I have a b18 in a ef and im going on boost very soon. I have one major question when i go on boost and I go get tuned do i need to have a aftermarket computer or will the tuner hook his up and is the tuned stored on my p75? Im going to get my p75 chipped but I just wanted to know if Im going to need like hondata or aem computer. Thanks sorry for the noob question but I always wondered this.

One more question: Can a aem wideband connect to a chipped p75 and read correctly?

 

You need to chip your P75 first and run a base map and drive, push or tow it to your tuner so he can tune it provided you go with hondata, crome or whatever. Just make sure he has the equipment to tune it with.
An AEM wideband can connect to your chipped ECU provided the settings are correct for voltage. Thats something your tuner is going to have to do.

 

Contact your tuner and ask them what is required to be done to your P75 ECU. They may have several different options that you can use. They may tune using Neptune, Crome, Hondata or eCtune. Neptune and Hondata require a different style of ECU modification than Crome or eCtune do.

So before you go buying hardware that you don't need yourself. Ask your tuner what they use for tuning.

An ECU can be set up in different ways to deal with wideband and narrow band O2 sensors. A P75 ECU may require modifications to read a 0-5v wideband signal through it. Now will an AEM narrow band signal work on a P75, yes. I am assuming by the questions that you are asking that you are not doing the ECU chipping yourself. Therefore these are also questions that should be asked of the person who will be chipping your ECU.

 

...why would you ask a forum instead of your tuner? try to use more specific titles on your threads.