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Author Topic: Wideband O2 sensor kit and Boost controller.  (Read 1742 times)

Kiwimagic

  • Jr. Member
  • **
  • Posts: 63
    • 1990 SA SOHC, 1991 SA Verde DOHC, 1994 XR2 Turbo
Wideband O2 sensor kit and Boost controller.
« on: July 21, 2020, 02:04:14 AM »
Hi All
As I have now upgraded my Turbo (VJ11/VJ14) and ECU (Rocketchip) do I or should I be looking at up grading the narrow-band 02 sensor to a wide-band 02 sensor. Is my chipped ECU compatible with a wide-band 02 set up ?
The boost controller for the waste-gate is a simple "T" with a ball bearing and a spring. Is this good enough or should I purchase a waste-gate boost control kit.

cheers
Kiwimagic
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chrispoe

  • Sr. Member
  • ****
  • Posts: 435
    • 91 BP Capri GT
Re: Wideband O2 sensor kit and Boost controller.
« Reply #1 on: July 21, 2020, 08:46:33 AM »
The stock ecu will only work with narrow band O2 sensors.
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Kiwimagic

  • Jr. Member
  • **
  • Posts: 63
    • 1990 SA SOHC, 1991 SA Verde DOHC, 1994 XR2 Turbo
Re: Wideband O2 sensor kit and Boost controller.
« Reply #2 on: July 21, 2020, 09:09:08 PM »
Even a ECU with a Rocketchip fitted ??. Narrow-band only ??
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chrispoe

  • Sr. Member
  • ****
  • Posts: 435
    • 91 BP Capri GT
Re: Wideband O2 sensor kit and Boost controller.
« Reply #3 on: July 22, 2020, 03:41:25 AM »
A Rocketchip won't matter, the complex programming code and the circuits required to make a wide-band O2 work are not present in the stock ecu.
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Rocketman

  • Administrator
  • Old-Timer
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  • Posts: 5493
    • 91 BPT AWD Capri & 1991 XR2
    • http://www.werbatfik.com
Re: Wideband O2 sensor kit and Boost controller.
« Reply #4 on: July 23, 2020, 03:15:50 PM »
The ECU can only read narrowband sensors.
Wideband operates on a different voltage range and scale than narrowband sensors.

Certain wideband controllers have a Narrowband Emulator that you can feed to the stock ECU, derived from the wideband signal. I had one of these systems on the GTXR2.

Generally you run both the narrowband for the ECU and the wideband for your monitoring purposes. You may have to weld a bung into the exhaust for the extra sensor.

The ball-spring style boost controllers have worked perfectly for me on my turbo cars.
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1.8L Turbo All Wheel Drive Capri... the "GTXR2"