Code P0301. Has got me confused?
Thread Starter
On The Tree
Joined: Dec 2001
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From: San Diego, CA, USA
Code P0301. Has got me confused? I know it's #1 cylinder misfire. When I first got the code I changed the plug and wire. After driving for about 5 miles the code(SES light) went off. Then after driving for about 90 miles code came back. Turned the car off started the car again code went away.
Anyone have this problem before? I am going to change the coil to see if that helps.
Any ideas?
Thanks Jason
Anyone have this problem before? I am going to change the coil to see if that helps.
Any ideas?
Thanks Jason
Re: Code P0301. Has got me confused? More than likely the coil, if you already changed the plug and wire and its back.
Good luck. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Good luck. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Staging Lane
Joined: Jan 2002
Posts: 69
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From: Cuyahoga Falls OH
Re: Code P0301. Has got me confused? I recently had a P0302 code, swapped plug, wire, coil pack, and injector. Ended up being a broken exhaust spring. Just hope it's one of the easy fixes. How does the plug looked compared to the one next to it? My #2 was black compared to others.
Good luck
<small>[ May 18, 2002, 09:36 PM: Message edited by: Rob Orlando ]</small>
Good luck
<small>[ May 18, 2002, 09:36 PM: Message edited by: Rob Orlando ]</small>
Thread Starter
On The Tree
Joined: Dec 2001
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From: San Diego, CA, USA
Re: Code P0301. Has got me confused? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Rob Orlando:
<strong>I recently had a P0302 code, swapped plug, wire, coil pack, and injector. Ended up being a broken exhaust spring. Just hope it's one of the easy fixes. How does the plug looked compared to the one next to it? My #2 was black compared to others.
Good luck</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Was your code on all the time? Mine will come on then go off. Pretty strange. I changed all the plugs and wires. They were all normal. I also swapped the number 1 and 2 coils. Just to see if it was the coil. Nope still misfire on number 1.
When I got the code I put a-tap on it. It said at the time of the code my A/F was 14.7:1. I took a couple of screen shots. Could I email them to you. Maybe you can check them out for me?
Both the misfires happened at 1100 rpm and 2400 rpm?
Thanks Jason
<small>[ May 19, 2002, 11:15 AM: Message edited by: superchargedZ ]</small>
<strong>I recently had a P0302 code, swapped plug, wire, coil pack, and injector. Ended up being a broken exhaust spring. Just hope it's one of the easy fixes. How does the plug looked compared to the one next to it? My #2 was black compared to others.
Good luck</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Was your code on all the time? Mine will come on then go off. Pretty strange. I changed all the plugs and wires. They were all normal. I also swapped the number 1 and 2 coils. Just to see if it was the coil. Nope still misfire on number 1.
When I got the code I put a-tap on it. It said at the time of the code my A/F was 14.7:1. I took a couple of screen shots. Could I email them to you. Maybe you can check them out for me?
Both the misfires happened at 1100 rpm and 2400 rpm?
Thanks Jason
<small>[ May 19, 2002, 11:15 AM: Message edited by: superchargedZ ]</small>
Staging Lane
Joined: Jan 2002
Posts: 69
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From: Cuyahoga Falls OH
Re: Code P0301. Has got me confused? I would not get the code until 2k rpms either, the code never showed up at idle, however it did throw the p0300 at idle. Since it was fixed I get no misfire codes at all.
How does the car run? I was down on power, and it idled rough as well. You could tell something was wrong.
Try swapping injectors, if that doesn't fix it I sure the valve cover will have to come off, I don't know what else external it could be.
<small>[ May 20, 2002, 10:44 AM: Message edited by: Rob Orlando ]</small>
How does the car run? I was down on power, and it idled rough as well. You could tell something was wrong.
Try swapping injectors, if that doesn't fix it I sure the valve cover will have to come off, I don't know what else external it could be.
<small>[ May 20, 2002, 10:44 AM: Message edited by: Rob Orlando ]</small>
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Thread Starter
On The Tree
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From: San Diego, CA, USA
Re: Code P0301. Has got me confused? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Rob Orlando:
<strong>I would not get the code until 2k rpms either, the code never showed up at idle, however it did throw the p0300 at idle. Since it was fixed I get no misfire codes at all.
How does the car run? I was down on power, and it idled rough as well. You could tell something was wrong.
Try swapping injectors, if that doesn't fix it I sure the valve cover will have to come off, I don't know what else external it could be.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I replaced all the drivers side plugs. All looked normal. The car doesn't seem to be down on power. When I got the code I looked at the read out it gave. It said my injector pulse rate for that cylinder was lower the #2. Not much lower.
I took a couple of screen shots of the readout.
<strong>I would not get the code until 2k rpms either, the code never showed up at idle, however it did throw the p0300 at idle. Since it was fixed I get no misfire codes at all.
How does the car run? I was down on power, and it idled rough as well. You could tell something was wrong.
Try swapping injectors, if that doesn't fix it I sure the valve cover will have to come off, I don't know what else external it could be.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I replaced all the drivers side plugs. All looked normal. The car doesn't seem to be down on power. When I got the code I looked at the read out it gave. It said my injector pulse rate for that cylinder was lower the #2. Not much lower.
I took a couple of screen shots of the readout.
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Verdad Gallardo Staging Lane
Joined: Jan 2002
Posts: 69
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From: Cuyahoga Falls OH
Re: Code P0301. Has got me confused? I would swap the injector, also you can check the injector with a voltmeter to see if it is in spec with the rest, if I remember mine were all at 12. I think the range is large 6-16 if I remember correctly.
Thread Starter
On The Tree
Joined: Dec 2001
Posts: 186
Likes: 0
From: San Diego, CA, USA
Re: Code P0301. Has got me confused? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Rob Orlando:
<strong>I would swap the injector, also you can check the injector with a voltmeter to see if it is in spec with the rest, if I remember mine were all at 12. I think the range is large 6-16 if I remember correctly.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yep, we swapped the injectors. Now I record over 65 misfires in #1 cylinder. Maybe bent pushrod? Or valve spring?
Jason
<strong>I would swap the injector, also you can check the injector with a voltmeter to see if it is in spec with the rest, if I remember mine were all at 12. I think the range is large 6-16 if I remember correctly.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yep, we swapped the injectors. Now I record over 65 misfires in #1 cylinder. Maybe bent pushrod? Or valve spring?
Jason
