1990-1996 Corvette Analog Gauge Calibration IC Adjustable for ZR-1 and LT-4

 

The analog calibration IC in your 90-96 instrument panel is a common source of problems. The factory part is a ceramic package which is easily damaged by heat and vibration. The results are the tachometer or other analog gauge reads significantly higher or lower than they should be. Another common symptom is that the tachometer pegs 8,000RPM, then dips past 0RPM.


The replacement IC is made with modern low-mass surface mount components to minimize the effects of vibration and maximize reliability. The factory uses a laser to fine-tune the calibration of each instrument panel. The IC is preconfigured for Corvettes with an 8,000 RPM tachometer, and includes a multi-turn potentiometer to allow for precise adjustment of the tachometer calibration. We use precision tolerance components for maximum accuracy, and Gold plated board and mounting pins for maximum life.

Note: This is for all 90-95 ZR-1 Corvettes and other 90-96 Corvettes with an 8,000 RPM Tachometer. A separate component is available for all other 6,000 RPM tachometer 90-96 Corvettes.

 

Signs your Analog Calibration IC may be defective

  • When the ignition is turned on, the tachometer pegs past 8,000RPM or dips below 0RPM.

  • When the ignition is on and the engine is not running, the tach should read 0RPM. If not, the analog calibration IC is likely defective.

  • The tachometer reads higher or lower than it should by more than a few hundred RPM.

  • Other analog gauges exhibit the same behavior

 

Contents

  • 1 - New Adjustable Analog Calibration IC (1990 - 1996) preconfigured for 8K tach

  • Completely Assembled using 0.1% Precision tolerance components

  • Supply of solder

  • Note: This is an auction for a replacement IC. The instrument panel and the factory IC pictured are not included in the sale.

  • Instructions and Troubleshooting Guide are provided online

  • Proudly made in the USA by people who care about your Corvette as much as you do!
  • If you have questions about the repairs, we offer free tech support staffed by an electrical engineer

 

See our YouTube videos on Corvette Digital Cluster repair - click here for 1984-1989 and click here for 1990-1996!

 

For more C4 Corvette Instrument Cluster Parts and repair services, see our other items for sale or contact us!

 

Repair Service Available

We also offer a complete repair service for 1984 - 1996 C4 Instrument Panels:

  • We offer a FREE no-obligation diagnosis of your instrument panel.
  • We won't perform any work and you won't incur any costs until you approve our repair quote.
  • Most common repairs cost $199 for parts and labor.
  • We offer a one year warranty on all parts we install and labor we perform!
  • We offer circuit-board-level repair services - something the "parts replacers" and exchange houses can't offer!
  • This is a repair service, which means you receive your instrument panel back!
  • Contact us for more information.