If you have read some of my previous threads on questions about installing a flowmaster on my car you will know that I installed the muffler for sound purposes ONLY. (refer to the post below, it sums it all up) I'm just wondering why my top end seems less substantial than before. I was wondering if the flowmaster actually flows less at high rpms than the stock? I did change my intake setup : I swapped out my WR midpipe and replaced it with the stock resonator. Would this explain the loss of top end?


Actually I got more tone than sound with my flowmaster 50 deltaflow btw.

 

Unless you dyno'd said set-ups, or took MAF data, no one can answer that question.

Well, that's what I experienced.

But good for you, do you want chocolate chip, or peanut butter?

 

Thanks man, I would really appreciate it. I'm thinking you're probably right as to the cause. Are you replacing your MAF per the TSB?

 

 

yeah, it's a dealer.. i don't think i have anybody like that.. however.. from my understanding and experience, you make sure the frame is aligned straight, and look to make sure the gaps between the hood and the panels are smooth, and that no engine parts are painted.. is there anything else i should look for? (my girlfriend's car was in a wreck and fixed up EXTREMELY poorly.. that's how i know to look for all that stuff)

 

Does anyone know why the search through google doesnt work anymore?

I have a rather peculiar problem. 01 gle auto 157k.

The car idle drops when i put her in reverse, there is some vibration in the steering but no vibration through the seats or pedals. In drive the car appears to idle closer to 600 than 700. and in reverse drops under 600 but not very close to 500.

I am wondering if i need to clean the MAF, throttle body? i have never done that before.

no codes... fresh auto trans fluid drain+fill .. oil change due in 800miles... all other maintenance has been done...

 

I'm running Safari/Firefox on OS X Leopard, I'm trying to configure various settings tho

... this might be a tough one

 

Anyone heard of or used Techno Square for tuning? Mine runs lean because of intake and exhaust mods.

 

techno square isnt for tuning. its a reflashed ECU.

this is for tuning http://www.uprev.com/index.html

 

How do you know you’re running lean? Do you have an AFR readout prior to any catalytic converters?

You’re probably running rich, either way, TS is a cookie cutter ‘tune’. Get it(TS reflash) if you have the $$ and don’t really want to dive into changing/monitoring ECU/engine parameters yourself.

 

Our cars run rich, and I highly dought you are running lean from the intake and exhaust. If you are indeed running lean, there is a possibility that something is wrong with your MAF, fuel pump...I'm sure you see where i'm headed...

 

this is for tuning http://www.greddy.com/products/displ...SubCategory=47

this is for watching http://www.uprev.com/index.html

 

Apexi makes the SAFC II, VAFC II and the new Neo.
Read this: http://forums.maxima.org/showthread.php?t=334314

 

I know because I had the vehicle dynoed. It's definetely lean.

 

Wouldn't a faulty MAF or FP throw a code?

 

I tried using the NEO. The '02 Maxima has some sort of electronic idle control. The NEO did not work.

 

Have you even heard any feedback from TS?

 

I’m guessing you didn’t connect it correctly. Stop being so vague, give greater details. We all know 02+ are electronic throttle, not a big deal, i have an AFC and it works fine, give more details to back your claim. And no, an incompetent installer is no excuse.

 

Thanks for the tip. I'll try another installer...

 

i also have one installed, along with many many members here. if you get it installed correctly it will work. dont forget to cut the MAF wire

 

It looks like Uprev reflashes as well

 

not for our cars

 

There’s only one true aftermarket ‘performance oriented’ ECU reflash for our cars, and it is Technosquare.

Also, the context for which you used the term reflash in this post:
implies that you consider an AFC a reflash, and that is incorrect. An AFC is not a reflash.
This is correct, it can only be used on 350zs/Titans/G35s. It has not yet been tested on 6th gen Maximas yet, and will not work with 5gens (or 5.5 gens).

 

Explain feed back? I have a TS ECU, so, is that feedback? Need ………… more……….descriptive…………posts.

Also, how lean was it, and was your AFR reading taken BEFORE your catalytic convertors?

Also, how lean was it, and was your AFR reading taken BEFORE your catalytic convertors?

More than likely.

 

What do you mean explain feedback? Feedback means the return of information about the result of a process or activity. You have a TS ECU. So, you sent your ECU to TS for a reflash. Upon getting it back, you tuned it by hooking up an AFC to it?

 

There are no cats. I removed all the cats when I installed the headers.

 

As soon as I find the results, I'll let you know.

 

Here are the dyno results: whp 190.32 wtq 197.56
AFR fluctuated around 15.

 

what type of dyno? was the AFR taken using a tailpipe sniffer or WBO2 before the cat?

 

TS Feedback:
http://forums.maxima.org/showpost.ph...79&postcount=6

 

anybody?

 

/\/\ I think you've pretty much got it all, does the dealer happen to know where the body work was done, any records of it? Reputable body shops warrant their work for a long time.

 

You paranoid maxima.org member. You've got it covered.

 

I think your safe with looking for those things

 

anyone have the headlight swap thread

 

lol.. thanx guys.. i'm goin to look at the car tomorrow.. wish me luck

 

Read the stickys, most namely the one entitled:
http://forums.maxima.org/showthread.php?t=543973

Then go to the How To Sticky, and locate the post you want, here it is:
Hit control F, and type in: HID, after you scroll down a bit, you’ll be here:
http://forums.maxima.org/showpost.ph...0&postcount=38

Now apply what you learned by reading the first sticky/link I provided, and you get this:
http://forums.maxima.org/showthread.php?t=47646

Next time, I won’t be so nice, so, my advice:

Take some time to read the firs post of this thread, and while you’re at it, read stickys.

 

tailpipe.

 

Have you removed your main cat? Under the car? The header system only removes the pre-cats, so unless you have replaced the stock cat with a test pipe, you still have a cat. And a cat back does not replace the stock main cat, so that would rule it out in that case too.

 

Old AFCs are discontinued according to Apex. The old units were replaced by the NEO, which is more "universal" and will not work for our cars according to the company. Sounds like I need to find an old AFC on ebay or something.