Sonata NF (2006-10) :: 2007 - Misses Only When Warmed Up / Code Code P0301
I have a 07 Sonata V6 that misses only when warmed up, runs fine when cold. code p0301 for cylinder one misfire, I have replaced the plug, coil and injector for cylinder one and still the same. idles and runs perfect when cold, dead miss on number one cylinder when warmed up.
View 1 RepliesFord F-150 - 1997-2003 :: CEL Code P0301 / Misfire With Cylinder 1
My 97 F150 through a CEL Tuesday night P0301 so I picked up a new plug because it's cheap and simple, but that didn't do anything. Spark plug wires are about 3 months old, I also swapped injectors between 1 and 2, and misfire stayed with cylinder 1. It also gained a tap when the misfire started but only above idle, but it doesn't sound like a rod knock.
I also noticed if you unplug injector 1at idle it taps/knocks 3 or 4 times, however if you unplug any of the others it doesn't do that. I checked and I definitely have good spark from the plug. I plan on picking up a new compression tester tomorrow since mine never was returned. If you take the oil fill cap off it doesn't have any blow by at idle, however if you rev it you get a quick cloud out of it.
I thought about picking up a kit to check the injector pulse.
Ford F-150 (2004-2008) :: Code P0301 - Misfire Cylinder 1
This happened xmas shopping with the wife. Started misfiring on the highway,took the 1st exit to find a garage as I am 20kms from home. The vibrations were worse at stop, but made it to a garage. They gave me the p0301 misfire cylinder 1, said they don't touch 5.4 plugs, told me to go to ford 2kms down the road. NICE. 4 in the pm, FORD dealer worse case scenario. Nope gave me a loaner told me come back at 930am. Truck was just waiting for an injector when I arrived. Plug & coil were good injector was shot,changed the fuel filter & oil change.
View 6 RepliesFord - Taurus :: 2001 - 3.0 Engine Misfire Consistently / Code P0301
I had a consistent misfire on this car and finally got a P0301 trouble code. I installed new Autolite AP 104 plugs and wires. Now, when I start the engine. it runs perfectly. But when I put it in gear, it misfires. After a minute or so, the misfire clears and the engine runs perfectly. I have not received another trouble code. One thing I did notice is that the plugs I took out (Motorcraft AWSF 32P) had a much larger gap than the .044 the associate at AutoZone set the new plugs to.
View 7 RepliesFord - F150 :: 2003 - Code P0301 / Misfire On Cylinder 1 Keeps On Coming
I am at about my wits end with this P0301 (Misfire On Cylinder #1) code on my 2003 Ford F150 4.6L. I've replaced the coil pack on that cylinder, all the spark plugs, and replaced the fuel injector on that cylinder. We keep clearing the code and it keeps on coming back.
The weird thing is that it only misfires after the truck has set for a few hours and then it only misfires when I first put it in gear. Once I am out of the driveway and on the road it's fine for most of the day unless I let it sit for several hours and then it might misfire again.
We noticed that the connector to the fuel injector is wobbly and doesn't snap tight to the fuel injector (before and after it was replaced) due to the clips on the side not working well. We zip tied it together this afternoon to make it fit tightly to the fuel injector to see if that works.
What could be causing this? Other than that misfire the engine sounds great and the trucks runs very well.
Ford F-150 - 1997-2003 :: 1998 - Cylinder 1 Misfire / Code P0301
I have a 98 F150 4.2L with code P0301 Cylinder 1 Misfire.
This is what I have done so far. New plugs, coil pack, plug wires, TPS, EGR, EGR Vacuum control regualier, DMCP, canister, all of these parts are new and was bought from the ford place. Have taken the egr value, and egr value bracket off to see if carbon blockage was present, but it was clean. It was clean in the motor also. Have blown air through the metal tube that connects to the egr value and it come out the tail pipe very good, so no blockage their. Have cleaned throtle body and injectors. Have tested fuel injector with tester and it works correctly. Motor holder pressure. Have correct fuel pressure.
Do not have any vacuum leaks, it holds vacuum correctly. Crankshaft sensor is fine. Went throw 4 cans of break parts cleaner, spraying on intake while motor was running, motor did not idle up or change. I have done all this and it still shows code P0301, and it still skips. Here's the catch, if you unplug the vaccum off the egr the misfire goes away, or unplug the EGR vacuum control regulator it goes away, or if you unplug the DMCP sensor it goes away, it does not matter witch one you unplug, the misfire goes away.
I have had several different test done the the truck, but all the test only show that one code P0301, they do not show any other codes, or problem's with my truck.
Ford F-150 (2004-2008) :: 2006 - Misfire On Cylinder 1 / Code P0301
I have a 2006 F150 with a cylinder #1 misfire only code p0301. I have done new spark plugs, new coil packs, and new fuel injector on cylinder #1 with no luck. What to do next?
View 5 RepliesPassat (B5) :: 2001 - Getting Error Code P0343 While Using Scan Tool?
2001.5 1.8t, I have this p0343 code when I used the scan tool at murrays or oreileys whatever the h they are now (it means something like cam angle sensor high input). The t-belt was due for service a while ago , am I looking at a sensor problem or a wiring problem or a timing/engine problem? How should I check and where? I hear the timing belt can be a pain on the 1.8s, I have done a mk4 trans and a bit of other stuff but I do have a lot going on right at the moment and I'm not sure if I have time. I have a feeling if I take it in for service they will probably find blow through from the turbo and pull the engine because of "sludge".
View 2 RepliesPrius (Gen 2) :: All Dash Lights Lit Up And Scan Gauge Showing Code P0A93
I am about 50 miles from El Paso and 350-400 from home, broken down on hwy right now, all the dash lights lit up and my scan gauge says p0a93 the inverter pump thing. Nothing has been worked on or messed with so i should have no air in the lines etc
Can I drive it like this to El Paso or home? Car seems to be running fine. Car is under toyota warranty so i don't want to screw anything else up.
Corolla / Matrix 2009-13 :: Scan Showing 10 Faults But Only 3 Code Numbers Were Given
The check engine light on my 09 Corolla came on so, after it continuing to stay on, I bought a OBD ll Code Reader. The scan showed 10 faults but, only 3 code numbers were given for the 10 faults. Each of the 3 code numbers appeared twice for a total of 6 out of the 10 faults indicated. The remaining 4 faults had no corresponding code numbers. Don't know why but, they just didn't. Even after multiple scans.
Here are the code numbers that did show.
P2401(twice)
P2402(twice)
P2419(twice)
According to the CD that came with the reader, this is what the codes mean.
P2401.. evap emission system leak detection pump control circuit low.
P2402.. same thing as above except control circuit high.
P2419.. evap emission system switching valve control circuit low.
Looking for more specific explanation to me what this all means then it has something to do with emissions. Is it something that should be of concerned? I have erased the codes a couple of times but after a day or two, the engine light comes on again. This has been going on for over a month now but, the car is working great. Last road trip, I got approx 52 mpg.
Ford - Explorer :: 1999 - Engine Rattling - Code P0301 / P0302 / P0303 / P0173 - Motor Shot?
My wife started our '99 Explorer last week and she said that the engine was rattling. I started it up when I got home and it sounded like something had let loose in the engine. We took it a local mechanic and he basically said that the motor was shot. I pulled the codes and it doesn't look good to me but I'm not a mechanic. Codes are:
P0301
P0302
P0303
P0173
Prius (2004-09) :: Check Engine Light On And Scan Gauge Indicated Code P0000
Purchased a used 2005 Prius with 30,000 on the clock. Have put 5,000 miles on the car with no problems. Recently the check engine light came on and my Scan Gauge indicated a trouble code of "P0000". Cleared the code and four days and 500 miles later the check engine light returned with the same code. Car runs great even with the light on. Have check the fuel cap which was and is tight.
View 2 RepliesGolf/GTI VI :: Hesitation And Code P0301 On 2010 VW
I have a 2010 VW GTI, approx 48,XXX miles and need a hesitation diagnosis. The car is throwing a P0301 code, I have replaced the plug, coil, and check the coil harness. I think it may be the injector, so I replaced the fuel filter but don't want to do the injector on a whim. I don't want to take it to the dealer if I don't have too!! I live in Silver Spring MD.
View 1 RepliesCorolla / Matrix 2009-13 :: 1.8 L - Misfire Code P0301
I have a 2009 Corolla with a 1.8 L. I have the misfire code P0301. I have changed the plugs, ignition coil, and fuel injector on cylinder one. It still has the misfire.
View 5 RepliesPontiac - Grandam :: 2001 Getting OBD Code P0301 / P0420?
We bought a used 2001 Grand Am (V6 automatic) a few months ago. Mileage was just under 100,000. It was running decently at first, but that improved once we did more maintenance. It's gone from about 150 miles on the highway on a full tank to about 250. A lot of the problems didn't reveal themselves until we took it onto the highways. These are the parts we changed in the last 2 months:
-new battery (old one was 0.1 above fail)-all 6 spark plugs-catalytic converter-front oxygen sensor-oil filter-timing belt-pcv valve and breather hose (old one melted)-all 4 shocks/struts
Latest problem is OBD code P0301 cylinder #1 misfire. The entire car started to shake when we were in low speed in a drive thru. It only seems to shake in drive gear and it does it the whole time. It doesn't shake in reverse or any other gear. Found out #1 spark plug was cracked and a chunk of the ceramic portion was missing. It got replaced but that didn't fix the problem. Haven't noticed any white exhaust yet. The ignition fails 1/7 of the time since P0301surfaced.
The last problem we had was P0420. We went to 3 different shops and nobody was able to fix the problem properly. It wasn't until the pcv valve and breather hose were replaced that the code disappeared. The valve was actually cracked and parts of the breather hose were melted. I can't understand why nobody noticed that.
I know there could be a lot going on, but I was hoping the possible problem could be narrowed down.
Ford Ranger / B-Series :: MIL P1444 Code - Faulty Purge Flow Sensor
So I had a post up saying "is MIL P1444 a urgent fix" and I got "no". On an other website though it said that it was an urgent fix. They said it was "similar to running a bad catalytic converter. You don't want to do it."
P1444:
Possible causes
- Faulty Purge Flow Sensor
- Purge Flow Sensor harness is open or shorted
- Purge Flow Sensor circuit poor electrical connection
So I located the purge flow sensor and look at the tube that connects to that,the canp solenoid, and the carbon canister. Nothing looks bad, but I did notice that the tube that connects to the carbon canister to the solenoid is not connected. The part that connects to the carbon canister dry rotted off. So I turned on my car to see if anything was coming out of that tube or air and there was nothing (not sure if that's good or bad). Also a week ago when I filled up my gas tank (before the check engine light was on) a lot of fumes were coming out of the tank while pumping.
The scanner i use also lists the secondary air system, the EVAP system, Heated catalyst, and the AC refrigenant has red X's, but they weren't continuous.
Prius (2004-09) :: Engine Light, Error Code P0301 Came On
So I changed my spark plugs, due to an error code saying p0301 which means cylinder one misfiring. I reset the engine light disconnecting the negative battery terminal. Once it reset it ran rough for a few miles. I put about 50 miles on it and it seems better.
View 2 RepliesPrius (2004-09) :: Code P0301 - Cylinder 1 Misfiring During Warm-up
I have a 2009 Prius that I purchased 6 months ago and have been really happy with it until the last couple of months. As the weather is getting colder appears I have a misfiring problem on start-up
I have had this problem now for a little while and have been trying to get it understood before paying $$ at the dealer for "maybe" solutions.
It started as the weather got colder. Intermittently the check engine light would come on. Then after a few days would go off.
I have considered water in the line: fuel injection cleaner/antifreeze
I have considered bad gas in the tank: problem persists several fuel tanks later
I have recently purchased a trouble code reader/diagnostic that plugs into my laptop. Trouble code is p0301. Cylinder 1 misfire.
I have taken it in to the shop.They tried:
>>moving the ignitor coil from cylinder 1 to cylinder 4,
>>and also tried moving the spark plug from cylinder 1 to cylinder 2.
>>performed compression test. Ok
The dealer suggests replacing the injector line for $1400+.( They did this with warm engine. They have not diagnosed cold engine yet. That is new, read more,...) I still have 5K kilometers left on the power-train warranty. If it is power-train I would like it resolved before warranty expires.
Now. Some new info as of yesterday:
Up till now I was not using the diagnostic monitor real time. but that started yesterday,... Last night when I got home from work while the engine was still warm I connected the diagnostic monitor and went for a drive. Every few minutes I would pull over and refresh the cylinder misfiring data. I had hardly any misfires across all the cylinders at all. Maybe 1 or 2, here or there over the span of a 10 minute warm engine ride. Up and down hilly terrain. Nothing that came close to triggering the p0301 trouble code. I parked the car outside and let it rest overnight.
Accent MC (2006-11) :: Shuddering When Vehicle Is Placed In Gear - Code P0301
When looking at the engine from the front of the vehicle. what numbers are the cylinders from left to right? To curtail off of that question where do I locate the corresponding ignition coils to these c I have been dealing with intermittent misfires on cylinders 1 and 3 codes P0300, P0301, P0303. I replaced the spark plugs to no avail. Whenever the vehicle shudders the headlights dim and the shuddering is worse when the vehicle is placed in gear, the A/C fan is on, or the vehicle is accelerating. Once I reach a certain speed, usually 35-40 mph, I don't notice until I again slow down. I replaced the spark plugs the day after I had the first issue appear which read code P0301. Prior to installing the spark plugs, I experienced a severe loss of acceleration power, but now only experience the shuddering.
2011 Hyundai Accent 63500 miles ....