Engines sputtering i guess you can say...

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Old 08-08-2007, 02:13 PM
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Engines sputtering i guess you can say...

When im revving at around 6700 rpms in 3rd gear it sputters back to 6500 and then throughout the rest of the powerband.. Does anyone know what this may be. i heard it may be the spark plugs but i dont know.
Old 08-08-2007, 02:31 PM
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That's a tough one. So its only at those rpms?
Old 08-08-2007, 05:20 PM
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exact rpms is 6700 rpms to 6500 in 3rd gear.. and thats the only gear. unless 4th too lol.. but i havent pushed it that hard.
Old 08-08-2007, 05:40 PM
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Geez, you've got me stumped. It has to be something with the tranny (3rd gear) otherwise the engine would be doing it in the other gears as well. Does it matter if you're at WOT (accelerating hard) or just holding 6700rpm at a steady speed?
Old 08-08-2007, 05:46 PM
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hmm.. i havent been able to try it at a stable speed cuz in 3rd gear im at 95 mph lol.. but this guy on the other forum said that his 06AT isnt very smooth in vtec in 3rd gear.. im taking to acura tommarow because today i took it to honda and they had no idea what it was.
Old 08-08-2007, 06:41 PM
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Is the engine completely warmed up? If not, the fuel cut-off is lower.
Old 08-08-2007, 10:46 PM
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Yeah it does it always.. no matter what time i do it.. Plus i always warm up my car before i run it hard. Ill take a video tommarow and show you guys what i mean.
Old 08-08-2007, 11:39 PM
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Originally Posted by RaCeR4LiFe022
hmm.. i havent been able to try it at a stable speed cuz in 3rd gear im at 95 mph lol.. but this guy on the other forum said that his 06AT isnt very smooth in vtec in 3rd gear.. im taking to acura tommarow because today i took it to honda and they had no idea what it was.
95 mph at 3rd gear? I don't think you should tell acura that when you visit them...or else they might add a note to your record or something ;-P
Old 08-09-2007, 01:13 AM
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lol it was at the track =]
Old 08-09-2007, 01:41 AM
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maybe your synchros are going? cause my buddy's 2nd gear on his prelude slips out sometimes and the rpms bog
Old 08-09-2007, 10:16 AM
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not a chance ...
Old 08-09-2007, 10:21 AM
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Originally Posted by RaCeR4LiFe022
exact rpms is 6700 rpms to 6500 in 3rd gear.. and thats the only gear. unless 4th too lol.. but i havent pushed it that hard.
could be the fuel pump - low pressure or low delivery capacity - only way to
effectively test would be with a pressure gauge on the system while you're
on the track. Maybe the dealer has a static test procedure thaat I don't know
about. Good luck.
Old 08-09-2007, 10:41 AM
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Originally Posted by nbtx
could be the fuel pump - low pressure or low delivery capacity - only way to
effectively test would be with a pressure gauge on the system while you're
on the track. Maybe the dealer has a static test procedure thaat I don't know
about. Good luck.
but wouldn't that be the case in any gear?
Old 08-09-2007, 11:04 AM
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yeah thats what i thought... im taking a video today i just have to see if my closed road is empty
Old 08-09-2007, 11:49 AM
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http://youtube.com/watch?v=CsDjFC5rDFc

This is the video of the problem.. 1st run i let off right after it happend 2nd run you can hear it more than see but i pushed it further..
Old 08-09-2007, 01:13 PM
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Originally Posted by jlukja
but wouldn't that be the case in any gear?
Probably.

I'm still thinking it's running lean, but ... that "should" set a CEL.
Another possibility is the Buddy Club Condensor and T1R Groundwires
which I'm not familiar with.

How many miles on the car, and did this happen before the condenser and
groundwires were installed?
Old 08-09-2007, 01:24 PM
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i never really ran my car before the condensor.. and i have 6000 miles.. heres what ill do ill completely take out the buddy club condensor and ground wires even tho i took out half of them and it didnt do anything.. then ill test it out.
Old 08-09-2007, 08:11 PM
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Are you using 89, 91 or 93 octane gas?

It can also be the torque convertor locking up, as shown on the dyno charts for an auto TSX on vtec.net.
Old 08-09-2007, 08:22 PM
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Just chiming in here, I have an 06 5AT and I have never experienced this problem. I have taken it to redline in sport shift mode many times in 1st, 2nd, 3rd, and a few times in 4th. I almost always use 91 octane Sunoco although a few times I have used 93 octane Mobil and 94 Shell.

All gasoline in my area is marked with this gasoline MAY contain up to 10% ethanol... not sure if that only applies to the cheap gas or not.

Hope this gives you some idea.. if you're doing the same things and having this problem I would take it to the dealer.
Old 08-10-2007, 12:02 AM
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i always use 91...
Old 08-12-2007, 11:57 PM
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ny, always 93 =]
Old 08-13-2007, 09:26 AM
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i meant 93 whooops lol
Old 08-13-2007, 03:13 PM
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I have a similar problem in my 05AT. But mine happens at around 5500 rpms or so. I get to around that range and the RPMs just sit there and won't move past 5500.
Old 08-14-2007, 02:14 AM
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what gear?
Old 08-23-2007, 04:30 AM
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That seems like torque converter lockup, but if it's not happening to anyone else, who knows…
Old 08-25-2007, 10:19 PM
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hmm.. interesting.. well. it only does it WOT.. i checked..
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