---===The Official MAFT-Pro Thread===--- - Page 64 - 3000GT/Stealth International Message Center

Highboosted · 01-12-2006, 09:48 PM

Quote:

Originally Posted by KILURV8

Guess what, mine is doing the exact same thing right now. I just started it tonight after a bunch of upgrades and it started doing this too. I am not sure that I dont have vacuum leaks though. I just started it to make sure my upgrades didn't break anything and I am installing an AEM sometime soon (so my maftpro will be for sale soon)

When you do PM me, by then I should be looking into some fuel management....

Rustang Cobra · 01-13-2006, 09:03 AM

Quote:

Originally Posted by KILURV8

Guess what, mine is doing the exact same thing right now. I just started it tonight after a bunch of upgrades and it started doing this too. I am not sure that I dont have vacuum leaks though. I just started it to make sure my upgrades didn't break anything and I am installing an AEM sometime soon (so my maftpro will be for sale soon)

is your TPS wire soldered in?

KILURV8 · 01-13-2006, 09:30 AM

No but the voltage on the MAFTpro stayed at a constant .74.

RobBeck · 01-16-2006, 12:13 PM

Allright has anyone been able to use this thing in Speed Density Mode with a 2nd Gen, reliably and consistently? I will have what I think to be a good or decent tune, only to find hours or a day later its no good at all. I might give it a day or so more before I go back to afc.

As for trims, they are all over the board, drift from day to day or tune to tune.... maybe going back to the stock MAS will help me confirm that what I am seeing is or isnt normal....... but I cant get it to stay consistent for the life of me... and retuning an entirely different tune every day to get it out of the garage isnt what I had in mind. This afternoon I could not even lean it out enough to keep my trims from pegging rich, even -50 main and -30 low idle range.

Rob

EDIT: FWIW I have Evo 560s.

runner4053 · 01-16-2006, 02:11 PM

That's interesting, I've had problems with mine, too. It's a second gen. It idles fine now but it has to be at 13.0 AFR according to my LC1. Any other second gens in here?

DriveFast99 · 01-16-2006, 03:31 PM

Quote:

Originally Posted by RobBeck

Allright has anyone been able to use this thing in Speed Density Mode with a 2nd Gen, reliably and consistently? I will have what I think to be a good or decent tune, only to find hours or a day later its no good at all. I might give it a day or so more before I go back to afc.

As for trims, they are all over the board, drift from day to day or tune to tune.... maybe going back to the stock MAS will help me confirm that what I am seeing is or isnt normal....... but I cant get it to stay consistent for the life of me... and retuning an entirely different tune every day to get it out of the garage isnt what I had in mind. This afternoon I could not even lean it out enough to keep my trims from pegging rich, even -50 main and -30 low idle range.

Rob

EDIT: FWIW I have Evo 560s.

i got a 94 and i have a decent tune, and i really dont mess with it that much. but i have bigg injectors so its harder for me to get qa tune. i will be installing 580s soon and re tune so when i do that i will fill u all in, on what i have

RobBeck · 01-16-2006, 05:45 PM

Ok.. I just want to see if anyone can get it running well and keep it that way day in and day out. I know two who say its all good, but they are first gen. Rustang has Evo560s too, so I should be able to just drop in his bin. I would be very curious to see if it does anything for me but I dont think it will. I can get it running, and drive well, but the next day its all over again. Its like I did nothing for a hour or two the day before.

Rob

runner4053 · 01-16-2006, 06:33 PM

I don't think you can't just drop his bin right in. Your temperature sensor and pressure sensor locations may give very slightly different numbers due to their location/source to the maft-pro and would cause it to be off.

For example, I couldn't drop in the bin of a guy who had my same fuel system if his temp sensor was in the plenum above the exhaust and mine was in the y-pipe, nice and cool.

That's how I understand it. But throughout this thread, I've proved to have no idea of what i'm doing. ;-)

RobBeck · 01-16-2006, 06:39 PM

I dont think that would be an issue as we are using the exact same MAP location and the IAT is in the Y pipe now as well. I was thinking my problems were due to the IAT location when it was in the plenum because it was getting really freakin hot and obviously was mislocated because I made a mistake but now that it is in the Y pipe and the temps read alot more practical (40-80*) it still did not help anything. Therefore, since we have the same setup it should work, but I doubt it will from what I have seen. It maybe a 2nd gen issue, or it maybe something that I havent been able to find yet. I dont think its tuning, as when its pretty good after a few hours of screwing with it the next day its way off again deeming the prior day pointless.

Rob

Rustang Cobra · 01-16-2006, 07:44 PM

hey rob, ill lug the desktop downstairs later tonight after my gf goes home and ill get that bin off the maftpro for ya

Quote:

No but the voltage on the MAFTpro stayed at a constant .74.

mine was showing .59 constantly while watching it realtime, however it was only when i logged that i saw that it was occasionally dipping to 0 and causing me to stall rich

now its soldered in, i don't have that problem

01-13-2006, 09:30 AM	#633 (permalink)
KILURV8 Drives like Hell Join Date: Jul 2005 Location: Lake in the Hills,IL Drives: 1998 VR4 (20K Miles) Trader Rating: (27)	Re: ---===The Official MAFT-Pro Thread===--- No but the voltage on the MAFTpro stayed at a constant .74. __________________ Sold - 1998 Mitsubishi 3000GT VR4 (20K miles) - 400awhp on 93 (16psi) - 118 mph in 1/4 on pump - Sold

01-16-2006, 12:13 PM	#634 (permalink)
RobBeck POLYCHRONOPOULOS Join Date: May 2002 Location: St. Louis, MO Drives: On 1 Wheel Trader Rating: (222)	Re: ---===The Official MAFT-Pro Thread===--- Allright has anyone been able to use this thing in Speed Density Mode with a 2nd Gen, reliably and consistently? I will have what I think to be a good or decent tune, only to find hours or a day later its no good at all. I might give it a day or so more before I go back to afc. As for trims, they are all over the board, drift from day to day or tune to tune.... maybe going back to the stock MAS will help me confirm that what I am seeing is or isnt normal....... but I cant get it to stay consistent for the life of me... and retuning an entirely different tune every day to get it out of the garage isnt what I had in mind. This afternoon I could not even lean it out enough to keep my trims from pegging rich, even -50 main and -30 low idle range. Rob EDIT: FWIW I have Evo 560s.

01-16-2006, 02:11 PM	#635 (permalink)
runner4053 the car whisperer Join Date: May 2003 Location: Univ. of Illinois Drives: 96 RT/TT Trader Rating: (4)	Re: ---===The Official MAFT-Pro Thread===--- That's interesting, I've had problems with mine, too. It's a second gen. It idles fine now but it has to be at 13.0 AFR according to my LC1. Any other second gens in here? __________________ 96 RT/TT Currently missing an engine. major performance mods: DR650's, MAFT-PRO speed density, 720 cc, supra pump with hotwire, Fuellab FPR, ported heads, 1mm over intake and 1 mm over iconel exhaust valves. spec 3+ clutch, fidenza flywheel, 2 piece Al driveshaft, Supercar baffled oil pan, relocated battery, custom exhaust, reinforced bellhousing, 3sx poly motor mounts, intrax with GR-2, lots' of little things. Waiting to get put in---> DR1000s with .48AR and stage 2 blade

01-16-2006, 05:45 PM	#637 (permalink)
RobBeck POLYCHRONOPOULOS Join Date: May 2002 Location: St. Louis, MO Drives: On 1 Wheel Trader Rating: (222)	Re: ---===The Official MAFT-Pro Thread===--- Ok.. I just want to see if anyone can get it running well and keep it that way day in and day out. I know two who say its all good, but they are first gen. Rustang has Evo560s too, so I should be able to just drop in his bin. I would be very curious to see if it does anything for me but I dont think it will. I can get it running, and drive well, but the next day its all over again. Its like I did nothing for a hour or two the day before. Rob

01-16-2006, 06:33 PM	#638 (permalink)
runner4053 the car whisperer Join Date: May 2003 Location: Univ. of Illinois Drives: 96 RT/TT Trader Rating: (4)	Re: ---===The Official MAFT-Pro Thread===--- I don't think you can't just drop his bin right in. Your temperature sensor and pressure sensor locations may give very slightly different numbers due to their location/source to the maft-pro and would cause it to be off. For example, I couldn't drop in the bin of a guy who had my same fuel system if his temp sensor was in the plenum above the exhaust and mine was in the y-pipe, nice and cool. That's how I understand it. But throughout this thread, I've proved to have no idea of what i'm doing. ;-)

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01-16-2006, 06:39 PM	#639 (permalink)
RobBeck POLYCHRONOPOULOS Join Date: May 2002 Location: St. Louis, MO Drives: On 1 Wheel Trader Rating: (222)	Re: ---===The Official MAFT-Pro Thread===--- I dont think that would be an issue as we are using the exact same MAP location and the IAT is in the Y pipe now as well. I was thinking my problems were due to the IAT location when it was in the plenum because it was getting really freakin hot and obviously was mislocated because I made a mistake but now that it is in the Y pipe and the temps read alot more practical (40-80*) it still did not help anything. Therefore, since we have the same setup it should work, but I doubt it will from what I have seen. It maybe a 2nd gen issue, or it maybe something that I havent been able to find yet. I dont think its tuning, as when its pretty good after a few hours of screwing with it the next day its way off again deeming the prior day pointless. Rob