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

 

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

 

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.