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Spark plug pics...sputtering

I've had an intermittant sputtering problem for a 2 days now. Feels like it is only running on 2 or 3 cylinders at times. I could barely get the car home yesterday because of the loss of power.
So far, I have changed the fuel filter and checked the fuel pressure which checks good. Checked for a vacuum leak and found the heater control vacuum line had come out at the firewall end. Replaced it, but it is still sputtering a little on a quick test drive.
What can you tell with these pics of the spark plugs? These are cyl 1 & 2 but all 4 look the same.




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Old 05-22-2013, 01:01 PM
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Color's fine. Looks like blow-by on pic 3. Dump the Autolites and go Bosch. Maybe?
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Old 05-22-2013, 01:15 PM
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Frankly my dear....
 
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^^ Agree here, ditch the platinums and get back to copper. Not sure about pic 3 being blowby, it could be arcing?...check the EHT connector for similar marking inside. Try Bosch coppers as suggested or NGKs.
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Old 05-22-2013, 01:56 PM
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Ok, two problems here.

Old 05-22-2013, 02:04 PM
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100% on doing away with the autolitespic 3 shows the seal is gone on the crip. I run bosch
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Old 05-22-2013, 04:34 PM
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I'm actually up against kind of the same problem...cyl 2 will randomly misfire. I though it was a bad fuel injector, swapped a good one in and it didn't change. Thought it was the injector wiring, so I plugged in another injector while it was misfiring and the injector was firing just fine, so it's the plug not always firing. Swapped plugs between cyl 1 and 2 and still the same, so I'm pretty sure the distributor cap is not good. It's old and needs replacing anyway. Check that.

Yeah, I wouldn't put an autolite in a lawnmower. I've had excellent results with the NGK iridium IX plugs. Some people will swear by the regular old copper plugs, but they're just being old farts. They work, but the fine wire iridium plugs last much longer and will keep a good sharp firing tip much longer. Platinum is old tech and needs to die. It does wear harder than copper, but the resistance is pretty high. The iridium has low resistance and is very hard wearing, enabling fine wire electrodes to last.
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Last edited by HondaDustR; 05-22-2013 at 10:18 PM..
Old 05-22-2013, 10:14 PM
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Definitely ditch those plugs.

The color on pic #1 is pretty good, but there looks to be white deposits on the plug in pic #2. That's a sign of running lean. If a new set plugs doesn't the problem, I'd get your injectors cleaned and check your AFM.
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Old 05-23-2013, 05:29 AM
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Honda, I think it was one of your posts that I read the O2 sensor could cause the problem so I disconnected that last night. The engine did not skip one beat to and from work last night. It's only a 15min drive to work and the sputtering has been intermittant so I'd like give it more time before I call it the problem. I'll reconnect it for now on my drive to get some new spark plugs.
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Old 05-23-2013, 05:37 AM
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16vCorey, I was typing when you posted. I plan on taking more pictures after putting in the new plugs to see if those deposits are still there.
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Old 05-23-2013, 05:51 AM
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Reconnected the O2 sensor and also disconnected the heater control vacuum line so everything is the way it was. Ran up and got some new plugs, but no sputtering. Hmm. Took it for a long and very hard drive on the freeway and backroads for about 45min. No sputtering. I dunno, maybe it was an electrical connection that I reseated.
I'll install the new plugs anyway and check them after awhile to see what they look like.
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Old 05-23-2013, 08:37 AM
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What plugs did you put in? Sounds like the plugs were the issue. I've never seen one with bad seal on it before but is sure seemed obvious.
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Old 05-23-2013, 10:27 AM
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I put in NGX BPR6ES.
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Old 05-23-2013, 01:19 PM
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Frankly my dear....
 
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Quote:
Originally Posted by HondaDustR View Post
Some people will swear by the regular old copper plugs, but they're just being old farts.
LOL - This old fart uses the good old copper core BPR6ES plugs too...'cos they work well - as this case shows too . However, have yet to try the more exotic Iridium versions...
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Red 1979 924 - Hmm Minerva blue 1979 924 - Where it all began!
Old 05-23-2013, 03:10 PM
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Quote:
ok, two problems here.



+1111111
Old 05-23-2013, 06:00 PM
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Quote:

Quote de HondaDustR



Some people will swear by the regular old copper plugs, but they're just being old farts.

LOL - This old fart uses the good old copper core BPR6ES plugs too...'cos they work well - as this case shows too . However, have yet to try the more exotic Iridium versions...
Going from Platinum to BOSCH Copper was a good improvement for me. I've heard good things about Iridium too though.
Old 05-23-2013, 06:13 PM
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I am a little concerned about the deposits on the plugs. Looks like you could be running a little lean. I wonder if the O2 sensor is signaling that the engine is running rich and leaning out the injectors? By unplugging the O2 it will place you into an open loop mode and enrich the mixture. The plug with the tracking around the base is a little iffy. Other than that the colors look great.

Do you think that the sputtering and missing could be caused by the heavy rains that we have encountered the last two days? Are the cap and wires in good shape?

I should know better than ask that last question. I wish mine was as well kept.
Old 05-23-2013, 06:44 PM
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Hey Clayton,
Now that you mention it, it did start to happen right after the first heavy rain we had on Tuesday afternoon, I think it was. That did cross my mind, but I've driven in heavy rains plenty of times and never had a problem. I'll check the cap and wires tomorrow. I'll also check the O2 sensor, it probably needs to be replaced since I haven't changed it in a long while.
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Old 05-23-2013, 08:57 PM
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I have gotten water inside the distributor cap after hitting a puddle of water. Nothing happened until I turned the car off, then it wouldn't start again. Luckily I was at home depot and I bought a can of wd40, sprayed the distributor cap and the car started right up. Just thought I would share that.
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Old 05-23-2013, 10:41 PM
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Quote:
I have gotten water inside the distributor cap after hitting a puddle of water. Nothing happened until I turned the car off, then it wouldn't start again. Luckily I was at home depot and I bought a can of wd40, sprayed the distributor cap and the car started right up. Just thought I would share that.
Kyle, stop driving through floodwater!!!
Old 05-23-2013, 10:58 PM
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Best plugs I've ever used in multiple applications are Denso Iridiums.
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Old 05-23-2013, 11:29 PM
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