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MAF Translator Gen II install on a 89 Conquest TSI

MAF Translator Gen II

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#21 ptracy26

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Posted 06 February 2013 - 09:52 AM

You have 3 points to work with. It might help to have the mid point set richer than highest throttle point. You will likely find as the car come into boost you need to pull fuel. That is to say  negative correction of about 15%-20% from your cruise setting. (startquestrescue advice, didn't qoute correctly haha)


Understood, though I will add under slow/moderate pedal pressure (moving towards WOT) going into boost, with my car it starts to lean out (1-3lbs of boost ~) 15-16 range, then immediately corrects itself richening up to 11.7, then til full pedal pressure/full boost, 10.5<. Again I have all my low/mid/high points still at zero, except for the lowest rpms to assist in a "Tip In".  Hence, now I can start tuning,

Edited by ptracy26, 06 February 2013 - 11:13 AM.






#22 ptracy26

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Posted 06 February 2013 - 10:33 AM

View PostStarquestRescue, on 05 February 2013 - 07:47 PM, said:

You may find some thing use full in here.  http://www.starquest...ic=106923&st=40

Read that one about 10x's in the last 3 months, ok i'm slow, and even tried his latest setup. The car was terrible to drive, so I had to immediately reset the GEN2 and start over with the MAF/RPM setup, with a mainscale at -25%, that showed some signs of improvement for me. But ultimately after a week or two, it seems I was always chasing my tail to get the mixture correct throughout the low/mid/high

It just maybe the issue with Double Compensation since I still have hooked up to the ECU the BAR/IAT (see Dan's reply's on setup), maybe why I'm seeing better consistent readings using the TPS/RPM & Volt MAF setup throughout low/mid, just rich under WOT.

#23 StarquestRescue

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Posted 06 February 2013 - 08:14 PM

I would start with tps as the load source. It is scaled in #'s with 320= to 5 volts per the online instruction. Try and figure out what # = 1.5 volts and set that as your low tune point say 2.5 volt for mid and 3.5 for high.

Find a main scale setting that the car idles at. The set your low load correction at each rpm point up to about 3200-3500 so the car cruises around 14.7 Cruze is level road steady throttle position. Above that rpm set it the same or a little richer than the 3200-3500 point, richer at higher rpm. You will not really run at the higher rpm at 1.5 volts of tps any way.

Now work with the mid at high load settings. Forget part throttle boost for now, that's the hardest to get right. Pick a modest boost say 15-16 psi.  If you start to make boost at say 2500 rpm and reach full 15-16 psi of boost at say 3500 you will have to pull fuel in this area. Example 0 correction at 2500 on the mid and high load point -7 at 3000 rpm and -15 at 3500 rpm. All ways start pig rich and lean it down slowly. Set your mid and high settings the same at each rpm point at this time. After you get it to run good at wot and get a better understanding of the unit, Later you can try and adjust the mid to improve part throttle.

It will likely run richer the more boost you run. (up until the point it runs out of injector and leans out, or fuel cuts.) That is why you need to run a consistent boost pressure and also why part throttle boost is hard to get right. Example If you tune the car to run wot at 15 psi, it may run richer at 18 and leaner at 10. At part throttle you may not be at full boost so it may run lean.

At this point i wound wire up the unit the way the manufacture intended. Using the set point voltages for baro and air temp. You can always try the baro and temp senders much later. And turn off all the advanced features like afr wide band tracking, Keep it simple till you get a handle on the basics. You will not achieve a the optimal tune in a week or 2.

Edited by StarquestRescue, 06 February 2013 - 08:18 PM.

2012 fall set up 20g 06  in the stock turbine houseing. 2g mas, Neo afc, Versafueler, 1050 / 2000 injectors on E85.  379hp 395 tq TBI Power

2012 spring set up. 18g06 in the stock turbine houseing.  2g mas, Neo afc, Versafueler, 1050 / 2000 injectors on E85.  Innovated data logging. 358 hp 393 tq. 12.71 @ 112
2011 set up. 18g05h,  2g mas, Neo afc, Versafueler, 1050 / 2000 injectors on E85.  Innovated data logging. 307 hp 360 tq  12.78 @ 112
2010 set up. 18g05h,  2G mas, Lsp 850 / 1400 injectors. Tuned with re flashed afc Neo version 1.104 and Innovated data logging.  297 hp 403 tq.


401 / 427 TBI   Dyno link-----------TBI Power http://www.sqperform....php?topic=33.0-----------Rear Gear link----------2010 Dyno link-------Feedback link

#24 ptracy26

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Posted 07 February 2013 - 02:17 PM

Thanks StarquestRescue, sound advice as I'll follow up if I'm moving in the right direction over time. ;)

#25 KrazedZ

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Posted 27 February 2013 - 06:41 PM

Alittle off subject here but how would this gen 2 translator work if the mafs was placed after the intercooler and say about 10"-12" before the tb?
'89 Conquest TSI SHP auto (SOLD)
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#26 Starquest87Jimmy

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Posted 13 June 2013 - 06:27 PM

do you have some good pictures of your wiring?

#27 Zoggy87

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Posted 05 September 2017 - 07:56 AM

Can the install pictures be reloaded?




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