MAFT-Pro Tuning Thread Unofficial and Uncensored

[turbobob]

Hey Bob,
Does the tune response tuning page settings have any bearing on the idle characteristics what so ever? It only gives input on a from "idle tip in", right?


Wayne

The Response page is supposed to be for tip-in, step-in,.... etc.

Those with choppy cams may get some MAP enrichment at idle which is not good. Plus if the car starts to idle poorly, the MAP enrichment can trigger and make it worse.... So there is a MAP TPSmin and MAP RPMmin to shut off the MAP enrichment at idle.

But, the answer to your question is "yes" (excellent question)

:drink1:

 

[malloynx]

i had the same timing problem as well. worked for a bit, then tried to dial it in and it went crazy..


we need to find a car in the detroit so bob can get his hands on it..

i'm going to make a fresh thread in reguards to a donor car

 

[Supra]

Leave the load source at "Use MAP" unless you have the patience to re-work the VE table. That option is for those odd cars with really radical cams that can't get a decent tune using the standard speed density algorithm.

Thanks for adding to the thread. I chatted with "3rdtime" last night and MAP/TPS load was the only thing that seemed possibly out of wack. When he said his car dropped to 14.7 @ idle, i thought we were headed in the right direction. I uploaded 4.65 to my 87T last night so that I could 'see' the new settings but I'm waiting on my turbo to come back so can't give any feedback yet. :icon_conf

In the case of "3rdtime"'s car, if he switches from MAP to TPS based load and his fuel mixture leaned out to the correct idle mix, is that an indicator of anything? Should we persue a TPS based load and a new VE table?

Again, wish my car was running so I could play too but it's not....:icon_conf

 

[SPD TRP]

Thanks for adding to the thread. I chatted with "3rdtime" last night and MAP/TPS load was the only thing that seemed possibly out of wack. When he said his car dropped to 14.7 @ idle, i thought we were headed in the right direction. I uploaded 4.65 to my 87T last night so that I could 'see' the new settings but I'm waiting on my turbo to come back so can't give any feedback yet. :icon_conf

In the case of "3rdtime"'s car, if he switches from MAP to TPS based load and his fuel mixture leaned out to the correct idle mix, is that an indicator of anything? Should we persue a TPS based load and a new VE table?

Again, wish my car was running so I could play too but it's not....:icon_conf

Hey Rich, I thought we were on to something too. I appreciate your help as well as everyone else's. I think we will get somewhere with this thing sooner than later now that we are getting some help and will be pursueing a mkIII to go to Bob's place for tuning.

Wayne

 

[supralover2000]

Bob,
I understand that you have a lot of work ahead of you with some of the new changes to the software, but at this point, with some of the new changes already achieved, I feel we need a new Quick Start Up sheet. The last one I have is for software version 4.4, and at this point we have a handfull of people attempting to run version 4.6X. We don't neccesarily need a whole new manual, but rather a supplement of sorts that clarifies and explains the new changes.
Note: I still believe that many people are just diving right in to this without having read enough nor understanding exactly what they are doing. Unfortunately there are probably many who's base (initial condition of their vehicle) might not be as solid as they believe and this leads to assumptions that the Maftpro is what causing the problem... Nonetheless, a new write up should help get everyone focused on addressing the proper settings rather just changing things "for the heck of it", without real knowledge of what that change will bring.

 

[Big Wang Bandit]

Not adding much... But Im going to see ChrisO's car tonight. Gonna see my First MaftPro in action!

 

[tookwik4u89]

Sweetness Hells, get some pics!

 

[chriso]

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhaaaaaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh:runaway: :runaway::rant2: :cry::wuteva::dunno: :madfawk: :madfawk: :wtf: :wtf: :wtf: :wtf: :wtf: wned::rant: ::dead horse:: ::dead horse::

Here is my idle now......

 

[chriso]

Not adding much... But Im going to see ChrisO's car tonight. Gonna see my First MaftPro in action!

Wanna buy it?

 

[turbobob]

Bob,
I understand that you have a lot of work ahead of you with some of the new changes to the software, but at this point, with some of the new changes already achieved, I feel we need a new Quick Start Up sheet. The last one I have is for software version 4.4, and at this point we have a handfull of people attempting to run version 4.6X. We don't neccesarily need a whole new manual, but rather a supplement of sorts that clarifies and explains the new changes.
Note: I still believe that many people are just diving right in to this without having read enough nor understanding exactly what they are doing. Unfortunately there are probably many who's base (initial condition of their vehicle) might not be as solid as they believe and this leads to assumptions that the Maftpro is what causing the problem... Nonetheless, a new write up should help get everyone focused on addressing the proper settings rather just changing things "for the heck of it", without real knowledge of what that change will bring.

I am completing the testing of 4.80 (basically 4.65 with some loose ends cleaned up) I will be updating the manual, and the tunerpro files.

On my car (Ok, a stealth) the idle is dead steady, no tip in issues, and it drives really nice.

So, like many speed density systems, there is more tuning required to get things right. I am still looking for a Michigan guy to work with. Dr Jones puked a turbo and is out of action until he can get it fixed.

I am out of town (hotel room) but hope to get to look at Chriso's stuff. It should not be that hard to stabilize the idle with some tuning. (your MAP sensor vacuum hose isn't sucking shut is it? I use fuel-line hose on mine
(or the really thick-walled vaccuum hose when I can find it.) Make sure you are not trying to use the PT tracking with the stock O2 sensor connected to the ECU.

Bob

 

[suprastanger507mgte]

Wanna buy it?

After reading that post above with whatever is burning in that fire, Kyle, I'd stay away from Chris lol.You may be next.

Chris, any progress on that MAFTPRO?

 

[Big Wang Bandit]

Its cool to look at. But its odd

 

[chriso]

After reading that post above with whatever is burning in that fire, Kyle, I'd stay away from Chris lol.You may be next.

Chris, any progress on that MAFTPRO?

:bigun2oes this answer your question?

 

[bigaaron]

We just got a customers car with a maft pro running today with a brand new 7m engine (literally a brand new shortblock). It started right up and ran ok. The ZT-2 shows the afr is between 14.3 and 15.1, but the afr on the maft pro is reading between 10.3 and 9.2! It's not at 10:1 or it would be smoking like a sob at idle and it is not. I selected the afr input as 5 for the ZT-2, but I tried everything from 1 through 9 and none of them read correctly. I honestly didn't have a chance to check the connections yet because it was late, but if the wiring checks out ok then what could cause this?

Also, I need to give him his car back using the best possible software version available NOW, what would that be? I don't like 4.40, and I don't like 4.67. It's not my car where I can baby it and watch it every second. What is the best version to use? We are also going to dyno tune it after about 500 miles with no/minimum boost, and at $160 an hour on a dyna pack I can't afford to loose his money by changing the software afterwards, considering the afr seems to vary widely after software upgrades, even with the same exact settings.

 

[chriso]

We just got a customers car with a maft pro running today with a brand new 7m engine (literally a brand new shortblock). It started right up and ran ok. The ZT-2 shows the afr is between 14.3 and 15.1, but the afr on the maft pro is reading between 10.3 and 9.2! It's not at 10:1 or it would be smoking like a sob at idle and it is not. I selected the afr input as 5 for the ZT-2, but I tried everything from 1 through 9 and none of them read correctly. I honestly didn't have a chance to check the connections yet because it was late, but if the wiring checks out ok then what could cause this?

Also, I need to give him his car back using the best possible software version available NOW, what would that be? I don't like 4.40, and I don't like 4.67. It's not my car where I can baby it and watch it every second. What is the best version to use? We are also going to dyno tune it after about 500 miles with no/minimum boost, and at $160 an hour on a dyna pack I can't afford to loose his money by changing the software afterwards, considering the afr seems to vary widely after software upgrades, even with the same exact settings.

Aaron, I hope your not asking me.....lolololololol

 

[bigaaron]

I usually just ask the questions and figure out what to do by reading my own problems. :biglaugh:

Hopefully Bob will chime in on this though.

 

[drjonez]

We just got a customers car with a maft pro running today with a brand new 7m engine (literally a brand new shortblock). It started right up and ran ok. The ZT-2 shows the afr is between 14.3 and 15.1, but the afr on the maft pro is reading between 10.3 and 9.2! It's not at 10:1 or it would be smoking like a sob at idle and it is not. I selected the afr input as 5 for the ZT-2, but I tried everything from 1 through 9 and none of them read correctly. I honestly didn't have a chance to check the connections yet because it was late, but if the wiring checks out ok then what could cause this?

your grounds are not common. connect the MAFT pro's purple wire to the ZT-2's ground.

Also, I need to give him his car back using the best possible software version available NOW, what would that be? I don't like 4.40, and I don't like 4.67. It's not my car where I can baby it and watch it every second. What is the best version to use? We are also going to dyno tune it after about 500 miles with no/minimum boost, and at $160 an hour on a dyna pack I can't afford to loose his money by changing the software afterwards, considering the afr seems to vary widely after software upgrades, even with the same exact settings.

any reasons you don't like any of those? 4.65 is your best bet in my book....

 

[CPT Furious]

I read about a lot of these problems, but I am running 4.65 right now and it idles and runs perfect! Haven't boosted past 10 psi yet, but the car is running strong. I like it...

 

[tookwik4u89]

Im in good shape with the 4.65 too.

 

[chriso]

I read about a lot of these problems, but I am running 4.65 right now and it idles and runs perfect! Haven't boosted past 10 psi yet, but the car is running strong. I like it...

Would you mind sharing your settings??