PCM swap help

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Apr 11, 2025 | 03:45 PM

JeffEvo

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3rd Gear

Joined: Oct 2024

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PCM swap help

98 Corvette, PCM LS1B, engine is running and all is fine in the air but the Speedo is out to lunch.

anyone have the Speedo calibration info for doing this swap?

Apr 12, 2025 | 02:44 AM

Tusc

Running Guns & Moonshine

Joined: Aug 2001

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From: CT

Have you checked the pinout lists to identify the speedo wire to test for signal?

Apr 12, 2025 | 08:34 AM

JeffEvo

Thread Starter

3rd Gear

Joined: Oct 2024

Posts: 3

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Quote:

Originally Posted by Tusc

Have you checked the pinout lists to identify the speedo wire to test for signal?

yes, I’ve got Speedo in the air on the hoist but the wheels are spinning much faster

its a calibration/calculation issue

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