Throttle Body Adjustment
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Record Breaker
Joined: Oct 2007
Posts: 1,031
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From: Vermont
Throttle Body Adjustment
I'm not sure if my butterflys are opening up as much as they should. Does anyone have a DIY on making an adjustment? or maybe some first hand knowledge on what it should look like at full throttle? I'd like to dial this in.
Legend
Joined: Jul 2007
Posts: 7,843
Likes: 13
From: DFW, Texas
RE: Throttle Body Adjustment
The only adjustments I can think of would be:
1. the TV cable is not moving exactly with the throttle control cable. Plenty of talk on TV cable adjustment recently.
2. The Throttle Position Sensor isn't reading the pitch of the throttle plates as they open correctly, Check your TPS for proper Idle Voltage (~0.65V or so from factory. 0.75V gets slightly better throttle response) and that it is making a uniform voltage sweep from Idle to WOT (service manual says 0.29 to 4.49V.)
1. the TV cable is not moving exactly with the throttle control cable. Plenty of talk on TV cable adjustment recently.
2. The Throttle Position Sensor isn't reading the pitch of the throttle plates as they open correctly, Check your TPS for proper Idle Voltage (~0.65V or so from factory. 0.75V gets slightly better throttle response) and that it is making a uniform voltage sweep from Idle to WOT (service manual says 0.29 to 4.49V.)