Engine Hesitation at 3-4K?

[Neo]

In that case, we need to get a CAI.. LOL

Well, I noticed a small hesitation when I had my 6... but if we found out for sure that the ECU is dumping more fuel than is really needed, we should all be moving up to CAI\'s! LOL

Anyone up for a groupbuy??

lates,

[MajesticBlueNTO]

Originally posted by Neo


In that case, we need to get a CAI.. LOL

Well, I noticed a small hesitation when I had my 6... but if we found out for sure that the ECU is dumping more fuel than is really needed, we should all be moving up to CAI\'s! LOL

Anyone up for a groupbuy??

lates,

it\'s one of the reasons why the CAI is giving 10+ hp on the 3...

with the CP-E maf customizer module and CAI, the mazda6 is getting close to 30 additional hp.

if you look at your tailpipe, you\'ll notice a heavy build-up of black soot. the reasoning behind the rich fuel mixture (i can\'t remember all the details) boiled down to the fact that the EPA mandated that catalytic converters last 100,000 miles....and, somehow, the rich fuel mixture accomplishes this.

[Neo]

We have to put an end to this black soot thing! LOL

Where\'s the groupbuy for the CAI?!?!

Lates,

[Saphress]

Ummm... so you\'re saying that this is quite normal??? Or should I be mentioning this when I go in for my 8k?

[MajesticBlueNTO]

Originally posted by Saphress


Ummm... so you\'re saying that this is quite normal??? Or should I be mentioning this when I go in for my 8k?

doesn\'t hurt to mention it

[kl7402001]

Hey new to the site .. this is my first post ... i have a CAI in my 3 ...and i don\'t feel any hesitation ..I think he might be right ... I m mad tho .. u mean we could save on gas$ those bast$#ds ...

[Saphress]

(sigh)..... I gotta wait till next spring.... Grrrrr..... Money money money... Hehehehe

[Abstraction]

hey... friend of Saphress\' i thought i\'d add my two cents.
Firstly, i own an RSX - so excuse my ignorance if i\'m wrong about a lot of things, since i dont\' really know too much about the Mazda3 engine.

Anyhow.... in terms of the ECU, it\'ll hold a short term and long term fuel trim, typically the ECU adapts to the diving conditions and the aggression of the driver, but with the change in air temperature and density, the long term fuel trim might be a little fubar. quickest way around this (at least in hondas) is to pull the ECU fuse for a few seconds, put it back in, then idle the car for 10 minutes with no accessories, radio, ac, etc turned on. this will give the ECU a new baseline A/F map. I do this every time i add a mod, clean my filter, or every season when i notice significant temperature change. This not only gives me better mileage, but i find the car performs a lot better as well.

All cars naturally run a little rich in stock form - it\'s just the safe thing to do from the manufacturer\'s view point. and with that being said, there\'s really no reason to run a higher octane gas than recommended in the manual (87?). Running a high octane gas really won\'t do anything but cost you a little more money every fill up. The Mazda engine is what 10.5:1 compression? it\'s not low, but it\'s not really that high either, nor is it a particularly high output engine for a 2.3L. some people get higher octane because they feel it gives them better power or is better for their car, etc. it\'s more of a placebo, some studies have even shown that it decreases your mileage! My RSX isn\'t a type-s, and i put 87 octane in it all the time unless i\'m going to the track, the only differences i\'ve found between gasses is that Sunoco gas (even 87 octane) typically runs better for me.

CAIs - yep, a CAI is a great mod for any car and will definitely open up the engine to breathe a little easier, especially since it\'s already running rich. Of course, that extra 10HP isn\'t exactly available at all RPM, it\'s just a peak gain. i haven\'t seen a dyno of a CAI on a Mazda3, so i wouldn\'t be able to say whether it helps the hesitation problem or not .. BUT. keep in mind that adding a long tube CAI to any car will definately increase the lag time between hitting the throttle and the engine responding. with the intake further away from the throttle body, the air\'s gotta travel a longer distance - personally i find the drive by wire throttle pretty atrociously unresponsive as it is, so adding a CAI might give you the perception that you\'re lagging even more! Although it\'s a happy trade off, i know on my car i love the sound of it, and it really opens up and flies in the top end.

well that\'s my thoughts from a non-mazda3 owner... hopefully i\'ll see you guys at a meet one day

[Abstraction]

As a side note - you\'re really upset about your car running rich, couldnt\' you just slap on an SAFC (or whatever works with the mazda3)?

[Saphress]

(laugh) This guy is my mentor Welcome to my world Abz

[Saphress]

this is gonna sound definately gurlie... but what the HECK is that?!?!? SAFC?


(laugh) Anyway/ on a side note: remember a time where you started to bug me about me posting on the RSX forums? Now do you understand? arc

[MajesticBlueNTO]

Originally posted by Saphress


this is gonna sound definately gurlie... but what the HECK is that?!?!? SAFC?

Super Air Fuel Controller

hope that helps.

[Saphress]

Originally posted by MajesticBlueN

Originally posted by Saphress


this is gonna sound definately gurlie... but what the HECK is that?!?!? SAFC?

Super Air Fuel Controller

hope that helps.

Hehee... thanks... I think my brain is just numb

[MajesticBlueNTO]

Originally posted by Saphress


Hehee... thanks... I think my brain is just numb

mine still hasn\'t thawed out from saturday :hoho

i\'m waiting for this - Superchips Custom Tuning ECU Programmer

it will have more functionality than the S-AFC with this quote below being the kicker:

You will have the ability to manually adjust the air/fuel by 10% and the ignition timing by +/- 2-5 degrees.

However, we will be creating tune programs for modifications that you will be able to download to your programmer.

So chances are, when you go to install the I/H/E and you have the programmer, we will already have a tune specifically for I/H/E on a Mazda3, that you can download from our website.

Nikolas
_________________
Nikolas
VP of Draxas.com

[Abstraction]

too bad you guys don\'t have anything like the Hondata KPro - it\'s just a badass programmable ECU that you can tune with a laptop.

Originally posted by MajesticBlueN

Originally posted by Saphress


Hehee... thanks... I think my brain is just numb

mine still hasn\'t thawed out from saturday :hoho

i\'m waiting for this - Superchips Custom Tuning ECU Programmer

it will have more functionality than the S-AFC with this quote below being the kicker:

You will have the ability to manually adjust the air/fuel by 10% and the ignition timing by +/- 2-5 degrees.

However, we will be creating tune programs for modifications that you will be able to download to your programmer.

So chances are, when you go to install the I/H/E and you have the programmer, we will already have a tune specifically for I/H/E on a Mazda3, that you can download from our website.

Nikolas
_________________
Nikolas
VP of Draxas.com

[Neo]

Correct me if I\'m wrong, but isn\'t the stock airbox pulling air from the front of the car??
If that\'s the case, all we really need to do is change the filter to a more breathable unit like a K&N...

Getting a tuneable ECU is the best solution, but by no means the cheapest solution... I think going to that extreme would require you to get something worth tunning, like a turbo or something...

The stock maps should be enough.. I think making it a bit more breathable will help with the rich mixture being pumped into the engine...

Lates,

[Abstraction]

while it may be pulling air from the front of the car (as do many other stock cars), it\'s not exactly a simple air box, there\'s a lot of tubles, chambers and baffling that makes the car both smoother and quieter but also reduced the flow rate prior to the air even hitting the filter.... it\'s one of the reasons the Mazda3 is so impressively quiet, esp. at idle.

a CAI is typically an open air cone, so you get a /much/ higher cfm rate than just a breathable K&N filter. I had a K&N drop in filter on my old stratus, and to be honest it did little, if anything.

Originally posted by Neo


Correct me if I\'m wrong, but isn\'t the stock airbox pulling air from the front of the car??
If that\'s the case, all we really need to do is change the filter to a more breathable unit like a K&N...

Getting a tuneable ECU is the best solution, but by no means the cheapest solution... I think going to that extreme would require you to get something worth tunning, like a turbo or something...

The stock maps should be enough.. I think making it a bit more breathable will help with the rich mixture being pumped into the engine...

Lates,

[Saphress]

(sigh)... Mo money.... Mo Problems..... Guess I gotta wait till Spring once again

[kl7402001]

yah Saphress .... its all about $$ ... and there is not enough of it ...

This has nothing to do with the post but ... is that u in the pic?

[bluntman]

Originally posted by kl7402001


yah Saphress .... its all about $$ ... and there is not enough of it ...

This has nothing to do with the post but ... is that u in the pic?

Check the group photo taken at meet #7.

[kl7402001]

some ppl put up chicks they like and or gfs pics ... but that really is u ... cool .. i saw the meet pic .. there is quite alot of ppl .. when is the next one?

[Saphress]

(laugh) Yeah..... well I guess your question was answered/

[wtom]

Originally posted by kl7402001


some ppl put up chicks they like and or gfs pics ... but that really is u ... cool .. i saw the meet pic .. there is quite alot of ppl .. when is the next one?

The next \"official\" club meet won\'t be until the snow has dissipated a bit. However, keep an eye on our \"TM3 Meets\" section for any mini meets that might go on during the holidays and in the early new year.

[new2mazdas]

my new 05 is experiencing this as well, but seems to be getting better, will let u know in a few weeks, if by my first oil change it hasnt improved then i\"ll let the dealer know..