold open hood and locate egr valve rear center of intake it has a round top with a vac hose on it. there is a steel tube that connects to it that goes to the exaust.sprincal a few drops of water on the pipe. if it sizzles then the valve is bad.
Posted on Sep 02, 2010
Feb 27, 2014 | 2008 Cadillac Cts
Mar 30, 2012 | 1997 Honda Accord
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Bad miss at idle?
http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html
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While stop engine idles
like cylinder missing?
http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html
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Engine Misfire codes for
car?
http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?
http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
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Misfire on cylinder 4?
http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html
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Oil on spark plugs and car misfires?
http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html
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This will help.
Thanks.
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