if we can modify the TPS and the boost sensor... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-11-2004, 07:21 PM   #1
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Default if we can modify the TPS and the boost sensor...

I wonder what else we can modify? MAF? IAT? O2?
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Old 08-11-2004, 08:04 PM   #2
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Those three sensors work together with the PCM. No tricking them. If you modify the IAT to read colder (which you can do) it'll richen up your AFR, but then the O2 sensor will catch it and correct.
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Old 08-11-2004, 08:12 PM   #3
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Hmm...ok, put a resistor in the IAT sensor, an O2 simulator then uhh...something for the MAF? But here'* the bigger question, why? The computer chooses the right amount of fuel for the amount of air going through. Making it run rich (or lean) won't do anything for performance. I'm sure there'* a way to do it, but you'd just be asking for trouble. JMO
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Old 08-11-2004, 08:45 PM   #4
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there is a sensor which fools the computer into thinking the afr is 14.7.. but yet.. wouldn't you want the computer to calculate the perfect afr? Yep.. you need those sensors so you get the best fuel economy and the best perforamce.. just make sure the sensors are funtioning properly.


-justin
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Old 08-11-2004, 10:13 PM   #5
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umm...14.7 is bad for a boosted car...11.1 is more like what we want at WOT.
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Old 08-11-2004, 10:32 PM   #6
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oh well.. yeah i've only seen ones that'll do 14.7...


-justin
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Old 08-12-2004, 06:30 PM   #7
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Use an AFC for the MAF to change rich/lean settings.

Relocate the IAT as far down the intake pipe to get colder readings.

Uhhh, thats about it.
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Old 08-13-2004, 12:54 AM   #8
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what i was thinking is...

we know the TPS and boost sensor are not perfectly set at the factory, and ther are tons of sensors going into the PCM. What are some other ones that might not be set/reading perfectl?

BRAINSTORM here people!
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Old 08-14-2004, 07:36 AM   #9
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since we're on the subject slight of TPS settings... what exactly is the Voltage range of the TPS on the LG3-3 HO? so I can check/set mine properly?

I looked in my good ole Vague Haynes manual and I can't find it if it is in there
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Old 08-14-2004, 09:26 AM   #10
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i'm pretty sure that site about adjusting your TPS is accurate. I'd find yours, and see if its similar [which it probably will be] and check it out.. I doubt it will be much different.. I bet your on your own with mounting.. but GM makes similar parts for all of their cars, no matter the make/model.


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