error code 751 flashing

  • Posted 10 Sep 2015 02:01 AM
  • • Modified 10 Sep 2015 02:02 AM by poster
Flashing code [url removed] need help with this code and what to check for?
Showing items 1 - 1 of 1 results.
  • Posted 5 Oct 2017 11:15 PM
Check for Vac. leaks, and the Fuel Trim Valves. You can Ohm them out should be 26+/- 2 ohms. If you can blow air through them then they are faulty and stuck open.

The fault code reads as Pre-Catalyst 02 sensor indicates extended lean operation. This is odd as the system is designed to run rich when something goes wrong with the fuel system.

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