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stanps Stage 2
Joined: 22 Apr 2008 Posts: 58
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Posted: Sat Apr 26, 2008 10:20 pm Post subject: Throttle feels like on/off switch |
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Hey....can someone tell me the trick: during low rpm & low load (steady speed of 60 mph in 5th), the throttle feels like an on/off switch. How do you smooth out the no throttle to barely cracked open transition? Someone HAS to have a trick out there.
Thanks in advance,
S
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nefarious Site Owner

Joined: 19 Feb 2008 Posts: 148 Location: Everywhere In, FL
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stanps Stage 2
Joined: 22 Apr 2008 Posts: 58
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Posted: Sun Apr 27, 2008 1:52 pm Post subject: |
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| nefarious wrote: |
| do you have maps available for people to see? |
Sure! How would you like to see it? The bin file? Or a screen shot? ...sorry, I'm new here.
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nefarious Site Owner

Joined: 19 Feb 2008 Posts: 148 Location: Everywhere In, FL
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Posted: Mon Apr 28, 2008 1:23 pm Post subject: |
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| stanps wrote: |
| nefarious wrote: |
| do you have maps available for people to see? |
Sure! How would you like to see it? The bin file? Or a screen shot? ...sorry, I'm new here.  |
email me it bud, i'll take a look at it when i get home tonight
i havn't asked yet, but how long has your ride been doing this?
and is there anyway you can data log say 5 minutes or so bringing the car under load?
turbosaturn@live.com _________________ 97' Saturn SC2-Turbo
TEC2 + T3/T4 + FMIC
once again under construction
[img:7099059568]http://militarysignatures.com/signatures/member3983.png[/img:7099059568]
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stanps Stage 2
Joined: 22 Apr 2008 Posts: 58
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Posted: Mon Apr 28, 2008 6:06 pm Post subject: |
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| nefarious wrote: |
email me it bud, i'll take a look at it when i get home tonight
i havn't asked yet, but how long has your ride been doing this?
and is there anyway you can data log say 5 minutes or so bringing the car under load?
turbosaturn@live.com |
Okay, I'm not TRYING to be a pest here, but what am I emailing you? The bin file or a data log or a screen shot?
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SlowRider Newly Aquired
Joined: 30 May 2008 Posts: 3
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Posted: Sat May 31, 2008 12:39 am Post subject: |
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| stanps, did you ever get an answer to this question? I have a similar issue going on/off throttle for low load.
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stanps Stage 2
Joined: 22 Apr 2008 Posts: 58
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Posted: Sat May 31, 2008 1:42 am Post subject: |
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| SlowRider wrote: |
| stanps, did you ever get an answer to this question? I have a similar issue going on/off throttle for low load. |
Hey Slowrider,
Actually in my continued attempts at tuning and tweaking the car, it's gone. What I've done that might have affected this:
-- In Sensor Parameters
- the tps voltage at idle is actually .75, and I set the "TPS Fully Closed Throttle Voltage" to .77
-- In Deceleration Fuel Cut-Off
- I set DCCLL0 to 1800 rpm
- I set DCCL1 to 1100 rpm
-- Ignition Advance Table
- I set the timing during deceleration to about 4 degrees higher than it is during cruise, without going over the highest advance setting (in my case 25 degrees).
I'm not sure which of these (if any) made this go away, but it's gone.
HTH,
Stan
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SlowRider Newly Aquired
Joined: 30 May 2008 Posts: 3
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Posted: Sat May 31, 2008 2:24 pm Post subject: |
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Thanks for the update stanps. I understand how to adjust the first two items in your list.
For the IAT, how do you adjust the timing in decel? I don't remember seeing that tweak. Of course, if I get off my butt and actually look at it - I'd probably find it right away.
I'll try out your suggestions.
-Bruce
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stanps Stage 2
Joined: 22 Apr 2008 Posts: 58
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Posted: Sat May 31, 2008 10:32 pm Post subject: |
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| SlowRider wrote: |
| how do you adjust the timing in decel? |
Just set the 0 - 30 (ish) kPa higher in the upper rpm range. For example:
KPA
104 12 12 13 14 15 16 17 18 19 20 22
90 12 12 13 14 15 16 17 18 19 20 22
85 12 12 13 14 15 16 17 18 19 20 22
80 12 12 13 14 15 16 17 18 19 20 22
75 12 12 13 14 15 16 17 18 19 20 22
70 12 12 13 14 15 16 17 18 19 20 22
65 12 12 13 14 15 16 21 23 25 25 25
60 12 12 13 14 15 19 25 25 25 25 25
55 12 12 13 14 18 25 25 25 25 25 25
50 12 12 13 14 22 25 25 25 25 25 25
45 12 12 13 16 22 25 25 25 25 25 25
40 12 12 13 20 22 25 25 25 25 25 25
35 12 12 13 20 22 25 25 25 25 25 25
30 12 12 13 20 22 25 25 25 25 25 25
25 16 16 18 20 22 25 25 25 25 25 25
20 16 16 18 20 22 25 25 25 25 25 25
RPM 750 1000 1250 1500 1750 2000 2250 2500 3000 3500 4000
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