scanmaster numbers

[fubar2.5]

Originally Posted by bmackinnon

I have no desire to get into a pi$$ing match here... , and I'm not trying to be a smart a$$, but suffice it to say, there ARE things that 'change' after 75% TPS. PE is primarily LV8 dependent, but TPS > 65% overides the LV8 based enrichment command. There's alot of little things that calculate based on TPS > 75%, using the actual %. Converter lock/unlock thresholds vs. maf vs. speed are one... here's a few lines of some of the code... Loc/Hex/MAF/TPS/Desc./MPH

3B6 E6 230 90% TCC unlock vs. TPS% 4th gear, lower limit 124 F44L1
3CA C0 192 75% TCC unlock vs. TPS% 3rd gear upper limit 124 F43U1
3CB 8 8 31% Unlock TCC if tps < this (high gear)
3CC 1A 26 10% if positive delta tps in 100msec >this remain unl for KPDLY
3CD 28 40 40 4th Gear TCC unlock MPH (KMNULCKH)
3CE 0 0 0 Dont lock if tps > this(highg,lck,cruz)

3DB FF 255 100% TCC unlock vs. TPS% 4th gear, upper limit 100 F44U1
3DC FF 255 100% TCC unlock vs. TPS% 4th gear, upper limit 108 F44U1
3DD FF 255 100% TCC unlock vs. TPS% 4th gear, upper limit 116 F44U1
3DE FF 255 100% TCC unlock vs. TPS% 4th gear, upper limit 124 F44U1

I believe 100% = 4.50 Volts. I'm no genius, nor Electrical/Computer Engineer (mechanical, thank you.. )... but I'm certain that 'some' things look for TPS > 75%. Thus, I feel that the TPS should be adjusted for it's maximum achievable range. I agree to disagree if we must, and I admit that my definition of 'fine', may not equal others.... Just my 02....

OK. but 100% is 5 volts and at any time the tps goes that high it will throw a code so.

[bmackinnon]

Originally Posted by fubar2.5

OK. but 100% is 5 volts and at any time the tps goes that high it will throw a code so.

Yea... TRUE 100% is whatever the ref. voltage is at the TPS, like you said, about 5 volts, so obviously, the tps signal volts can't get above the reference... and a code will throw above 5.0 V (which would indicate the ref > 5.0, which it usually is by a little bit) however... I 'believe' there is a line of code in there that defines 100% as 4.50 V for the ecu's purpose.... thus the recommendation that you should set the tps to max 'at least' 4.50 V and less than 5.0..

[86grandnat.]

ok, i will try to get my tps max a little higher. I looked around and I can't seem to find any of the 2 additives mentioned in this post. Do they even sell these items in Canada? I looked on home depot's web site and there was nothing.

[GNVYUS 1]

Couldn't find where you stated your base fuel pressure was set at??

If FTS sent you a 3" maf and you set the Translator to 3.5" to get it running right you haven't fixed any problems, you masked them.

If you have known exhaust header/turbo leaks you need to start here.

[86grandnat.]

never even checked the fuel pressure. I checked it a long time ago before I parked it and it was set to 42psi. I changed my translator over to the 3.5" because my sensor measures up to 3.5" in diameter. I think they sent me the wrong one from the start. There is no way that the sensor I got is 3".