EST Sensor?
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From: Naples, FL
Car: 1991 Firebird
Engine: 383 stroker
Transmission: T-56
EST Sensor?
Chilton says that I need to disconnect my EST sensor to adjust my timing. It's a 91 L03. Can anyone explain to me where it is and why it has to be disconnected, just for my own personal knowledge.
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
It's (usually) along the pass side firewall (tan wire/black stripe)
Unplugging it makes the ignition module ignore the EST signal on the white wire (keeps the ECM from having any timing control) so you can set your initial timing.
Unplugging it makes the ignition module ignore the EST signal on the white wire (keeps the ECM from having any timing control) so you can set your initial timing.
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HoosierinWA
Tech / General Engine
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Oct 7, 2015 10:15 AM
