Author Topic: TPS issues  (Read 884 times)

Offline Rx7man

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on: October 18, 2016, 09:50:14 PM
Got an annoying little TPS issue.. When I first start the truck, the TPS idle point is about an ADC value of 170, as I run the truck, the idle ADC value drops down to 150.. Problem with this is it messes up my maps.. If I manually set it to 170, as it warms up it stays in idle mode waaay too long, if I set it to 150, it prevents jake mode from engaging

Wondering if anyone else (who's implemented TPS) has closely watched the TPS readings as it warms up and if it's just something funky happening in mine.. I'd buy a new one but I'd like to know if that's the real problem first

'94 dually,  67/67 HE351VE, NV5600, ~600hp
'93 ECLB 47RH, new toy truck, H pump project, 1000hp goal, 300K miles
93 XCLB auto, bone stock, 350K miles
93 XCLB 5spd, bone stock, 100K miles


Offline hakcenter

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Reply #1 on: October 19, 2016, 09:40:16 PM
Cold things conduct better than warm things ?

AMP 2 Corinthians 8:21
For we take thought beforehand and aim to be honest and absolutely above suspicion, not only in the sight of the Lord but also in the sight of men.



Offline Rx7man

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Reply #2 on: October 19, 2016, 10:39:10 PM
Yeah, but that's the reason that it's a variable resistor with a hot and ground.. besides there's only a minute amount of current going through it... I dunno.. If it keeps giving me grief I may add a microswitch to it and only use that for a lot of the logic.. I'd much rather not though

'94 dually,  67/67 HE351VE, NV5600, ~600hp
'93 ECLB 47RH, new toy truck, H pump project, 1000hp goal, 300K miles
93 XCLB auto, bone stock, 350K miles
93 XCLB 5spd, bone stock, 100K miles


Offline hakcenter

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Reply #3 on: October 20, 2016, 11:17:32 AM
TPS < && RPM < = idle

I'm using a slow moving average rpm with a faster computed rpm then average them together to get something that is stable, and slow, but fast enough to know when I'm idling.

AMP 2 Corinthians 8:21
For we take thought beforehand and aim to be honest and absolutely above suspicion, not only in the sight of the Lord but also in the sight of men.



Offline Rx7man

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Reply #4 on: October 21, 2016, 01:44:37 AM
Yeah, I think I'll do something like that

'94 dually,  67/67 HE351VE, NV5600, ~600hp
'93 ECLB 47RH, new toy truck, H pump project, 1000hp goal, 300K miles
93 XCLB auto, bone stock, 350K miles
93 XCLB 5spd, bone stock, 100K miles