DTC P0302 #2 Cylinder - Has got me stumped! HELP
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It's the only code that shows up and always results with a flashing SES. It seems to always happen around 3000 RPM within a mile of driving. No wierd noises coming from anywhere, plug looks ok, swapped coil packs and wires also.
Please fellas I need some ideas!!
Also, I tried holding a dollar bill to the exhaust tip to see if it gets sucked back towards the exhaust, hell it fluttered so bad it was hard to tell. I always thought if it sucked back towards it that it was a valvetrain issue, can't tell though.
T1 Cam, K-Motion Springs, MAC Headers
<small>[ April 20, 2002, 07:15 PM: Message edited by: Rob Orlando ]</small>
Please fellas I need some ideas!!
Also, I tried holding a dollar bill to the exhaust tip to see if it gets sucked back towards the exhaust, hell it fluttered so bad it was hard to tell. I always thought if it sucked back towards it that it was a valvetrain issue, can't tell though.
T1 Cam, K-Motion Springs, MAC Headers
<small>[ April 20, 2002, 07:15 PM: Message edited by: Rob Orlando ]</small>
#2
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Check for carbon tracking on porcelain of plug or cracks in it,check ignition wire with ohm meter against other wires for comparison, swap to other cylinders to see if missfire moves with it. Next is injector problem, it may have sticking or pluggage problem.
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I never thought of the injectors, I'll try that next!
Is it possible for a broken valve spring to be silent????
Is it possible for a broken valve spring to be silent????
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I'm going to swap injectors in the morning....Is there anything tricky or not obvious, that I am going to need to know? I can't find any write-ups?? Once depressurized, the injectors should come off the fuel rail pretty straight forward, right?
I just got the car out of the garage today after a long winters sleep. Changed the oil and fuel filter and was ready to spend the day cruising!
Oh well it's time for <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />
<small>[ April 20, 2002, 08:54 PM: Message edited by: Rob Orlando ]</small>
I just got the car out of the garage today after a long winters sleep. Changed the oil and fuel filter and was ready to spend the day cruising!
Oh well it's time for <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />
<small>[ April 20, 2002, 08:54 PM: Message edited by: Rob Orlando ]</small>
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<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> It is not an injector either <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Is there anything else I can check other than pulling the valve cover and checking the springs, etc??
The car runs strong, I let it idle for about 10 minutes before I drove it, as always once I reached 3000rpm it flashed the code! Timing at wide open is down to 25.5, 40 at cruise, does that have to do with the code? Never noticed it top be so low.
I hate to take it to a shop if I can avoid it, any other help would be apreciated!
<small>[ April 21, 2002, 02:08 PM: Message edited by: Rob Orlando ]</small>
Is there anything else I can check other than pulling the valve cover and checking the springs, etc??
The car runs strong, I let it idle for about 10 minutes before I drove it, as always once I reached 3000rpm it flashed the code! Timing at wide open is down to 25.5, 40 at cruise, does that have to do with the code? Never noticed it top be so low.
I hate to take it to a shop if I can avoid it, any other help would be apreciated!
<small>[ April 21, 2002, 02:08 PM: Message edited by: Rob Orlando ]</small>
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Wow it would be cool if I knew where it was. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
I think it is time to invest in some Service Manuals. I can't stand to pay to have it done. I think it is time to support my local speed shop though.
Thanks for the help.
<img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
I think it is time to invest in some Service Manuals. I can't stand to pay to have it done. I think it is time to support my local speed shop though.
Thanks for the help.
<img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
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Don't know if you want to do this, but you could pull the valve cover, and take off the #2 rocker and check to make sure that the pushrod is straight. Might be good to check them *all*.
Sometimes it's nice to drop off a car and say "fix it, here's my credit card." <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Sometimes it's nice to drop off a car and say "fix it, here's my credit card." <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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try swapping the #2 spark plug with another cylinder and see if the misfire changes cylinders.
If that doesn't change anything, then I would pull off the rocker arms and check for a bent push rod. If you find a bent pushrod I would pull all 16 rods out and check them. I have never seen just one pushrod bend. It's usually at least 2.
If that doesn't change anything, then I would pull off the rocker arms and check for a bent push rod. If you find a bent pushrod I would pull all 16 rods out and check them. I have never seen just one pushrod bend. It's usually at least 2.
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</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>It's the only code that shows up and always results with a flashing SES. It seems to always happen around 3000 RPM within a mile of driving. No wierd noises coming from anywhere, plug looks ok, swapped coil packs and wires also.
Please fellas I need some ideas!!
Also, I tried holding a dollar bill to the exhaust tip to see if it gets sucked back towards the exhaust, hell it fluttered so bad it was hard to tell. I always thought if it sucked back towards it that it was a valvetrain issue, can't tell though.
T1 Cam, K-Motion Springs, MAC Headers</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You said you swapped wires and packs. Try swapping #2 with another plug. If it comes back as #2 you know it's NOT coils/plugs/wires. Just my .02
<strong>It's the only code that shows up and always results with a flashing SES. It seems to always happen around 3000 RPM within a mile of driving. No wierd noises coming from anywhere, plug looks ok, swapped coil packs and wires also.
Please fellas I need some ideas!!
Also, I tried holding a dollar bill to the exhaust tip to see if it gets sucked back towards the exhaust, hell it fluttered so bad it was hard to tell. I always thought if it sucked back towards it that it was a valvetrain issue, can't tell though.
T1 Cam, K-Motion Springs, MAC Headers</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You said you swapped wires and packs. Try swapping #2 with another plug. If it comes back as #2 you know it's NOT coils/plugs/wires. Just my .02