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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...   2020 suburban new transmission and issues after install recently had the transmission fail at 11...   Caliper piston post cleaning won't screw in Hello, 2013 Hyundai Elantra limited (ma...

Search Auto Parts Search p0301 keeps coming up Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Engine ODB2 Fault Codes woodbrew09 New User Nov 14, 2009, 9:51 AM Post #1 of 5 (3513 views) p0301 keeps coming up Sign In I have a 2001 mercury sable with a 3.0 24 valve engine with 110000 miles on it. I keep getting the code p0301 which is a miss fire on cylinder #1. I have had a compression test ran on cylinder #1 and its reading in the 120s, I had the coil pack check and its firing on all 6, and I had spark plugs and spark plug wires changed on it. Can you please tell me if there is any other easy repair that it could possibly be? I have heard that it could be with the air flow through the air filter. Does this seem plausable? Hammer Time Ultimate Carjunky / Moderator Nov 14, 2009, 11:34 AM Post #2 of 5 (3507 views) Re: p0301 keeps coming up Sign In Exactly how did you have the coil pack checked? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. Loren Champlain Sr Veteran / Moderator Nov 14, 2009, 11:42 AM Post #3 of 5 (3503 views) Re: p0301 keeps coming up Sign In woodbrew; You can have it tested with an exhaust analyzer to see if that cylinder is getting fuel. You can also ohm check the injector, listen with a stethescope to hear if it is clicking with the engine running. (if it is clicking, that doesn't mean it's not plugged). (If it isn't clicking, check the circuit with a noid light to be sure you are getting voltage and ground). Loren SW Washington woodbrew09 New User Nov 14, 2009, 12:16 PM Post #4 of 5 (3499 views) Re: p0301 keeps coming up Sign In the nmechanic did this thing with it to make sure all ports were sparking through and they were Hammer Time Ultimate Carjunky / Moderator Nov 14, 2009, 12:25 PM Post #5 of 5 (3495 views) Re: p0301 keeps coming up Sign In That type of test really does not clear the coil. Your miss is likely very intermittent and only occurring under load so that test won't show anything. I would compare the color of the spark plug in that cylinder to the other cylinders and see if it is any darker or lighter. Darker would mean ignition miss, lighter would indicate lack of fuel. I'm not saying it's the coil but you haven't ruled it out yet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. (This post was edited by Hammer Time on Nov 14, 2009, 12:25 PM)   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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