3S-GTE JDM 3rd Gen Turbo Engine GT4 Gauges Cluster Turbo signal?

puretone · 04-07-2009, 12:55 PM

Hey guys, how is the turbo sensor signal handled and/or sent to the gauges cluster. I noticed it somehow gets an electronic signal from somewhere. Any clues how this is done? Directly from the MAP sensor?
Bonus question: what should that signal look like going into the gauges?

Spank you!

welsha · 04-09-2009, 08:55 AM

MAP sensor converts pressure into a voltage, i can't find the online image for the output but I think I have it at home.

welsha · 04-10-2009, 10:36 AM

MAP Sensor Output <- hope this helps

puretone · 04-14-2009, 03:46 AM

Quote:

Originally Posted by welsha

MAP Sensor Output <- hope this helps

hey thanks for that, though I found that a while ago as well when looking how the ST185/ST205 boost sensor worked.....assuming the SW20 would use the same sensor-ish....

So I guess it confirms that it goes to the ECU first and from there to the gauges cluster, again assuming the MR2 does that too.....the one thing I wonder though is how the gauge in the cluster handles the signal & more importantly what the signal looks like....if it's 0-5v like many Toyota gauge signal in/out-puts are....sine wave or square etc....

welsha · 04-14-2009, 02:41 PM

i'd doubt it would be a wave of any description. More likely a linear response to a linear input

04-07-2009, 12:55 PM	#1 (permalink)
puretone Beams Owners Group Join Date: Aug 2006 Location: Aruba, #1 BEAMS Engine on the Island Posts: 2,339 Thanks: 28 Thanked 57 Times in 56 Posts My Google Map iTrader Rating: (1/100% )	SW20/GT4 Gauges Cluster Turbo signal? Hey guys, how is the turbo sensor signal handled and/or sent to the gauges cluster. I noticed it somehow gets an electronic signal from somewhere. Any clues how this is done? Directly from the MAP sensor? Bonus question: what should that signal look like going into the gauges? Spank you! Last edited by puretone; 04-07-2009 at 04:06 PM..

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04-09-2009, 08:55 AM	#2 (permalink)
welsha No Skills Join Date: Feb 2006 Location: UK Posts: 58 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	MAP sensor converts pressure into a voltage, i can't find the online image for the output but I think I have it at home.

04-10-2009, 10:36 AM	#3 (permalink)
welsha No Skills Join Date: Feb 2006 Location: UK Posts: 58 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	MAP Sensor Output <- hope this helps

04-14-2009, 02:41 PM	#5 (permalink)
welsha No Skills Join Date: Feb 2006 Location: UK Posts: 58 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	i'd doubt it would be a wave of any description. More likely a linear response to a linear input