---===The Official MAFT-Pro Thread===--- - Page 266 - 3000GT/Stealth International Message Center

Mike1992 · 02-26-2008, 09:30 PM

Since I don't really have the means to get these files uploaded at the moment. Would it be worth a try to remove both my 02 sensors and move my wideband up into one of the factory spots? This would ensure no leaks (or I would hope so) and I could enable pt tracking.

How well would that work?

EastWingedBeast · 02-26-2008, 11:53 PM

I take it all back!!

I scoped my signals last night with a sillyscope, and whilst noisey, they were within limits for a vehicle. lol

ALL IDLE PROBLEM SUFFERERS: It could be your fuel pressure regulator!!
The FSE "Power boost" FPR is a dogs dinner. Throw it in the bin!!

I changed over to an aftermarket adjustable of unknown manufacture.
(I took it to bits first to assure myself of the engineering).
The car is running much smoother, and can hit target AFR no problem.

It seems the FSE FPR was allowing the fuel pressure to pulse. Came out the back end of a dog.

EastWingedBeast · 02-28-2008, 12:00 AM

Here's a good one too.

I obviously didnt tighten the lock knut up properly on the FPR.

For my run home from work last night, I was pushing more like 3bar fuel pressure at idle (instead of 2.3-2.5bar). Crazy thing is, despite having to pull 20% fuel when cruising, the car ran brilliantly. Smooth as a smooth thing. My guess is, with a hot wired supra fuel pump (which seems to be pretty agricultural) and 550cc injectors, I think a higher base fuel pressure helped the regulator smooth things out, and helped the injectors make a good spray.

Anyone else tried running slightly higher fuel pressure?

TurboBob · 02-28-2008, 07:36 AM

Quote:

Originally Posted by Mike1992

Since I don't really have the means to get these files uploaded at the moment. Would it be worth a try to remove both my 02 sensors and move my wideband up into one of the factory spots? This would ensure no leaks (or I would hope so) and I could enable pt tracking.

How well would that work?

its worth a try, I want to do the same with mine. I am messing with other stuff at the moment and its too stinking cold do do any real work on the car right now......

I am smoothing out my base tune some just using my O2 Trim, I will post another file tomorrow.

Bob

msassoon · 03-02-2008, 02:06 AM

I have been asked a lot about version 5 and the user manual. Where are we with these?

Mike1992 · 03-02-2008, 08:59 AM

I got my car working fairly decent with no factory o2 sensors and pt tracking enabled using my lm-1 off the rear bank in the stock location. I've been watching the Correction Factor at idle and adjusted accordingly in my low tune section and I'm quite happy so far. My WOT tracking is a bit off however, it seems your tune needs to be fairly close for tracking to do its job. I'm gonna order a battery for my laptop today.

TurboBob · 03-02-2008, 10:52 AM

Quote:

Originally Posted by Mike1992

I got my car working fairly decent with no factory o2 sensors and pt tracking enabled using my lm-1 off the rear bank in the stock location. I've been watching the Correction Factor at idle and adjusted accordingly in my low tune section and I'm quite happy so far.

cool, generally I tune a little rich and let the tracking remove 5-10%

Quote:

Originally Posted by Mike1992

My WOT tracking is a bit off however, it seems your tune needs to be fairly close for tracking to do its job.

That is correct

Quote:

Originally Posted by Mike1992

I'm gonna order a battery for my laptop today.

Cool.

TurboBob · 03-02-2008, 10:55 AM

Quote:

Originally Posted by msassoon

I have been asked a lot about version 5 and the user manual. Where are we with these?

version 5 is basically done, I am finishing the testing this week.

the manual is a work in process as always.

Bob

Highboosted · 03-02-2008, 11:37 AM

Quote:

Originally Posted by TurboBob

version 5 is basically done, I am finishing the testing this week.

the manual is a work in process as always.

Bob

2-step?

TurboBob · 03-02-2008, 02:25 PM

I will put that at the top of the list after 5 is done. 5 is "content-frozen" so I can finish the regression testing.

(5.00 is really just 4.89 "done')

02-26-2008, 09:30 PM	#2651 (permalink)
Mike1992 DSM GURU Join Date: Apr 2007 Location: Springfield, Mo Drives: 91 Stealth RT/TT Trader Rating: (26)	Re: ---===The Official MAFT-Pro Thread===--- Since I don't really have the means to get these files uploaded at the moment. Would it be worth a try to remove both my 02 sensors and move my wideband up into one of the factory spots? This would ensure no leaks (or I would hope so) and I could enable pt tracking. How well would that work? __________________ 1992 Mitsubishi 3000GT VR-4 RIP 3/06 1990 Eagle Talon TSI AWD - 11.29@126 - SOLD 1991 Dodge Stealth RT/TT - Traded 1992 Eagle Talon TSI AWD - Where fast really is cheap

02-26-2008, 11:53 PM	#2652 (permalink)
EastWingedBeast Forum Member Join Date: Sep 2007 Drives: GTO Twin turbo Trader Rating: (0)	Re: ---===The Official MAFT-Pro Thread===--- I take it all back!! I scoped my signals last night with a sillyscope, and whilst noisey, they were within limits for a vehicle. lol ALL IDLE PROBLEM SUFFERERS: It could be your fuel pressure regulator!! The FSE "Power boost" FPR is a dogs dinner. Throw it in the bin!! I changed over to an aftermarket adjustable of unknown manufacture. (I took it to bits first to assure myself of the engineering). The car is running much smoother, and can hit target AFR no problem. It seems the FSE FPR was allowing the fuel pressure to pulse. Came out the back end of a dog.

02-28-2008, 12:00 AM	#2653 (permalink)
EastWingedBeast Forum Member Join Date: Sep 2007 Drives: GTO Twin turbo Trader Rating: (0)	Re: ---===The Official MAFT-Pro Thread===--- Here's a good one too. I obviously didnt tighten the lock knut up properly on the FPR. For my run home from work last night, I was pushing more like 3bar fuel pressure at idle (instead of 2.3-2.5bar). Crazy thing is, despite having to pull 20% fuel when cruising, the car ran brilliantly. Smooth as a smooth thing. My guess is, with a hot wired supra fuel pump (which seems to be pretty agricultural) and 550cc injectors, I think a higher base fuel pressure helped the regulator smooth things out, and helped the injectors make a good spray. Anyone else tried running slightly higher fuel pressure?

03-02-2008, 02:06 AM	#2655 (permalink)
msassoon Forum Member Join Date: May 2004 Location: Berkshire, England Drives: GTO SC ATX Trader Rating: (1)	Re: ---===The Official MAFT-Pro Thread===--- I have been asked a lot about version 5 and the user manual. Where are we with these? __________________ Black 1991 Ripp Modds Supercharged GTO DOHC MAFT Pro running speed density. Erebuni front bumper and side skirts Racetech Exhaust. EK2 shorties and 3SX Downpipe Custom transmission and oil cooler Import Precision VLS doors 18" Chrome VR4 wheels and Chassis Dynamics Lowering springs '99 Sail panels Lightened crank pulley EK2 fuel rail adapter. Underbonnet bling Too much custom stuff to mention

03-02-2008, 08:59 AM	#2656 (permalink)
Mike1992 DSM GURU Join Date: Apr 2007 Location: Springfield, Mo Drives: 91 Stealth RT/TT Trader Rating: (26)	Re: ---===The Official MAFT-Pro Thread===--- I got my car working fairly decent with no factory o2 sensors and pt tracking enabled using my lm-1 off the rear bank in the stock location. I've been watching the Correction Factor at idle and adjusted accordingly in my low tune section and I'm quite happy so far. My WOT tracking is a bit off however, it seems your tune needs to be fairly close for tracking to do its job. I'm gonna order a battery for my laptop today.

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03-02-2008, 02:25 PM	#2660 (permalink)
TurboBob Resident mad scientist Join Date: Jan 2003 Location: Near Detroit Drives: 86 GN 91 RT/TT Trader Rating: (17)	Re: ---===The Official MAFT-Pro Thread===--- I will put that at the top of the list after 5 is done. 5 is "content-frozen" so I can finish the regression testing. (5.00 is really just 4.89 "done') Last edited by TurboBob : 03-02-2008 at 02:35 PM.

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HOW TO INSTALL MAFTPRO ON A 91-99 3000GT VR4/91-96 STEALTH TT	This thread	Refback	04-13-2008 01:45 AM