Sr20det problem

[Loomis112]

So today I was sitting in a drive through bored so I started messing around with my afc-neo. (Sr20det Redtop)

I didn't change any setting I was just scrolling through it and all of the sudden when I got to the hotwire I guess I might have changed the In setting to 2 instead of 1 and the car just died.

I quickly figured it out and set it back and the car ran an idled fine... Ok no big deal right?

Well as I go down the street I start to do a pull and the car feels funky like the spooling slow etc and when it hits 4K all of the sudden it starts to sputter and shit ( it was fine before I changed the setting) So I go throught the steps of writing all the afc info down and re-initializing it and setting it all back and the problem still stands



My question is what do you guys think it is? Maf, ECU, settings? ( Update: I eliminated that it was the Ecu or the settings of the afc now I'm really confused....)

I've heard of MAFs going bad but really it just shit out in a 5 second period?

Anyways I'm running a Z32 MAF, Apexi neo-AFC and stock ECU

Help would really be appreciated thank you....


Also I took a quick video of how it's acting

Sr20det problem - YouTube (http://www.youtube.com/watch?v=YM3o8vKlvOE)

[cotbu]

Z32 mafs is 2in, the ecu if tuned for z32 2out, if the ecu is a stock red top it would be 6out. Your ecu would have learned by now and probably needs to have the ltft and stft reset or just drive it around for awhile.

Sent from my Highly Tune Galaxy S3.4!!!

[Loomis112]

Z32 mafs is 2in, the ecu if tuned for z32 2out, if the ecu is a stock red top it would be 6out. Your ecu would have learned by now and probably needs to have the ltft and stft reset or just drive it around for awhile.

Sent from my Highly Tune Galaxy S3.4!!!


See the thing is, is when I set the in to 2 the car dies and wont run properly at all....

[Mikester]

Pull that AFC the hell out and never look back. Want to adjust PROPERLY for a Z32 MAFS? Send your ECU to JWT or Enthalpy and take the guess work out altogether; and get much better overall performance in the process... and as a bonus- not have any 'additional points of potential failure' messing with your ECU's 1's and 0's.

Don't get me wrong... Snoop knows his stuff and he is probably telling you the exact right thing to do- but IMHO, you are not doing yourself any favors running an AFC, SAFC-II or any other pseudo-tuning mechanism.

[Loomis112]

Pull that AFC the hell out and never look back. Want to adjust PROPERLY for a Z32 MAFS? Send your ECU to JWT or Enthalpy and take the guess work out altogether; and get much better overall performance in the process... and as a bonus- not have any 'additional points of potential failure' messing with your ECU's 1's and 0's.

Don't get me wrong... Snoop knows his stuff and he is probably telling you the exact right thing to do- but IMHO, you are not doing yourself any favors running an AFC, SAFC-II or any other pseudo-tuning mechanism.

If you have used enthalpy before where do you recommend getting one or just JWT instead?

I got a Enthalpy tune once not from Scott but from some guy off the Enthalpy site and my car ran really badly like it had no maf. So I talked to him about it (can't remeber his name) and he said my maf was wired wrong. I checked my wiring and it was done right

So he sent me another ecu and it turns out the replacement he sent was a ka24de ecu


So is JWT more reliable?

[codyace]

If you have used enthalpy before where do you recommend getting one or just JWT instead?

I got a Enthalpy tune once not from Scott but from some guy off the Enthalpy site and my car ran really badly like it had no maf. So I talked to him about it (can't remeber his name) and he said my maf was wired wrong. I checked my wiring and it was done right

So he sent me another ecu and it turns out the replacement he sent was a ka24de ecu


So is JWT more reliable?


The thing about the JWT and Enthalpy rom tunes, is that they require the car to be in top shape, wired correctly, and in good order, in order to work.

If your car is running poorly I'd check to make sure the MAF itself is good. Then I'd contact them again (Martin, who now works with Z Fever, in Tampa) to see if a chip in itself was bad. I'm sure he'll replace them so long as you send your current ones.


Either setup will work with your car without worry. JWT and Enthalpy both make a great product that has proven for years to work perfectly.

[Loomis112]

Is there any true way to test the MAF?

[fliprayzin240sx]

Wait, why the hell are you changing the MAF settings WHEN THE CAR IS RUNNING?!?! Make the damn changes with the car not running...

[Loomis112]

Wait, why the hell are you changing the MAF settings WHEN THE CAR IS RUNNING?!?! Make the damn changes with the car not running...

No, I'm not making them when the car is running I'm saying when i switch the car off and change the in to 2 then start it back up it doesn't run right

[codyace]

What if you remove the AFC, and remove the Z32 maf, put the stock ECU back in and stock maf back in, does the car drive ok?

[Loomis112]

What if you remove the AFC, and remove the Z32 maf, put the stock ECU back in and stock maf back in, does the car drive ok?

Funny you say that cause my plan is actually to put the stock maf and injevtors back in and rip that afc out I decided after I took a ride in my friends stock Sr so well see how that goes

[Kingtal0n]

Funny you say that cause my plan is actually to put the stock maf and injevtors back in and rip that afc out I decided after I took a ride in my friends stock Sr so well see how that goes

If you have a stock turbo, there is no need for any of that anyways. stock is stock.

[Loomis112]

If you have a stock turbo, there is no need for any of that anyways. stock is stock.
There is a Gt2871 on right now