Throttle position switch (TPS) repair, Contact surfaces are worn |
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Throttle position switch (TPS) repair, Contact surfaces are worn |
Cevan |
May 11 2009, 11:47 AM
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#1
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Senior Member Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 |
I've completed my 1.8 to 2.0 motor swap and have my car running really good, except the TPS is worn right around the partially open throttle position.
I've cleaned the surface and the contacts with 2000 grit sandpaper and then used Deoxit electrial contact cleaner. This helped as it only hesitates/bucks at the barely open throttle position and cleared up the issue at positions further along the path of travel. I imagine that it's worn right at the spot where you're most often running at. I searched but couldn't find any threads on repairing this. What I want to do is move the circuit board to the right or left, so that the contacts run on a fresh part of the board. Any ideas on how to separate the circuit board from the metal body and how best to reattach it? It looks like it may be soldered at the bottom right corner. |
ericread |
Feb 17 2010, 05:19 PM
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#2
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
I purchased and installed the new TPS, but I'l having some difficulty in adjustment. Using the following adjustment guide, I tried to perform as directed:
But I just can't seem to get the Ohm Meter to go to zero. Now, please take a look at my TPS: Should the wires "C" between post "A" and post "B" always short between these posts, or is there an offset where the wire only either contacts post "A" or post "B", but never both at the same time? In looking at my TPS, can you see anything else which my be causing my problems? I drive a 1974 2.0L stock FI engine. My thanks in advance. Eric Read |
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