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Old 03-18-2005, 05:43 AM   #1
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Default d15b7 misfire?

When I fire it up, especially on the colder mornings, she'll idle at 1500rpms. About every 10 seconds or so the engine will *POP* and the idle will drop 200rpms and go right back up to 1500. It'll do that until I start driving, then everything's fine. Plugs have ~1000 miles, wires ~12,000 miles and cap and rotor ~8000 miles. Let's hear some theories and how to go about fixing this. TYIA
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Old 03-18-2005, 06:15 AM   #2
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Default Re: d15b7 misfire? (JimmyAtlantis)

Quote:
Originally Posted by JimmyAtlantis
When I fire it up, especially on the colder mornings, she'll idle at 1500rpms. About every 10 seconds or so the engine will *POP* and the idle will drop 200rpms and go right back up to 1500. It'll do that until I start driving, then everything's fine. Plugs have ~1000 miles, wires ~12,000 miles and cap and rotor ~8000 miles. Let's hear some theories and how to go about fixing this. TYIA
How many miles does the motor have? That kind of stuff happens to honda motors all the time. When the motor is cold, fuel doesn't dissipate into the air as quickly, and the cylinder doesn't fire. My car is hell to drive on a cold morning until it warms up. I wouldn't worry about it unless the engine actually dies when it misfires.
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Old 03-18-2005, 08:12 AM   #3
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Default Re: d15b7 misfire? (93delslo)

The engine has 152,500 miles. Honda engines may do this, but I want to fix it. Anyone else have any help?
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Old 03-18-2005, 08:14 AM   #4
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Default Re: d15b7 misfire? (JimmyAtlantis)

its not a big deal at all, but the first thing I would check is that you have the correct gap for all your spark plugs.
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Old 03-18-2005, 09:04 AM   #5
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Default Re: d15b7 misfire? (93delslo)

Bump for some more opinions. C'mon guys...this is REAL tech.
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Old 03-18-2005, 10:20 AM   #6
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Default Re: d15b7 misfire? (JimmyAtlantis)

WTF? I haven't been in here in a while, but has this turned into the forum of stolen cars, HIDs and hood locks? ClubSI? Click the image to open in full size.
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Old 03-18-2005, 11:48 AM   #7
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Default Re: d15b7 misfire? (JimmyAtlantis)

So nobody knows **** about d15b7s? Is it not JDM enough for help?
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Old 03-18-2005, 12:19 PM   #8
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Default Re: d15b7 misfire? (JimmyAtlantis)

Testing 1, 2...1, 2. Is this thing on?
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Old 03-18-2005, 01:07 PM   #9
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Default Re: d15b7 misfire? (JimmyAtlantis)

when my d15b7 started doing that i lost compression shortly after so get a compression check and also check for any block wear good luck
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Old 03-18-2005, 01:28 PM   #10
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Default Re: d15b7 misfire? (clint g)

What exactly has to be done to regain compression?
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Old 03-18-2005, 01:33 PM   #11
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Default Re: d15b7 misfire? (JimmyAtlantis)

piston rings, gotta take apart the block
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Old 03-18-2005, 02:00 PM   #12
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Default Re: d15b7 misfire? (93delslo)

I'd probably be best off just doing a complete rebuild or finding a new engine, huh?
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