Renix TPS adjustment (1987 to 1990): what it helps and how to set it

Overview

The TPS on a Renix is adjustable with a multimeter, and getting the closed-throttle voltage right matters. If it's out of spec, the ECU doesn't know where idle is and fuel delivery suffers. It's a free adjustment that takes about 15 minutes. A lot of Renix owners say it's one of the single biggest improvements to how the rig drives.

What you need

• Basic hand tools
• Flashlight
• Optional: multimeter

Quick checks first

1. Quick check 1
2. Quick check 2
3. Quick check 3

Step-by-step

1. Step 1
2. Step 2
3. Step 3

If that did not fix it

• Next likely cause 1
• Next likely cause 2

Videos

• Testing and adjusting a Renix TPS (YouTube)
• Cleaning throttle body and adjusting TPS on a Renix (YouTube)

Source links

• Cruiser54: Renix TPS Testing and Adjusting
• Cruiser54: Mostly Renix Tips index

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