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TPS Adjustment for the 1.3 conversion

E28 technical advice asked and given! Troubleshooting, modifications and more.
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jimoreno
Posts: 1568
Joined: Aug 30, 2007 9:31 PM
Location: Land O Lakes, FL

TPS Adjustment for the 1.3 conversion

Post by jimoreno »

So I just did the throttle plate adjustment to 0.002" but when I search for adjusting the TPS, all of the adjustments are for small three wire one (the one my B34 used to have) but nothing that references the round plug one. I understand that this one is more of a variable resistor instead of the switches on the prior version but is there a specific position or resistance value to hit when in idle? I couldn't find a pinout for the connector so I don't know which pins to read either.
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jimoreno
Posts: 1568
Joined: Aug 30, 2007 9:31 PM
Location: Land O Lakes, FL

Re: TPS Adjustment for the 1.3 conversion

Post by jimoreno »

Never mind. Installed everything and with the engine running (originally around 1200 RPM) rotated it all the way counterclockwise until the RPM dropped to around 850/900. What was interesting was that when I tightened the bolts the RPM's went back up so I had to keep some force on it while I tightened the bolts (good thing they are hex key now!).
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