Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

very interesting ?

Thread Tools
 
Rate Thread
 
Old Aug 14, 2006 | 10:31 PM
  #1  
swoope's Avatar
Thread Starter
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,603
Likes: 36
From: orlando, fl
very interesting ?

i was out testing a new product tonight and stumbled accross this..

for those of you with a scanalyser or a can scan, try this and tell me what you get...

also note flash.
and year.

the auto does not get to play..

get to 72 mph.... shift into 4th gear. set cruise to 72mph in 4th.

what i want to know is

1) afr
2) cat temp.

beers
Reply
Old Aug 15, 2006 | 06:30 AM
  #2  
turbine's Avatar
4th Year runnin
 
Joined: Nov 2005
Posts: 134
Likes: 2
Good or Bad?
Reply
Old Aug 15, 2006 | 08:04 AM
  #3  
swoope's Avatar
Thread Starter
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,603
Likes: 36
From: orlando, fl
just not what i would consider normal.

beers
Reply
Old Aug 15, 2006 | 08:11 AM
  #4  
expo1's Avatar
He's as bad as Can
 
Joined: Feb 2004
Posts: 4,309
Likes: 3
From: Manchester, NJ
You have the most recent , (soon to be a recall) flash?
Reply
Old Aug 15, 2006 | 08:29 AM
  #5  
swoope's Avatar
Thread Starter
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,603
Likes: 36
From: orlando, fl
yep,

just wondering what others are getting.

beers
Reply
Old Aug 15, 2006 | 09:15 AM
  #6  
r0tor's Avatar
Registered
iTrader: (1)
 
Joined: May 2003
Posts: 3,754
Likes: 1
From: PA
why would i cruise at 72mph in 4th gear?
Reply
Old Aug 15, 2006 | 09:17 AM
  #7  
swoope's Avatar
Thread Starter
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,603
Likes: 36
From: orlando, fl
Originally Posted by r0tor
why would i cruise at 72mph in 4th gear?
you would not normally, but i was testing something and needed to stress the motor....

just found something i thought was wierd.

beers
Reply
Old Aug 15, 2006 | 12:50 PM
  #8  
rotarygod's Avatar
Registered
 
Joined: Apr 2003
Posts: 9,134
Likes: 26
From: Houston
At a guess I would say that at that rpm that cat temps would run very hot. Since the engine easily makes more than the necessary power level to keep you moving at that rpm, it is probably running pretty lean to keep power down. My guess is that you are seeing 1700-1800 degree cat temps.

Last edited by rotarygod; Aug 15, 2006 at 12:52 PM.
Reply
Old Aug 15, 2006 | 09:10 PM
  #9  
olddragger's Avatar
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
yep I got a cel when running 8k /light load in 3nd gear--waiting for that damn apex that was further away than i thought. It went right away but I thought it was strange.
OD
Reply
Old Aug 16, 2006 | 06:09 PM
  #10  
tdiddy's Avatar
Finally Boosted!!!!!!!
 
Joined: Jan 2006
Posts: 1,035
Likes: 0
From: Central IL
Here is my data. I have the SFlash.
Attached Files
File Type: txt
SFlash_cruise72.txt (7.4 KB, 277 views)
Reply
Old Aug 16, 2006 | 08:40 PM
  #11  
swoope's Avatar
Thread Starter
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,603
Likes: 36
From: orlando, fl
Originally Posted by tdiddy
Here is my data. I have the SFlash.
thank you,

this is the front o2 sensor that you are showing?????

it is starting to make sense....

beers
Reply
Old Aug 17, 2006 | 07:32 AM
  #12  
tdiddy's Avatar
Finally Boosted!!!!!!!
 
Joined: Jan 2006
Posts: 1,035
Likes: 0
From: Central IL
Yes, its the stock front o2 sensor. In my CANScan the AFR is shown as lambda so I converted the value. Also, sorry for the formating. It looked good when I copied it from Excel but when I saved it as text I lost all the formating...

What are you looking at?
Reply
Old Aug 17, 2006 | 09:15 AM
  #13  
swoope's Avatar
Thread Starter
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,603
Likes: 36
From: orlando, fl
Originally Posted by tdiddy
Yes, its the stock front o2 sensor. In my CANScan the AFR is shown as lambda so I converted the value. Also, sorry for the formating. It looked good when I copied it from Excel but when I saved it as text I lost all the formating...

What are you looking at?
i have been looking at the afrs in the o2 sensor in the cat...

in this test the afrs are up in the low 15s. i thought it was a bit odd as the ecu tends to richen up when the cat gets that hot...

i will look again at the front o2 sensor..

beers
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
galognu
Rotary Swaps
138
Nov 16, 2020 05:20 AM
dezau
RX-8 Racing
10
Mar 9, 2016 09:50 AM
JCTaylor
New Member Forum
3
Sep 30, 2015 07:31 PM
urbanvoodoo
RX-8 Discussion
2
Sep 30, 2015 12:41 AM
GK1707
RX-8 Parts For Sale/Wanted
0
Sep 27, 2015 07:33 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 04:38 PM.