Map= Manifold Pressure


UTEC and Haltech are similar but very different systems. Haltech is far better but the price is higher.

Yes this ecu has been out for a long time, Its during the "crappy" years for Nissan ecu's they really dont have any aftermarket support. The 04+ ECU's are the good ones.



The Haltech unit has a built in map sensor.

 

Just read all 15 pages, glad I found this thread....just learned that my 10/02 (03) g35 5at sedan has they early ecu & up rev won't do anything for it.
Just installed Long tubes, ypipe, coupe mid pipe, cai & plenum spacer & catback system is ordered, &.now I can't tune it with a reflash....:-(

Can I just switch a 04 full engine harness & ecu into my 03? Has anyone tried it?

 

I don't think anybody has tried it - be the first!

 

I will check into this 2mrw... I wanna make sure that i won't have to change a crap load of sensors along with swapping the harness...I know I can locate a harness & ecu with no problems...

 

the 2004.5+ use wideband O2 sensors, so you want to make sure its a 2003-2004 that is the normal ECU

 

I ma try to find a late 03 or early 04 production date...

 

I ve located a ecu & harness, just gotta verify the dop, & make sure it's an auto rwd model...if its correct, I can pick it up next week & install next weekend...if it works, I ll be sending the ecu to uprev for a reflash...

 

Did anyone ever make a conversion harness from the early 03 ecu to the later 03, early 04 ecu harness?

 

I have a queation about a aftermarket sound system i put a alpine type x in my 03 g35 its hooked up to a audio battery but when i turn it up really loud and the bass really hits hard there is hard shift shock can this mess up my transmission the sub is 1000 watts rms

 

how did you end up in tuner /dyno section...go to the electronics section haha
welcome to driver

 

^+1
lmfao

 

LOL

upgrade your electrical circuits -

 

What other differences are there between 2003.0 sedans and the non misfit Gs?

Transmission? Engine? Anything else I should know about before boosting?

 

main thing is the ECU

 

http://www.nissanclub.com/forums/200...ml#post2949190

I found this regarding the MAF. It looks like we cant swap easily. Maybe an adapter harness can be made. I am posting this here both for future reference for myself and for you guys as well.