How do you rev a drive by wire from engine compartment???
07-15-2010, 10:59 AM
#41
Not picking fights.... More like fighting fire with fire...
It was a legitimate question and it seems like drive by wire should have accommodated the need of people like me that need to diagnose a sound and people like ^*^*^ that want to show off that tight sound.
this is much better then this
It was a legitimate question and it seems like drive by wire should have accommodated the need of people like me that need to diagnose a sound and people like ^*^*^ that want to show off that tight sound.
this is much better then this
07-15-2010, 11:46 AM
#42
Senior Member
Join Date: May 2007
Location: Atlanta, GA
Posts: 652
The reason there are 2 of each sensor is so there is reference point since the ECU makes sure they're in check. If there is a small voltage spike, the tolerance goes away, and BAM, fail safe mode.
I learned this the hard way when I was wiring my wideband to read throttle position, kept going into fail safe...
I learned this the hard way when I was wiring my wideband to read throttle position, kept going into fail safe...
(I believe this is also called LIMP Mode.)
07-15-2010, 11:57 AM
#44
07-15-2010, 01:03 PM
#45
Senior Member
Join Date: May 2007
Location: Atlanta, GA
Posts: 652
07-15-2010, 01:09 PM
#46
It's a different mode than say what the 4th genners refer to as fail safe/limp mode. because they can still get to 2500 as fast as ever, just cant go beyond.
Example being, you can still drive home normally from work in a 55 MPH zone, normal acceleration etc, hang with traffic with the 4th gen. The 5.5 gen, hell no, you're getting passed by mopeds.
Example being, you can still drive home normally from work in a 55 MPH zone, normal acceleration etc, hang with traffic with the 4th gen. The 5.5 gen, hell no, you're getting passed by mopeds.
07-15-2010, 01:51 PM
#47
Senior Member
Join Date: May 2007
Location: Atlanta, GA
Posts: 652
It's a different mode than say what the 4th genners refer to as fail safe/limp mode. because they can still get to 2500 as fast as ever, just cant go beyond.
Example being, you can still drive home normally from work in a 55 MPH zone, normal acceleration etc, hang with traffic with the 4th gen. The 5.5 gen, hell no, you're getting passed by mopeds.
Example being, you can still drive home normally from work in a 55 MPH zone, normal acceleration etc, hang with traffic with the 4th gen. The 5.5 gen, hell no, you're getting passed by mopeds.
**Sorry for hijacking the thead, but I guess it is kind of related - in a 4th cousin twice removed kind of related.
07-17-2010, 01:49 AM
#49
My guess is the only real way to give the engine revs from under the hood would be to use a hacked OBD2 scan tool to send signal to the appropriate sensors. How this would be done I've got no idea but I'd say in theory it should work. I am not responsible if anyone chooses to try this.
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kjlouis
4th Generation Maxima (1995-1999)
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