How important is the vehicle speed sensor (VSS)????
#1
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How important is the vehicle speed sensor (VSS)????
Well, after I did my TPI swap, I forgot about the vehicle speed sensor (VSS), and I haven't done anything about it until today. I finally ordered one. I was just wondering if not having it hurt my performance. Will I notice any changes in performance, gas mileage, and/or driveability when I install it? Why exactly is it important? Will something like this put me into the 13s? I ran a 14.1 best. Any help would be greatly appreciated. Thanks.
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1984 Camaro Sport Coupe - Rebuilt 355 S/D TPI L98, Crane 2032 CompuCam, Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
Best 1/4 Mile Run:
14.137 @ 94.57 MPH
1992 1LE B4C Police Camaro RS - 305 TPI 5-Speed
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1984 Camaro Sport Coupe - Rebuilt 355 S/D TPI L98, Crane 2032 CompuCam, Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
Best 1/4 Mile Run:
14.137 @ 94.57 MPH
1992 1LE B4C Police Camaro RS - 305 TPI 5-Speed
#2
the VSS controls a few things...your torque converter lock-up (this is a good thing for any driving u do over 42 mph, slightly better fuel mileage)...it also controls the EGR fuctions (this is a part throttle setting)...i actually ran better ET's and MPH w/the VSS harness unhooked...hope this helps...theres probably a more "technical" answer that one of the 3rd gen veterans could give u
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91 Pontiac Firebird...305 TBI
black, t-tops, auto
K&N 14x3 open element flat base air cleaner, 3 inch high flow cat, 3 cat-back into a flowmaster 80 series, IAT Resistor, ultimate TBI mods, 160 stat Hypertech Thermomaster Chip, TC lock-up switch, SLP Torsen Posi w/Richmond 3.73's, removed rear seats, Spohn LCA relocation brackets...SOON TO COME...headers and y-pipe, Nitto Extreme Drag Radials, LT1 Cam, Edelbrock Performer manifold
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91 Pontiac Firebird...305 TBI
black, t-tops, auto
K&N 14x3 open element flat base air cleaner, 3 inch high flow cat, 3 cat-back into a flowmaster 80 series, IAT Resistor, ultimate TBI mods, 160 stat Hypertech Thermomaster Chip, TC lock-up switch, SLP Torsen Posi w/Richmond 3.73's, removed rear seats, Spohn LCA relocation brackets...SOON TO COME...headers and y-pipe, Nitto Extreme Drag Radials, LT1 Cam, Edelbrock Performer manifold
#3
Since you'll lose TCC lockup, you'll lose about 3mpg. It also controls the canister purge, so don't be surprised when you start smelling a strong gas smell after you shut off the car.
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