Thread: 2000 5.3 throttle body info
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Old 11-23-2009, 01:31 PM
danielsatur danielsatur is offline
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Re: 2000 5.3 throttle body info
I wonder if those tubro-fins work?

Throttle bodies are used for Air, the signal from the MAF sensor is given to the PCU for the proper Air/fuel mix, the engine burns, the up-stream 02 sensor is a feedback signal for the PCU on how well it's being burned.

MAF sensor (Intake) > Combustion Engine > down stream O2 sensor (exhaust), the PCU is for the control.
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