OEM wideband or aftermarket must?

shadow85

So reading some threads, and OK it has been said the OEM wideband sensor is not as accurate as an aftermarket one nor as fast especially for FI applications.

Just wondering has anyone here actually compared the 2 on a boosted Z or is it just speculation atm?

Alstann

I run an AEM wideband, and I also read off the two stock wideband sensors via ECUtek. The stock widebands read extremely fast and accurate, and are more than sufficient for FI applications. The difference between the AEM and OEM widebands are also negligible when I compared them.

That being said, I do prefer having the AEM wideband on the pillar and in my face so I can see how the car is performing at any point in time. The ECUtek readout on my phone is not easy to see as my phone mount is kinda low.

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shadow85

Excellent thank you.

Reason I wanted to know this is because instead of spending $300 AU on a X-series AEM wideband, I was going to add $200 and just get the Ecutek Connect BT kit and display the wideband gauges on my phone using it. That way I can display many things at once on my tablet/phone in the car instead of just one thing via a gauge.

shadow85

Just asked Z1 this aswell, and they also said the OEM wideband is accurate under boosted Zs but its still a good idea to have a visible gauge on tap.

ihiryu

Factory o2's don't read past 11.15 (which you shouldn't be here anyway). I use the factory widebands on my TTz, but I've been debating about getting an aftermarket gauge for hte piece of mind.

turtle64b

I find myself this low under WOT sometimes. My Prosport Wideband bottoms out at 10 with it's own O2 sensor.

FYI at 11.15 AFR seen by the ECU, O2 sensor voltage is 0V haha

shadow85

So I bought the Kiwi3 OBD2 adaptor, and plan on using Torque Pro to monitor the AFR. I hope it is accurate enough this way.

BTW I am only cheaping out on the wideband because I ordered a new set of gauges and other parts from a local business and they never got delivered to me and they said there is nothing they can do about it because it wasn't insured, (my bad).

So in order not to hang myself because of spending $700 again on the same parts I decided to cheap it out with Kiwi3 and Torque or dash command to monitor the AFR.

shadow85

What do you use to display the factory Wideband reading?
A gauge, or an OBD2 app?

Spooler

A gauge is not needed in my opinion. Your not going to be able to watch it and the road on a WOT run.

7ssain

I have both the EcuTek BT Connect and a stand-alone AEM gauge.

I have placed my gague on top of my cluster “it was temporary location” at first but i loved how its stright on my line of sight without obstructing ny view on the road so i kept it there.

Even though i have a proclip mount for my phone i still find it hard to look at the screen while on WOT.. just two days ago i was having fun with the car and doing a WOT I glanced at the AFR and saw it reading 15! so i let of immediately .. so having the gauge at a quick glace could save ur engine. My 2c

shadow85

Why did it lean out on your WOT pull?

DId you find the issue and fix it?

7ssain

Not yet .. it happened on my why back home and I haven’t driven the car again yet. I suspect a fueling issue but i need to take it to the shop to find out.

shadow85

Im in exact same boat. I am going back to shop tommorow arvo.

Hopefully its fixed soon. Can't wait to get the tuning all finished up

Tusharp83

Aem obdii gauge is fast. I have both innovate and arm obdii reader gauge. Aem is faster than innovate and it cost between $100-$150

shadow85

If reading the wideband from the OBDII then might aswell get an ODB2 BT adaptor and use Torque Pro or DashCommand or Kiwi3, yeah? Because that way you will get alot more paramters to monitor.