Ok so I have a aem wbo2 in place of my stock o2. In saying that I have no o2 sensor hooked up to ecu. Ecu is p28 chipped with crome. I wanna know if I have to get another bung to put my stock o2 sensor on or can I run the white output wire to wire harness/ecu.

 

Manual by VegasInvasion. Check out page 38.
http://www.gravityimports.com/CROME_v1.6.x_Manual.pdf

 

^ thank you sir
However, the AEM WB "gauge" only has a 0-5v wideband output, which is only compatible with the Crome Gold rom and needs to be correctly programmed (see manual).
Otherwise you do need a NBO2 or a wideband controller that has a simulated NBO2 output if you wish to run closed loop. On the other hand, you shouldn't need closed loop if it's tuned well enough...

 

I didn't know you cant even use a wideband without the gold version. Boo

 

You are wrong if it is a 30-4100 which is the most common one due to its price point. See page number 10:

https://www.google.com/url?sa=t&sour...-T5gn3VvauT1WQ

I knew because I own one.

 

Yes you can change the output of the gauge to other settings so it doesn't use the 0-5v output calibration.

 

Yes but you still cant tune off the 1v output can you?

You have this awful, non linear resolution.

 

Correct however it is giving you a linear output. However being the spread is only 1 volt your resolution is going to be pretty small.

 

You consider this linear?

 

I don't see what the fuss is about. You don't HAVE TO have wideband datalogged to tune a car. Although, even though I haven't had CROME Pro in a while (since I have Dealer and just use Gold) I could have sworn you could select from a few widebands you just couldn't edit your own tables.

 

Sorry I was looking at the wrong output graph, but that isn't the output either. You can download the instructions in the link above that has the specific voltage to AFR output.

 

I have not done tuning without an ability to log afr since 2003. Logging AFR in a plot takes all the wasted time and basically guessing out of the equation.

upgrade to a nicer software/hardware and you wont have this problem.

 

If you have a load-bearing dyno and about 3 hours you can get the fuel maps really close even without datalogging. I recently had a Nissan with a faulty OBD port on an SAFC that I had to tune freehand... Sucked.

Muckman, you can tune using a wideband input with P30, but you can't program a closed loop wideband scale without the gold rom.