MAZDA 3i Lag

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jerstillman

Postby jerstillman » Tue Mar 04, 2008 9:14

So ever since i installed my CAI and exhaust whenever my car is somewhat cold i will be in first gear and if i just slowly push the gas pedal to 4k and then shift into second and FLOOR it, the car seems to lag a little bit. it sounds like its bogged down and then it will slowly increase and when it hits 3k rpm in second gear it like gets a sudden burst of power and takes off. I tried taking it to my mazda dealer in cali and after they replaced my butterfly intake valve the damn thing still does it. SOOOOO i figured i would ask the homies whats up. anyone got any ideas. Do i need to re map my ecu?

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Postby MazdaTom » Tue Mar 04, 2008 9:14

Did you reset the ECU after you installed the CAI?
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tsx_guy
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Postby tsx_guy » Tue Mar 04, 2008 9:14

what kinda exhaust did you get? in some situations these mods give up sacrafice low end torque for gains in the upper rpm range.
I might be talking out my arse tho.
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Colombia28
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Postby Colombia28 » Tue Mar 04, 2008 9:14

With the CAI you can expect to see less low end grunt, and more up high. I had a mazdaspeed CAI on my old 3 and noticed a difference down low, felt as if pulled much harder up top than in the lower revs.
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jerstillman

Postby jerstillman » Tue Mar 04, 2008 9:14

No i didnt reset the ecu after i installed it. should i have?

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Postby MazdaTom » Tue Mar 04, 2008 9:14

You're suppose to. But the ECU will eventually re-learn and adapt to the freer flowing air.

It may just be a cold engine operation thing. It goes away once it warms up?
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RX-7 Chris
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Postby RX-7 Chris » Tue Mar 04, 2008 9:14

yes.
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jerstillman

Postby jerstillman » Tue Mar 04, 2008 9:14

<div class='quotetop'>QUOTE (MazdaTom @ Mar 4 2008, 02:07 PM) [url=index.php?act=findpost&pid=29814]<{POST_SNAPBACK}>[/url]</div>
You're suppose to. But the ECU will eventually re-learn and adapt to the freer flowing air.

It may just be a cold engine operation thing. It goes away once it warms up?[/b]


sometimes.

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tsx_guy
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Postby tsx_guy » Tue Mar 04, 2008 9:14

i wonder if I should undo mine then....mmmm
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Colombia28
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Postby Colombia28 » Tue Mar 04, 2008 9:14

I don't know if reseting the ecu really does anything. I guess it couldn't hurt, but i never reset mine on my old 3 after the CAI install or on my MS3 after the Cobb install.....
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arctic_blue83

Postby arctic_blue83 » Tue Mar 04, 2008 9:14

I'm going to move this over to the NA section, as your car is not turbo/supercharged, no good to have a thread like this in the forced induction section.

jerstillman

Postby jerstillman » Tue Mar 04, 2008 9:14

<div class='quotetop'>QUOTE (arctic_blue83 @ Mar 4 2008, 07:51 PM) [url=index.php?act=findpost&pid=29897]<{POST_SNAPBACK}>[/url]</div>
I'm going to move this over to the NA section, as your car is not turbo/supercharged, no good to have a thread like this in the forced induction section.[/b]


whats up with the subaru guy in the mazda club?

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tsx_guy
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Postby tsx_guy » Tue Mar 04, 2008 9:14

<div class='quotetop'>QUOTE (Jerstillman @ Mar 4 2008, 08:17 PM) [url=index.php?act=findpost&pid=29903]<{POST_SNAPBACK}>[/url]</div>
whats up with the subaru guy in the mazda club?[/b]


he was a former mazda guy, and is all mazda at heart.
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Postby SpeedRacer » Tue Mar 04, 2008 9:14

Yeah he had the fastest / highest hp Mazdaspeed 6 in the state.
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arctic_blue83

Postby arctic_blue83 » Wed Mar 05, 2008 9:14

<div class='quotetop'>QUOTE (Jerstillman @ Mar 4 2008, 08:17 PM) [url=index.php?act=findpost&pid=29903]<{POST_SNAPBACK}>[/url]</div>
whats up with the subaru guy in the mazda club?[/b]


What those guys said.

Aside from formerly owning a Mazdaspeed 6 (formerly the highest hp MS6 in the state), I also worked at a Mazda dealership for quite a while, and contributed pretty much all of the technical stickies over in the Mazdaspeed section:
http://coloradomazdaclub.com/forums/index.php?showforum=33

One of which contains pretty much every dyno I ever pulled in my Speed6, to show the difference between mods, and how the MS cars react to different mods:
http://coloradomazdaclub.com/forums/index.php?showtopic=85

So, I've got a good bit of Mazda experience & knowledge, not to mention I think Mazda is a great company. Although, if you take a look at my sig, you'll notice I'm not close minded to any particular brand. I enjoy fun cars... it just so happens the STI is an absolute blast to drive :)


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