goldberg_52403

This is minor, but figured I would ask, maybe others have the same situation. Should the HUD speed match the speedometer speed? I would assume they are driven from the same source, although my HUD is 1-2 mph less than the speedo.

Thanks in advance for any input.

Burtnette

I was wondering this same thing. Mine is 1-2 mph faster than what my speedometer says and it's weird because it's at the right speed and my speedometer is off a tiny bit.

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CURRENT:
1997 Grand Prix GTP

Mods:
U-bend/Res Delete
3.4"
MSD 8.5mm
TR6s
ZZP 1.0 PCM
72mm TB w/ TB spacer
WizAired CAI
3" DP w/ Borla Pro XS mufflers
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OLD:
1995 Dodge Stealth

BNaylor

It is normal to have some very minor deviation between the HUD speed readout and the analog display at the IP. Both get there reference signals off the vehicle speed sensor (VSS) via the PCM module. Between the two I believe the HUD is more accurate which is the same for all digital versus analog gauges.

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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
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'02 Oldsmobile Alero GL2 - LA1 3400 V6
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'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged
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