 TPS Testing |
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| cabrioartie |
 Mar 18 2026, 05:09 PM
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#1
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Newbie  Group: Members Posts: 22 Joined: 8-October 24 From: Las Vegas, NV Member No.: 28,400 Region Association: None 
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The car is a '74 2.0l, trying to fix all the items wrong after purchase.
Have found the following items bad and have replaced them: - MPS - AAR - Decel Valve - CHT - Spark plugs and wires I have a bogging/lack of power at about 3000 RPMs, I assumed it was the TPS. But, testing it with the 20 click method I get all 20 clicks consistently. My question is, is this a valid test to ensure the TPS is good? And if no, how else should I test it? And if yes, what else could be wrong to cause the problem? |
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| bdstone914 |
Mar 18 2026, 05:27 PM
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#2
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bdstone914 Group: Members Posts: 5,274 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(cabrioartie @ Mar 18 2026, 04:09 PM)  The car is a '74 2.0l, trying to fix all the items wrong after purchase. Have found the following items bad and have replaced them: - MPS - AAR - Decel Valve - CHT - Spark plugs and wires I have a bogging/lack of power at about 3000 RPMs, I assumed it was the TPS. But, testing it with the 20 click method I get all 20 clicks consistently. My question is, is this a valid test to ensure the TPS is good? And if no, how else should I test it? And if yes, what else could be wrong to cause the problem? Pull the cover and inspect the traces on the circuit board. They can get worm. Sometins the arms can be bent to get the points to contact solid traces. |
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| cabrioartie |
Mar 18 2026, 07:59 PM
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#3
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Newbie Group: Members Posts: 22 Joined: 8-October 24 From: Las Vegas, NV Member No.: 28,400 Region Association: None
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QUOTE(bdstone914 @ Mar 18 2026, 04:27 PM) QUOTE(cabrioartie @ Mar 18 2026, 04:09 PM) The car is a '74 2.0l, trying to fix all the items wrong after purchase. Have found the following items bad and have replaced them: - MPS - AAR - Decel Valve - CHT - Spark plugs and wires I have a bogging/lack of power at about 3000 RPMs, I assumed it was the TPS. But, testing it with the 20 click method I get all 20 clicks consistently. My question is, is this a valid test to ensure the TPS is good? And if no, how else should I test it? And if yes, what else could be wrong to cause the problem? Pull the cover and inspect the traces on the circuit board. They can get worm. Sometins the arms can be bent to get the points to contact solid traces. Can the TPS cover be removed while the TPS is in the car? What would be the procedure? |
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Posts in this topic
cabrioartie TPS Testing Mar 18 2026, 05:09 PM
emerygt350 The clicks are a good method. If the TPS is shot ... Mar 18 2026, 05:47 PM
cabrioartie
The clicks are a good method. If the TPS is shot... Mar 18 2026, 08:02 PM mgphoto
The car is a '74 2.0l, trying to fix all the ... Mar 18 2026, 07:00 PM cabrioartie
The car is a '74 2.0l, trying to fix all the... Mar 18 2026, 08:09 PM JeffBowlsby
I was waiting on the 123 install until the car w... Mar 18 2026, 10:31 PM |
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