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Archive for category: Uncategorized

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91-93 US VR4/91-98GTO Version 2 Plug and Play Flash Ecu Installation

19 May 2014 / 0 Comments / in '91 - '93 Modifications, Uncategorized/by Jesters Deadd

91-93 US VR4/91-98GTO Version 2 Plug and Play Flash Ecu Installation

Wideband Oxygen Sensor WBO2

25 Jun 2013 / 1 Comment / in '91 - '93 Modifications, '94 - '97 Modifications, '98-'99 Modifications, Uncategorized, Wiring/by Jesters Deadd

Any wideband O2 with a 0-5v output can be used.

The Innovate LC1 and AEM Uego are great examples of WBO2 sensors that work great with the Flash Ecus.

After following installation instructions for your choice sensor you will need to wire the 0-5V output (see your WBO2 sensor manual for wire color) into the ECU. 

Wire the 0-5V into pin 93 for a 98-99 Flash Ecu, pin 55 for a 91-93 Flash Ecu or pin 77 for a 94-97 Flash Ecu.

Then just finish your sensor scaling in the rom and you are set up. http://chromedecu.org/?page_id=895

See plug pinouts below. The diagrams show if you are looking directly at the ecu plug, or the back vehicle side plugs.

 98-99 turbo plug PNP plug

Recent How To’s

  • 91-93 US VR4/91-98GTO Version 2 Plug and Play Flash Ecu Installation
  • 91-93 US VR4/91-98GTO/91-95 SL Fed Spec Version 3 Plug and Play Flash Ecu Installation
  • Wideband Oxygen Sensor WBO2
  • No Lift to Shift (NLTS)
  • 94-97 US VR4 Plug and Play Flash Ecu Installation

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