Ok some silly questions, but none the less:

1) I heard that ecu flashes on the 04's were finally possible, but these particular car had shown very minimal gains, and if I remember correctly sometimes a loss also. So would you guys say that these problems have been finally fixed?

2)Is the Technosquare flash the same thing as the AAM flash?

3) How do I access my ecu on the 2004 model, and what code does the ecu have to say? (is it r4 for it to be a safe flash?)

4) Probably the dumbest question, but my Z is my dd--can you drive the car without the ecu? <--please dont laugh haha.

5) Are the custom flashes just as effective, and what all mods should be done prior to flashing? right now all I have is I/e.

Thanks fellas, and congrats on the damn good results!

ravi

 

I am, by no means, an expert in ECU re-flashes, but here's my take on your concerns from personal experience....
1) For answers to this, there are two routes.....look for & read results posted on the forums or just call TS or AAM
2) Just as TS has different parameters for their various flashes depending on the mods installed, I'm sure AAM has done research and varied their flashes as well. As for choosing one company or the other, that's up to you - location of company to your locale, posted results, personal preference, reputation, etc. Research is invaluable in choosing a company.
3) On their website ( www.technosquareinc.com ) TS has instuctions with pics on the ECU location & removal. If I remember correctly, the '04 code of R4 is the '04 ECU being re-flashed.
4) No, the car is disabled after removal of the ECU
5) From what I've read and talked to fellas on, an ECU re-flash seems to help regardless of the # of mods installed. Do to cost considerations, I would wait, however, until the bulk of your mods are completed. If you're done with just the intake & exhaust, go for it. But, if you plan on adding more (i.e. cats, plenum, headers, pulleys, etc.) I personally would wait.

Also remember that the re-flash also gives you a few neat things regardless of the mods - raised redline & removal of the speed limiter (as if 156 mph isn't fast enough - ha!). And make sure you have access to a reputable dyno location to check a/f levels after the re-flash is completed - better to be safe!

Hope this helps a bit from my limited experience..........

 

I live on the Big Island of Hawaii and there isn't a dyno here available for A/F testing. Is there another way for me to test my A/F ratio? I don't want to be left wondering if my car is safe and reliable. Also, who's cheaper, TS or AAM? They both seem very capable of doing what they're meant to do so money saved is money put into more parts. Thanx

 

Cool, my parents have a place in Kona, must be rough waking up to 80 degree weather everyday Hawaii is awesome!

You would need a wideband A/F gauge. PM me if you want one as I know a board running a special for their members for 350 shipped on the AEM gauge

 

AEM A/F gauge is all i need? Is it difficult to install one of these? I'll look into this. Thanx for your advice.

 

It depends, you need to have another bung in your exhaust. The Labree resonated testpipes I have include an extra bung so this makes things a lot easier. Beyond that, it is about as difficult to install as any other gauge.

 

Moved...

 

Hey fellas sorry to revive this thread. But I'm wondering on the TS reflash your Rev limiter is set at 7100? I'm sending my ecu out tomorrow morning for the Crawford flash. When I get it back and take it to the dyno would it be safe to dyno all the way to 7100?? What happens? Fuel cut off like stock but at 7100??

Thanks.

 

i have 04 im going to get a TS lspec and tune w/ emanage most likely

 

Be the same as hitting the stock rev limiter, but only at 7100.

 

don't get the emanage guys...get the apexi AFCII

 

I'm selling my S-AFC II . I got it tuned and it was good on the dyno. But after a day, I'm getting knocks like crazy. Like other people said the ECU is compensate the adding fuel by the S-AFC and trying to fix it. So I wasted almost $150 to tuned the S-AFC and now have to fork opout $595 for the TS flash Shouldn't tuned the S-AFC and go straight to the TS flash

 

I am planning on getting crawford or kinetix plenum soon. Mods are intake, grounding kit, pulleys, headers, test pipes, exhaust. I was wondering if i get it reflashed it will automatically adjust to whatever mods i put on it? Cause im also planning on buiding the engine in near future.

 

Z phat Z, did you do the O2 sensor non fouler mod? I really think if you did it, it'd hold the tune.

Believe me when I say I'm not sure the TS flash really holds either....at least when you get to a certain point with power

 

why not get the emanage?

 

if you raise limit to 7100, will the stock valve train components be able to handle it? (valvesprings etc..)

 

sentry65
I didn't do that mod. All I did was drilled a O2 bung into the exhaust pipe to read A/F ratio. Where do you put the O2 sensor non fouler? before the cats or after the cats? How does it works? TIA.

 

I had a big long post explaining a lot but my browser crashed and not feeling like retyping it...

the cats have a stock O2 sensor in each one I think

you add your own so that YOU can read the A/F ratio or send to a piggyback unit.


the emanage by itself will adjust the injectors to do what you want and it's great, but it won't hold a tune

You have 3 issues with the ECU to tackle.

The MAF reporting voltage within stock range - Apexi unit solves this

the cat's O2 sensors reporting good emissions - non fouler mod solves this (or soldering certain wires)

the injectors giving you more fuel than the stock ECU was designed to do. TS or AAM flash or emanage will solve this


I do not know if you can or how easily you can run BOTH the Apexi unit and emanage at the same time...would love to know more info on it

other option is to get a standalone EMS to control the ECU directly


I'll make a big write up later down the road after I can confirm my findings or not with the ECU

 

ok see this thread about the ECU

https://my350z.com/forum/showthread....36#post1434136

 

What about that unichip thing I saw...? It looks like it posted some amazing gains, and costs a LOT less then getting constant TS reflashes...