Power FC Is my wideband not working or what?
#1
No Paypal Accepted!
Thread Starter
Is my wideband not working or what?
I have 850s in the primary and secondary rails and it seems no matter how much fuel I remove my wideband reading wont change and the datalogger sees the values at least 2 points too low (WB reads 11.5, DL shows 9.5). The WB is a PLX and seemed to work fine before my engine went but now I think it may have problems.
My current INJ map at idle is:
P3&N2= 1.156
P3&N3=1.094
P3&N4=1.102
P4&N2=1.078
P4&N3=1.016
P4&N4=1.129
Base Map is:
P3&N2=.5
P3&N3=.556
P3&N4=.776
P4&N2=1.016
P4&N3=1.072
P4&N4=1.232
Should be I be getting AFRs in the mid 11s at idle w/those values? Is my WB working?
Thanks for the help.
My current INJ map at idle is:
P3&N2= 1.156
P3&N3=1.094
P3&N4=1.102
P4&N2=1.078
P4&N3=1.016
P4&N4=1.129
Base Map is:
P3&N2=.5
P3&N3=.556
P3&N4=.776
P4&N2=1.016
P4&N3=1.072
P4&N4=1.232
Should be I be getting AFRs in the mid 11s at idle w/those values? Is my WB working?
Thanks for the help.
#3
Eye In The Sky
iTrader: (2)
Join Date: Feb 2001
Location: In A Disfunctional World
Posts: 7,895
Likes: 0
Received 114 Likes
on
66 Posts
Your AUX input for the WB must not be set up correctly, bad connection, bad sensor?
My engine idles best around 12.8AFR with optimum manual idle timing control.
Idle timing and porting affects the best AFR.
As previous posted: if your WB has it's own readout, calibrate (aux poly) the DL readings to match it. Kyle and I have found about a .1 to .3 leaner reading by DLs than what the WB displays give.
I have the PLX M-300.
My engine idles best around 12.8AFR with optimum manual idle timing control.
Idle timing and porting affects the best AFR.
As previous posted: if your WB has it's own readout, calibrate (aux poly) the DL readings to match it. Kyle and I have found about a .1 to .3 leaner reading by DLs than what the WB displays give.
I have the PLX M-300.
#6
Need more sleep
iTrader: (1)
Originally Posted by Buzzardsluck
I have 850s in the primary and secondary rails and it seems no matter how much fuel I remove my wideband reading wont change and the datalogger sees the values at least 2 points too low (WB reads 11.5, DL shows 9.5). The WB is a PLX and seemed to work fine before my engine went but now I think it may have problems.
My current INJ map at idle is:
P3&N2= 1.156
P3&N3=1.094
P3&N4=1.102
P4&N2=1.078
P4&N3=1.016
P4&N4=1.129
Base Map is:
P3&N2=.5
P3&N3=.556
P3&N4=.776
P4&N2=1.016
P4&N3=1.072
P4&N4=1.232
Should be I be getting AFRs in the mid 11s at idle w/those values? Is my WB working?
Thanks for the help.
My current INJ map at idle is:
P3&N2= 1.156
P3&N3=1.094
P3&N4=1.102
P4&N2=1.078
P4&N3=1.016
P4&N4=1.129
Base Map is:
P3&N2=.5
P3&N3=.556
P3&N4=.776
P4&N2=1.016
P4&N3=1.072
P4&N4=1.232
Should be I be getting AFRs in the mid 11s at idle w/those values? Is my WB working?
Thanks for the help.
You do know that you have to reduce the lag on the primaries to lean out idle, just pulling fuel in the correction maps or the inj table won't do it. Try running less lag, even negative numbers, and see if your afrs rise at idle. Beware that this will reduce fuel everywhere ...
Trending Topics
#8
No Paypal Accepted!
Thread Starter
Originally Posted by twokrx7
You do know that you have to reduce the lag on the primaries to lean out idle, just pulling fuel in the correction maps or the inj table won't do it. Try running less lag, even negative numbers, and see if your afrs rise at idle. Beware that this will reduce fuel everywhere ...
This worked, thank you .
For anyones future seaching I set it at -.33. It could probably go a little lower but not sure. I still have severe idle issues w/this setting so I will amend this thread if the value change helps.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
streetlegal?
New Member RX-7 Technical
13
03-17-22 02:46 PM
82streetracer
1st Generation Specific (1979-1985)
7
08-23-15 09:28 AM