roark, what's an ECU reset? I'm interested in getting the Nismo CAI too.

 

Well, i don't consider any of them intakes. The intake is the BIG METAL THING in top of the motor. That is the intake TUBE that you are talking about. I would personally go with the CRAWFORD intake. 9 PEAK hp and 20 at redline....NICE!!!

 

I have the Injen and I like it. Looks good, sounds good too. Noticed a small increase in power according to the butt dyno.

 

The Engine Control Unit, responsible for tuning air, fuel, injector timing, etc. learns the volume of air coming through the intake piping from the Mass Air Flow (MAF) sensor.

You can see this matchbox sized sensor when you install your new CAI. It is housed in a short section of intake piping between the airbox and the throttle body.

Since you will be sending more air into the system, the engine has to relearn from the MAF exactly how much air it's getting, and by resetting the ECU you tell it to make sure to relearn as soon as possible.

I say as soon as possible because the MAF works by heating a thin metal film and attempts to maintain that film at a fixed temperature. As more air blows past the film, cooling it, more electrical current is required to keep the film warm. This change in electrical current is what the ECU uses to calculate the amount of air in the intake piping.

You can achieve the same effect by letting the car idol for about 20 minutes after installing the kit before taking it out for a spin, but who wants to wait 1 minute to try out a new bolt-on go fast goody?

Here are the steps to an ECU reset as told by the shop manual.

1) Turn ignition on, wait 3 seconds
2) Push fully and release the gas pedal 5 times within 5 seconds
3) Wait 7 secs, fully push gas pedal and hold for 10 seconds until the CES light starts to blink
4) Release gas pedal (you are in diagnostic test mode 2)
5) Press and hold gas pedal for more than 10 seconds. Release pedal.

This procedure may also work for clearing the CES light after simple goof-ups like a loose fuel filler cap.

Roark

 

I just ordered a injen CAI for my Touring model...I had an option for Blue so I ordered that...hope it is to better match my daytona blue z and blue grounding wire kit

Guys (or gals) what should I do next to increase performance? Funds are a little limited at this time.

Thanks
FRIT-Z

 

Well, you could rip out your interior - passenger seat, carpet insulation, doorpanels, stereo spare tire, etc. That wouldn't cost a dime and could increase your 1-60 time by about .2 seconds

Seriously, about the next least expensive bold-on you could consider is an underdrive pully. This is just a smaller crankshaft pully so it underdrives the accessories like the A/C compressor, alternator, etc. You recoop lost horsepower and with most kits, reduce rotational mass a bit as well.

It's also a fairly simple install. The only special tools required are a harmonic balancer puller, which you can rent if you don't have/want to buy one, and a large socket for the pully nut.

Roark

 

Well, I am getting an Injen CAI today and so I assume that I'll find out the procedure for sure later, but the steps you say are in the "shop manual". When you say to "Push fully" on the gas, it this with the car "on" (as in step 1)?? If so then wouldn't you overrev the car??

Wouldn't just removing the wire from the negative battery terminal reset the ECU a lot easier?? This is the procedure that I normally hear people say to do.
-Chrismcagle