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 07 ex 4cyl m/t Hickup in powerband
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AK_CRX




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284 posts [100%]
Anchorage ALASKA
10-2-2003
  07 ex 4cyl m/t Hickup in powerband« » 1:54 PM 5/4/2008 Reply  Edit

Just started noticing this in my 07 accord ex sedan. As I accelerate and shift through the gears, it never fails to have a hickup RIGHT @ 2,250-2,500 rpm in third gear especially. It's there in first and second gear, but barely noticeable, but third gear it's a definately their. If Im flooring it it wont happen, only happens at partial-moderate throttle. I checked with my service writer, he says there are no recalls, no reflashes for the car. I just wanted to check and see if anyone has had the same issue.


NOOB to Honda-Tech, not to Honda's

'88 CRX sohc turbo 12.9 @ 110
'90 CRX Si barbados yellow f23 non-vtec f2d boosted.... torque anyone?
Yeah, I rock a Honda tattoo...



msedacca




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656 posts [100%]
Orlando FL
12-7-2005
 « Re: 07 ex 4cyl m/t Hickup in powerband (AK_CRX)« » 6:09 PM 5/5/2008 Reply  Edit

That's roughly the VTEC crossover point so that might be an issue. i-VTEC unlike other forms of VTEC means you're pretty much in VTEC at all times, which is why it engages so low. Might want to start there.


2004 Honda Accord k24a4 boosted sedan

7th gen pioneer
303whp/285wtq
**First ever auto to 5spd swap in a 7th gen**
13.71 @ 99mph Rockingham


MustangLX6.0




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32 posts [100%]
monroe nc
12-23-2007
 « Re: 07 ex 4cyl m/t Hickup in powerband (AK_CRX)« » 10:05 PM 5/6/2008 Reply  Edit

There should be no hiccups in the powerband. Since it is under warranty I would have a dealer check it out. There is no V-tec engagement like the old b-series engines. I-vtec has a constant varible intake cam so vtec is always "engaged" ive driven many accords and none have hiccups like you describe


Rides:
89 Isuzu Pickup - 2.6 4-cyl (daily beater)
91 Accord EX (Wifes ride)
90 Mustang LX 5.0 (Project/Toy) - Rear Disk, 3.55 Gears, Full Exhaust

AK_CRX




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284 posts [100%]
Anchorage ALASKA
10-2-2003
 « Re: 07 ex 4cyl m/t Hickup in powerband (MustangLX6.0)« » 3:21 AM 5/7/2008 Reply  Edit

yeah, I work at the dealership so I've driven a LOT of 'em... I'm pretty sure I understand the problem, but what sucks is there's probly nothing the dealership is going to do about it. It's even harder to get service at a dealership when you work there. IMO I think the car was tuned for better gas than the 87 octane I've been putting in it. To me it just feels like it's either a little lean or there's too much timing right at that point. I just wish there was an 07 accord on my lot with a manual trans. so I could see if it does the same thing. I'm gonna get it in for a diagnoses, I'll let you guys know if the tech. comes up w/ anything.


NOOB to Honda-Tech, not to Honda's

'88 CRX sohc turbo 12.9 @ 110
'90 CRX Si barbados yellow f23 non-vtec f2d boosted.... torque anyone?
Yeah, I rock a Honda tattoo...

   

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