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2001 Dodge Stratus R/T code po300
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cgkdds
Novice
Sep 17, 2013, 10:07 AM
Post #1 of 15
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2001 Dodge Stratus R/T code po300
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engine misfires up to 2000 rpm and then runs good. I've replaced plugs,cap and roter.fuel pressure is good and replaced fuel with high test pump fuel 93 octane.
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 17, 2013, 12:48 PM
Post #2 of 15
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Re: 2001 Dodge Stratus R/T code po300
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Check engine light?
What are the code numbers?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cgkdds
Novice
Sep 17, 2013, 1:42 PM
Post #3 of 15
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Re: 2001 Dodge Stratus R/T code po300
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the only code coming up on my scanner is PO300
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Hammer Time
Ultimate Carjunky
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Sep 17, 2013, 2:33 PM
Post #4 of 15
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Re: 2001 Dodge Stratus R/T code po300
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What was the fuel pressure reading and was this taken during the failure?
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cgkdds
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Sep 17, 2013, 3:17 PM
Post #5 of 15
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Re: 2001 Dodge Stratus R/T code po300
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50 PSI and yes
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Hammer Time
Ultimate Carjunky
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Sep 17, 2013, 3:26 PM
Post #6 of 15
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Re: 2001 Dodge Stratus R/T code po300
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Are you telling me that you had 50PSI while the car was running and misfiring?
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cgkdds
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Sep 17, 2013, 3:39 PM
Post #7 of 15
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Re: 2001 Dodge Stratus R/T code po300
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yes
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Hammer Time
Ultimate Carjunky
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Sep 17, 2013, 3:43 PM
Post #8 of 15
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Re: 2001 Dodge Stratus R/T code po300
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There is a problem with that statement.
The spec with the engine running is only 38PSI at idle.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cgkdds
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Sep 17, 2013, 3:53 PM
Post #9 of 15
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Re: 2001 Dodge Stratus R/T code po300
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I'll recheck it again tomorrow and get back to you. my pressure set is at the shop and I'm already home for the evening.
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cgkdds
Novice
Sep 18, 2013, 4:35 PM
Post #10 of 15
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Re: 2001 Dodge Stratus R/T code po300
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49 PSI running. I checked the specs in Haynes manual and it seems to fall in specs for the engine. It has the 3 liter 24 valve engine. Coupe body.
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Hammer Time
Ultimate Carjunky
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Sep 18, 2013, 4:47 PM
Post #11 of 15
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Re: 2001 Dodge Stratus R/T code po300
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Not with the engine running and vacuum connected to the regulator.
This is from Alldata which is far more trustworthy than Haynes.
Regulated Pressure w/Vacuum Connected 270 kpa (38 psi)
Note: At curb idle Regulated Pressure w/Vacuum Disconnected 330 - 350 kpa (47 - 50 psi)
Note: At curb idle
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cgkdds
Novice
Sep 19, 2013, 6:56 AM
Post #12 of 15
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Re: 2001 Dodge Stratus R/T code po300
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ok so I found a vacuum hose cracked going to the fuel pressure regulator and replaced it. still running a bit over your spec though. it's at 41.5 psi warmed up at idle. I'm not sure 3.5 psi would cause my problems but I am up to any suggestion at this point. I wish now that I would have gone into the mechanical side of car's instead of the body side!
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Hammer Time
Ultimate Carjunky
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Sep 19, 2013, 9:18 AM
Post #13 of 15
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Re: 2001 Dodge Stratus R/T code po300
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Somebody is just going to have to analyze all the data using a scan tool and look for something out of place.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cgkdds
Novice
Sep 19, 2013, 12:59 PM
Post #14 of 15
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Re: 2001 Dodge Stratus R/T code po300
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Yeah I was kinda leaning that way. My simple little code yanker just isnt gonna cut it for driveability issues. I know some folks at a go fast Z shop but dont know if they can help me with a Mitsubishi engine. Ill give them a shot. Thank you for taking the time to help. not just me but all the countless others as well. I'll post on whatever fix I find. The more I lok online the more I see folks having a problem with this po300 code. how I long for the good old days of tuning a carb.
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Hammer Time
Ultimate Carjunky
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Sep 19, 2013, 2:33 PM
Post #15 of 15
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Re: 2001 Dodge Stratus R/T code po300
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A P0300 just means random misfire. The possible reasons or causes are infinite.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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