running rich whyy - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

FTMFW · 03-06-2018, 10:40 AM

redtop sr20
so I tuned my car with safc the ecu is also tuned for the turbo and the injectors
everythime they tune it its good then starts running pig rich again changed the sock on the fuel pump still same anyone know whats going on
running gt2871r 740cc injectors ecu tuned for gt2871r and the injectors got a z32 maf and using SAFC2 please helpppppp

di-devol · 03-06-2018, 11:18 AM

If you KNOW the ecu is tuned for the z32 maf and 740cc's, take off the safc and check afr's to start from there. If you're still running rich, then start checking for mechanical issues(Boost leaks, leaky injectors, etc).

eagleeyes221 · 03-06-2018, 11:23 AM

can you add anymore information as to whats going on?. you said you tuned the car yourself? was there anything you changed recently with the setup? was the car running good without the safc? without knowing anything thats going on id say start checking your sensor parameters and make sure that you are getting all of the proper readouts for them. i would also double and then triple check your tune. I had the same problem recently where my tune was off on my ls1. The motor was drowning itself in fuel because the tune thought it was getting ALOT more air than it really was.

apex128 · 03-06-2018, 11:49 AM

How rich are we talking? Do you have a wideband? Is the car stalling? Is this at idle only? We need more info if you want help.

Hoffman5982 · 03-06-2018, 01:37 PM

Throw the safc in the trash and get a real tuning solution.

***FaLKoN240*** · 03-06-2018, 03:14 PM

Your problem is compounded by the lack of information you presented.

What ecu do you have? You mention it's tuned for the injectors and the turbo, what about the MAF?

Why did you add an SAFC?

What settings are you using for the MAF in/out in the SAFC? For z32 I believe it's 2 in 6 out but that's on a KA24DE.

FTMFW · 03-08-2018, 11:44 PM

the safc im using to tune z32 maf
ecu is only tuned for turbo and injectors
problem im having is its breaking up under load aka boost
anytime full throttle just breaks up real bad
i had it dyno tuned by evolved tuning ran good a day and back to breaking up

FTMFW · 03-08-2018, 11:46 PM

ive checked timing changed and gapped plugs .028 changed injector O rings

apex128 · 03-09-2018, 06:18 AM

I think you might have a boost leak. Is your maf setup for blow through? That would explain the rich condition.

Sent from my 831C using Tapatalk

***FaLKoN240*** · 03-09-2018, 10:52 AM

What ECU is it? If you're building your set up for a budget, why not get an ECU that is set up for your MAF? Like an enthalpy, nistune or something?

FTMFW · 03-09-2018, 10:53 AM

Quote:

Originally Posted by FaLKoN240

What ECU is it? If you're building your set up for a budget, why not get an ECU that is set up for your MAF? Like an enthalpy, nistune or something?

Stock ecu tuned by jwt I believe I'll check again when I go to the car but it's tuned for the injectors and turbo

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FTMFW · 03-09-2018, 03:34 PM

so it runs perfect when i set to 4in 5out but a z32 maf should be 2 in any ideas?

***FaLKoN240*** · 03-09-2018, 04:20 PM

Quote:

Originally Posted by FTMFW

so it runs perfect when i set to 4in 5out but a z32 maf should be 2 in any ideas?

You're still not providing enough information.

What SR do you have? What ECU are you running?

FTMFW · 03-09-2018, 04:30 PM

Quote:

Originally Posted by FaLKoN240

You're still not providing enough information.

What SR do you have? What ECU are you running?

Redtop sr stock chipped ecu

Sent from my SM-G930T using Tapatalk

03-06-2018, 10:40 AM	#1
FTMFW Zilvia Junkie Join Date: Jan 2008 Location: California Posts: 307 Trader Rating: (1) Feedback Score: 1 reviews	running rich whyy redtop sr20 so I tuned my car with safc the ecu is also tuned for the turbo and the injectors everythime they tune it its good then starts running pig rich again changed the sock on the fuel pump still same anyone know whats going on running gt2871r 740cc injectors ecu tuned for gt2871r and the injectors got a z32 maf and using SAFC2 please helpppppp

03-06-2018, 11:18 AM	#2
di-devol Zilvia FREAK! Join Date: Jun 2010 Location: Woodinville Age: 39 Posts: 1,412 Trader Rating: (5) Feedback Score: 5 reviews	If you KNOW the ecu is tuned for the z32 maf and 740cc's, take off the safc and check afr's to start from there. If you're still running rich, then start checking for mechanical issues(Boost leaks, leaky injectors, etc). __________________

03-06-2018, 01:37 PM	#5
Hoffman5982 Nissanaholic! Join Date: Jan 2009 Location: Definitely NOT FL.... Age: 29 Posts: 2,491 Trader Rating: (25) Feedback Score: 25 reviews	Throw the safc in the trash and get a real tuning solution. __________________

03-06-2018, 03:14 PM	#6
*FaLKoN240* Super Moderator Join Date: Jun 2004 Location: SF Bay Area Posts: 16,761 Trader Rating: (73) Feedback Score: 73 reviews	Your problem is compounded by the lack of information you presented. What ecu do you have? You mention it's tuned for the injectors and the turbo, what about the MAF? Why did you add an SAFC? What settings are you using for the MAF in/out in the SAFC? For z32 I believe it's 2 in 6 out but that's on a KA24DE. __________________ Best way to do business with me? Make your best offer FIRST.

03-09-2018, 10:52 AM	#10
*FaLKoN240* Super Moderator Join Date: Jun 2004 Location: SF Bay Area Posts: 16,761 Trader Rating: (73) Feedback Score: 73 reviews	What ECU is it? If you're building your set up for a budget, why not get an ECU that is set up for your MAF? Like an enthalpy, nistune or something? __________________ Best way to do business with me? Make your best offer FIRST.

03-06-2018, 11:23 AM	#3
eagleeyes221 Leaky Injector Join Date: Jan 2013 Location: connecticut Age: 30 Posts: 124 Trader Rating: (1) Feedback Score: 1 reviews	can you add anymore information as to whats going on?. you said you tuned the car yourself? was there anything you changed recently with the setup? was the car running good without the safc? without knowing anything thats going on id say start checking your sensor parameters and make sure that you are getting all of the proper readouts for them. i would also double and then triple check your tune. I had the same problem recently where my tune was off on my ls1. The motor was drowning itself in fuel because the tune thought it was getting ALOT more air than it really was.

03-06-2018, 11:49 AM	#4
apex128 Zilvia Member Join Date: Jul 2016 Location: Chicago suburbs Posts: 173 Trader Rating: (0) Feedback Score: 0 reviews	How rich are we talking? Do you have a wideband? Is the car stalling? Is this at idle only? We need more info if you want help.

03-08-2018, 11:44 PM	#7
FTMFW Zilvia Junkie Join Date: Jan 2008 Location: California Posts: 307 Trader Rating: (1) Feedback Score: 1 reviews	the safc im using to tune z32 maf ecu is only tuned for turbo and injectors problem im having is its breaking up under load aka boost anytime full throttle just breaks up real bad i had it dyno tuned by evolved tuning ran good a day and back to breaking up

03-08-2018, 11:46 PM	#8
FTMFW Zilvia Junkie Join Date: Jan 2008 Location: California Posts: 307 Trader Rating: (1) Feedback Score: 1 reviews	ive checked timing changed and gapped plugs .028 changed injector O rings

03-09-2018, 06:18 AM	#9
apex128 Zilvia Member Join Date: Jul 2016 Location: Chicago suburbs Posts: 173 Trader Rating: (0) Feedback Score: 0 reviews	I think you might have a boost leak. Is your maf setup for blow through? That would explain the rich condition. Sent from my 831C using Tapatalk

03-09-2018, 03:34 PM	#12
FTMFW Zilvia Junkie Join Date: Jan 2008 Location: California Posts: 307 Trader Rating: (1) Feedback Score: 1 reviews	so it runs perfect when i set to 4in 5out but a z32 maf should be 2 in any ideas?

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