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jbell959 jbell959 is online now
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Join Date: Oct 2004
Location: S California
Posts: 8,003
Quote:
Originally Posted by silverlock View Post
Pull the gauge and check the ground wires. Bad ground = pegs at max RPM.

Do any work in the frunk or adjacent gauges that might have pulled the ground out?
Bad ground will not peg the tach. If it pegs when power is applied, a component on the driver board has failed.
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1970 911E Sportomatic Albert Blue
1971 911T Sunroof Coupe w/ Twin Plug 2.5 MFI
1973 911E Glacier Blue
1973 911E RSR Tribute Viper Green w/ 3.5 Twin Plug MFI
Old 06-27-2025, 08:45 AM
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