STILL dropping a cylinder
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STILL dropping a cylinder
I have a B20/LS that I thought I had fixed..... haha, not.
Here's what it does: Runs sweet for about 10 minutes or so, then starts missing like crazy, def. running on 3.
Here's what I did: Pulled plug wires, found a bunch of moisture in the plug tubes, so I figured that must be it. Also, a little oil around one of the spark plugs, so I figured the tube seal must be leaking. Took off valve cover, cleaned the crap out of everything, re-installed with some high-temp silicone in select areas so it wouldn't leak, put it back together, let it sit 24 hours. Put in NEW plugs (gapped at .044), plug wires (I also snatched the cap&rotor from my stock Integra that I know works fine). Drove it around, just like before, running on 3 cylinders after about 10 minutes. Put the cap and rotor back on the Integra, Integra runs like a dream.
Any ideas? I think I have eliminated spark, now on to fuel? I'm thinking something is failing when it gets hot.
Here's what it does: Runs sweet for about 10 minutes or so, then starts missing like crazy, def. running on 3.
Here's what I did: Pulled plug wires, found a bunch of moisture in the plug tubes, so I figured that must be it. Also, a little oil around one of the spark plugs, so I figured the tube seal must be leaking. Took off valve cover, cleaned the crap out of everything, re-installed with some high-temp silicone in select areas so it wouldn't leak, put it back together, let it sit 24 hours. Put in NEW plugs (gapped at .044), plug wires (I also snatched the cap&rotor from my stock Integra that I know works fine). Drove it around, just like before, running on 3 cylinders after about 10 minutes. Put the cap and rotor back on the Integra, Integra runs like a dream.
Any ideas? I think I have eliminated spark, now on to fuel? I'm thinking something is failing when it gets hot.
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Joined: Mar 2002
Posts: 9,854
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From: Southern California, U.S.A.
Re: STILL dropping a cylinder (derilict)
Isolate which cylinder is misfiring. Do a compression and leakdown check just to be sure. Check the spark to the misfiring cylinder. Swap injectors around from the bad cylinder. Check to be sure that you are getting an injector pulse signal to the offending cylinder. You should be able to isolate the cause.
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From: Right, Here, .
Re: STILL dropping a cylinder (derilict)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by derilict »</TD></TR><TR><TD CLASS="quote"> I have a B20/LS that I thought I had fixed..... haha, not.
Here's what it does: Runs sweet for about 10 minutes or so, then starts missing like crazy, def. running on 3.
Here's what I did: Pulled plug wires, found a bunch of moisture in the plug tubes, so I figured that must be it. Also, a little oil around one of the spark plugs, so I figured the tube seal must be leaking. Took off valve cover, cleaned the crap out of everything, re-installed with some high-temp silicone in select areas so it wouldn't leak, put it back together, let it sit 24 hours. Put in NEW plugs (gapped at .044), plug wires (I also snatched the cap&rotor from my stock Integra that I know works fine). Drove it around, just like before, running on 3 cylinders after about 10 minutes. Put the cap and rotor back on the Integra, Integra runs like a dream.
Any ideas? I think I have eliminated spark, now on to fuel? I'm thinking something is failing when it gets hot. </TD></TR></TABLE>
Is that the latest hybrid? B20/LS head, anyways, also check your valve lash, I was getting a random misfire cause my EX lash was too tight on cylinder 1 and 3. Was getting random misfire at low rpm's.
Modified by all-mtr-teg at 7:59 AM 5/22/2008
Here's what it does: Runs sweet for about 10 minutes or so, then starts missing like crazy, def. running on 3.
Here's what I did: Pulled plug wires, found a bunch of moisture in the plug tubes, so I figured that must be it. Also, a little oil around one of the spark plugs, so I figured the tube seal must be leaking. Took off valve cover, cleaned the crap out of everything, re-installed with some high-temp silicone in select areas so it wouldn't leak, put it back together, let it sit 24 hours. Put in NEW plugs (gapped at .044), plug wires (I also snatched the cap&rotor from my stock Integra that I know works fine). Drove it around, just like before, running on 3 cylinders after about 10 minutes. Put the cap and rotor back on the Integra, Integra runs like a dream.
Any ideas? I think I have eliminated spark, now on to fuel? I'm thinking something is failing when it gets hot. </TD></TR></TABLE>
Is that the latest hybrid? B20/LS head, anyways, also check your valve lash, I was getting a random misfire cause my EX lash was too tight on cylinder 1 and 3. Was getting random misfire at low rpm's.
Modified by all-mtr-teg at 7:59 AM 5/22/2008
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