 Throttle Position Sensor (TPS), Dave, Brad and Cap'n and other FI experts |
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| mtndawg |
 Dec 23 2009, 11:24 PM
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Member  Group: Members Posts: 414 Joined: 26-January 09 From: Granite Bay, Ca Member No.: 9,985 Region Association: None 
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Can someone give me a good description of what the TPS signals to the ECU? My car was bucking when accelerating and when I would try to hold steady. I took the TPS out and cleaned it with electrical cleaner. It looks fairly worn and I get 18 clicks instead of 20. I think I'm supposed to hear 20. Now that it's clean (and adjusted) the car is running MUCH better, but I still hear only 18 clicks when I press the gas with the key on (and the engine off).
It's not bucking now, but now my idle is low at start when the engine is cold, then it's high (1500) when the engine is warm. I need to make some other adjustments, take a look at the trigger points and clean the screen at the bottom of the fuel tank too. ...so I want to know how the board and wipers signal the ECU? |
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| etcmss |
Dec 24 2009, 06:07 AM
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etcmss Group: Members Posts: 183 Joined: 20-April 06 From: Lancaster, Ky Member No.: 5,899 Region Association: Upper MidWest |
setting the TPS is already addressed. But you said 18 to 20 clicks and I assume you are referring to the ECU adjustment.
It does sound like an ECU adjustment to get the idle back now after the TPS is restored. * I made a plug unit to set the TPS from an old FI throttle switch and set the TPS ohms while it was installed in the car. |
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Posts in this topic
mtndawg Throttle Position Sensor (TPS) Dec 23 2009, 11:24 PM
underthetire Did you calibrate it with the procedure once you t... Dec 23 2009, 11:33 PM Strudelwagon
Can someone give me a good description of what th... Dec 23 2009, 11:34 PM kg6dxn I can give you the generic version onf the TPS sig... Dec 23 2009, 11:44 PM
underthetire
I can give you the generic version onf the TPS si... Dec 23 2009, 11:50 PM mtndawg I've read pbanders site, which is super helpfu... Dec 24 2009, 12:55 AM ConeDodger The clicks are only the initial adjustment. You ne... Dec 24 2009, 09:04 AM mtndawg Here's the way I understand the different part... Dec 24 2009, 11:43 AM ClayPerrine The TPS in a D-Jet system is not a variable resist... Dec 24 2009, 11:53 AM r_towle If you only hear 18 clicks, you have not adjusted ... Dec 24 2009, 12:32 PM mtndawg Thanks for the comments! I think my TPS adjust... Dec 24 2009, 02:11 PM zymurgist Babydoll had a problem where the wire came loose f... Dec 24 2009, 02:20 PM davesprinkle As a couple of other posts have mentioned, the dje... Dec 24 2009, 04:25 PM Bleyseng Ok, the poor idle subject has been covered a billi... Dec 24 2009, 05:10 PM |
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