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Old 11-02-2002, 12:58 PM   #1
roybfr
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Member#: 14456
Join Date: Jan 2002
Chapter/Region: MWSOC
Location: WDM Iowa
Vehicle:
09 BMW 335i Sedan
69/72/01 Corvettes

Default Couple of UTEC impressions and questions

First of yes I RTFM so hopfully my questions are not answered in there if so I appoligize.

I installed it today (replaced Stage 4 unichip) and took it for a spin. I am still running the my HPBMC but one I get a little more comfertable with it I will probably start using the ABC and closed loop boost control (that is if Mark with let me have a copy of the newer version of the software that is in beta). I turned the boost down to about 16psi at first and did a couple of runs to make sure all was good. I them turned it back up to 17.5 and did a few more runs making sure that all was well. The car is easily more consistent with the UTEC, pulls harder throughout the curve. So overall I am pretty happy. Did not see any knock lights and data logs did not show any knock correction that I could see.

Well here are my question:

I noticed in the Dashboard that my TPS goes from 0% to 97%. Not that I am winning about that extra 3% but I am curious as to why this is. No I did look and the TPS calibration deal and noted my min and max from logger (iirc 29 - 200). The instructions just talk about noting the settings but not what to change based on the findings if anything. Maybe that calibrates it as I did this post my first run (bad Troy) and notice that in the logs my TPS topped out at 90.

I'll post a few of my logs for comments.

Troy
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Old 11-02-2002, 12:58 PM   #2
roybfr
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Join Date: Jan 2002
Chapter/Region: MWSOC
Location: WDM Iowa
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09 BMW 335i Sedan
69/72/01 Corvettes

Default

0954 000 -10.2 00 ECU. 14.7 00000
0955 000 -10.2 00 ECU. 14.7 00000
0949 000 -10.4 00 ECU. 14.7 00000
0996 000 -10.2 00 ECU. 14.8 00000
1299 010 -7.9 00 ECU. 13.1 00000
1875 011 -4.5 00 ECU. 14.5 00000
2174 011 -3.6 00 ECU. 16.2 00000
2206 011 -3.8 00 ECU. 14.9 00000
2158 011 -3.8 00 ECU. 14.7 00000
2087 011 -3.6 00 ECU. 14.5 00000
1992 011 -3.2 00 ECU. 14.5 00000
1956 011 -2.8 00 ECU. 14.6 00000
2008 011 -2.4 00 ECU. 14.4 00000
2041 011 -2.4 00 ECU. 14.2 00000
2154 011 -2.4 00 ECU. 14.6 00000
2316 011 -2.4 00 ECU. 14.2 00000
2424 012 -2.6 00 ECU. 14.5 00000
2463 011 -3.0 00 ECU. 14.5 00000
2460 011 -3.0 00 ECU. 14.5 00000
2628 012 -2.8 00 ECU. 14.4 00000
2782 012 -3.0 00 ECU. 14.8 00000
3005 013 -3.2 00 ECU. 14.8 00000
3129 013 -2.8 00 ECU. 14.5 00000
3363 014 -2.2 00 ECU. 14.1 00000
3699 072 -0.6 10 ECU. 15.0 00000
3916 097 +3.1 20 ECU. rich 00000
4380 097 +7.2 40 ECU. rich 00000
4844 095 +11.7 60 ECU. rich 00000
5446 095 +14.3 80 +23.0 rich 00000
5973 095 +13.1 70 +23.0 rich 00000
6422 095 +12.5 70 +25.0 rich 00000
6788 022 +12.9 00 ECU. rich 00000
6447 000 +2.1 00 ECU. 12.2 00000
6071 008 -9.1 00 ECU. 24.5 00000
6574 085 -4.0 10 ECU. rich 00000
5621 095 +7.0 40 ECU. rich 00000
5027 095 +15.1 80 +23.0 rich 00000
4528 096 +17.8 100 +21.0 rich 00000
4810 095 +15.5 80 +23.0 rich 00000
5096 095 +13.3 70 +23.0 rich 00000
5359 095 +13.9 80 +23.0 rich 00000
5393 095 +14.7 80 +23.0 rich 00000
5583 095 +14.5 80 +23.0 rich 00000
5868 096 +14.9 80 +23.0 rich 00000
5963 095 +13.7 70 +24.0 rich 00000
6150 096 +13.1 70 +24.0 rich 00000
6301 095 +13.5 70 +25.0 rich 00000
6422 095 +13.1 70 +25.0 rich 00000
6410 000 +8.0 00 ECU. rich 00000
6016 000 -3.6 00 ECU. 13.6 00000
5592 000 -10.4 00 ECU. lean 00000
5393 046 -7.9 00 ECU. 24.0 00000
5241 095 +0.6 10 ECU. rich 00000
5200 095 +10.0 60 ECU. rich 00000
5208 095 +15.7 80 +23.0 rich 00000
4734 095 +16.6 90 +23.0 rich 00000
5020 095 +14.3 80 +23.0 rich 00000
5042 095 +14.3 80 +23.0 rich 00000
5104 095 +14.1 80 +23.0 rich 00000
5324 095 +13.5 70 +23.0 rich 00000
5376 095 +13.7 70 +23.0 rich 00000
5402 095 +14.1 80 +23.0 rich 00000
5555 095 +14.9 80 +23.0 rich 00000
5602 095 +15.3 80 +23.0 rich 00000
5611 095 +15.7 80 +23.0 rich 00000
5757 095 +13.9 80 +23.0 rich 00000
5899 096 +13.3 70 +23.0 rich 00000
6060 095 +13.7 70 +23.0 rich 00000
6027 095 +13.9 80 +24.0 rich 00000
6195 095 +14.1 80 +24.0 rich 00000
6195 092 +14.3 80 +25.0 rich 00000
6349 000 +4.5 00 ECU. rich 00000
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Old 11-02-2002, 01:54 PM   #3
nmyeti
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Default Re: Couple of UTEC impressions and questions

Quote:
Originally posted by roybfr
Well here are my question:

I noticed in the Dashboard that my TPS goes from 0% to 97%. Not that I am winning about that extra 3% but I am curious as to why this is. No I did look and the TPS calibration deal and noted my min and max from logger (iirc 29 - 200). The instructions just talk about noting the settings but not what to change based on the findings if anything. Maybe that calibrates it as I did this post my first run (bad Troy) and notice that in the logs my TPS topped out at 90.

I'll post a few of my logs for comments.

Troy
Troy Page 17 of the UTEC userís manual

Quote:
SPECIAL CONSTANTS

EXTRA IMPORTANT: Use extreme caution when modifying these parameters as mistakes can result in major engine damage.

1. Boost Control Gain is used to adjust the ramp up rate of the closed loop boost controller.
2. Boost Control (Closed or Open) is used to select the type of boost control. Closed loop boost control uses totally different values to the open loop boost control and so a new boost map must be used. The values in the boost map do not represent psi, kPa or Bar.
3. MAP Calibration (Gradient) and (Intercept) are used to calibrate the MAP sensor.
4. MAP Minimum Value for Mapping is the lowest MAP value in psi for the MAP referenced columns in the fuel and timing maps (the 10% column).
5. MAP Maximum Value for Mapping is the highest MAP value in psi for the MAP referenced columns in the fuel and timing maps (the 100% column).
6. TPS Minimum Value for Mapping is used to calibrate the TPS sensor. Modify the value so that the TPS value on the Dashboard reads 0% when the throttle is not being touched.
7. TPS Maximum Value for Mapping is used to calibrate the TPS sensor. Modify the value so that the TPS value reads 100% when the throttle is fully depressed. You can do this using the Dashboard with the key in and in the ĎONí position but the car off. Fully depress the throttle and make modify the voltage value until it reads 100% at WOT.
8. TPS Threshold Point for Mapping sets the % of Throttle Position at which the UTEC switches over from using the 0% column in the Fuel and Timing Maps to the any of the 10% to 100% MAP based load reference columns. It is set at 60% since this is the approximate point at which the WRX ECU switches from Closed Loop fuel control to Open Loop fuel control.
Use that in conjunction with page 21

Quote:
Appendix A: TPS and MAP Calibration

TPS Calibration

1. To calibrate the TPS you need a UTEC and a PC.
2. Turn ON the ignition but do not start the car. With no pressure on the throttle pedal record the TPS value (T0) under logger #4.
3. With the throttle pedal fully depressed record the TPS value (T1) under logger #4.
4. Min TPS = T0 / 51
5. Max TPS = T1 / 51
Note that these numbers are rounded off to one decimal place.
Glad you like your UTEC.

-Nathan
www.turboxs.com
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Old 11-02-2002, 03:01 PM   #4
roybfr
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69/72/01 Corvettes

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So would you advise adjusting the TPS Maximum value so that it reaches 100% or should I just leave it at 97%. My guess is do you want the car to be at 97% at WOT or 100% at WOT. Well I want my car to go all the way to 11.

Sorry that I missed that I really did read the manual. I looked for that part when I was out driving (stopped at time of reading) but I must of looked over it in the Special Constants, saw TPS threshold guess I should have just looked below.

BTW what is the status of the remote swtich, that is my only semi dislike. but then I am not changing maps very often so it is not a big deal.

Have fun a SEMA in Vegas, I miss going.

Troy
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Old 11-02-2002, 04:24 PM   #5
nmyeti
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Default

Troy,
Ajdust the TPS so that it shows 100% when at WOT.


As for the remote switch, we should have that out shortly after sema.

-Nathan
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Old 11-02-2002, 04:38 PM   #6
paul99se
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Default

Troy,

The max TPS voltage only has resolution to .1v, so despite all the computation you could do to figure out what the voltage should be, I think you'll find that dropping the TPS max voltage .1v (3.9 vs. 4.0 on my car) you'll see 100% or 101% as your new max TPS reading.

Verify your settings by going to the Dashboard and seeing that it goes from 0 to 100 when you mash the throttle (engine off).

It's easier than the manual implies.

-Paul
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Old 11-02-2002, 08:39 PM   #7
roybfr
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Thanks, will give it a try tomorrow.

Troy
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Old 11-04-2002, 12:27 AM   #8
roybfr
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Dropped it .1 to 3.9 and I am now at 101%. I noticed a few other things. The car now starts much better when it is cold out, as soon as the CEL blinks twice one click of the key and she fires up. Now that it is cold out the unichip setup was starting to take a few cranks and it ran rought at first. This is a welcome change.

The other thing that I noticed is that it seems like boost is coming on a little quicker. This may just be the butt dyno fooling me as I am stilling the HPMBC.

Oh well I need to do some more data logging and see where I could make some improvements, my guess is that I will leave it alone as it is running pretty healthy right now.

Troy
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Old 11-11-2002, 06:22 AM   #9
TurboXS (Pete)
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Default

The "blinking" of the CEL when starting is due to the knock detection of the UTEC being triggered by the starter motor noise.

The latest software version 2.4 disables the knock detection when the engine is being started.

regards
Pete
(TurboXS)
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Old 11-11-2002, 10:15 AM   #10
roybfr
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I thought that when the key was turned to on position the cell blinked the number that the dial was turned to, i.e. I am at position 1 so it bliks once.

Troy
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Old 11-11-2002, 03:03 PM   #11
n2xlr8n
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Quote:
Originally posted by roybfr
I thought that when the key was turned to on position the cell blinked the number that the dial was turned to, i.e. I am at position 1 so it bliks once.

Troy
You are correct; I think Pete misunderstood you. UTEC's hell, isn't it? If I could just get it tweaked right for the temperature now, I'd be psyched.
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Old 11-11-2002, 03:51 PM   #12
z&cobb
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Quote:
Originally posted by n2xlr8n

You are correct; I think Pete misunderstood you. UTEC's hell, isn't it? If I could just get it tweaked right for the temperature now, I'd be psyched.
My CEL blinks twice on position 1, or am I seeing things?
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Old 11-11-2002, 07:39 PM   #13
TurboXS (Pete)
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Sorry too much jet lag!

If you have the UTEC switch set to 1 and you turn the key on, then the CEL should turn ON, then go OFF, then go ON permanently until the engine is started.

regards
Pete
(TurboXS)
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Old 11-11-2002, 07:50 PM   #14
z&cobb
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Quote:
Originally posted by TurboXS (Pete)
Sorry too much jet lag!

If you have the UTEC switch set to 1 and you turn the key on, then the CEL should turn ON, then go OFF, then go ON permanently until the engine is started.

regards
Pete
(TurboXS)
When the switch is set to 0, it will not blink at the inspector performing the OBD-2 emissions CEL and monitor tests, I hope.
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Old 11-11-2002, 08:01 PM   #15
TurboXS (Pete)
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In switch position 0 the CEL just comes ON and stays ON until the engine is started, just like the stock car.

regards
Pete
(TurboXS)

(what time is it? what country are we in?)
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