Discussion:
error code 751 flashing

Flashing code 751.I need help with this code and what to check for?
  • Posted 10 Sep 2015 02:01
  • Modified 10 Sep 2015 02:02 by poster
  • By greasespoon
  • joined 30 Jul'09 - 154 messages
  • somerset, United Kingdom
Showing items 1 - 2 of 2 results.
So no air through either side right?
  • Posted 23 Feb 2022 09:46
  • By Jose_Felix
  • joined 11 Feb'22 - 1 message
  • California, United States
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.
  • Posted 5 Oct 2017 23:15
  • By sirthor1881
  • joined 15 Mar'11 - 24 messages
  • Georgia, United States

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Fact of the week
Bluetooth is named after the 10th-century Viking king, Harald Bluetooth, who united warring tribes in Denmark and Norway. In 1997, Jim Kardach from Intel gave the name to the technology because of its ability to unite different communication protocols, just as Harald united various tribes.