VSS Signal type & ALDL signal type
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
VSS Signal type & ALDL signal type
Does somebody have information about exactly what type of signal goes from the VSS to the ECM (say the 165 and 730 ECMs) as well as the signal type that is present at the ALDL? Long story short, I want to build a digital speedometer and I have no idea what type of signal I'm even dealing with here. Thanks.
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Joined: Jul 2000
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From: Tx
Car: 92 Z, 91 Formula, 04 CTS, 01 Tahoe
Engine: 355 forged 4 bolt, SuperRam, 58mm t
Transmission: T5, looking for t-56
I know it is an AC voltage signal that increases as the speed goes higher.I don't know about the signal at the ALDL though.
Thread Starter
TGO Supporter
iTrader: (2)
Joined: Jul 1999
Posts: 13,579
Likes: 9
From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
What increases, the voltage or the frequency of the a/c signal?
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