Suddenly Lean at WOT!
Oct 13, 2009, 11:03 AM
#19
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your pulse width is ok, and well below 100%. pulse width with RPM can determine the duty cycle. you need to find the period of 2 revolutions of the crank, and divide your pulse width over the period. that gives the duty cycle.
for example:
7000(rev/min) / 60(sec/min) = 116.66(rev/sec) then take the inverse to get (sec/rev)
1/116.66(rev/sec) = .00857(sec/rev). now multiple by two because you need the time of two crank revolutions.
.00857(sec/rev) * 2 revs = .017 sec = 17ms. since you said your injector pulse width is 10.7ms, take the 10.7ms / 17ms = IDC = 63% injector duty cycle.
evo_kid: wasn't naji using an evoX? i know the LTFT effects the WOT on the X pretty significantly, but it doesn't on the 8/9 (or if it does, its not noticable).
for example:
7000(rev/min) / 60(sec/min) = 116.66(rev/sec) then take the inverse to get (sec/rev)
1/116.66(rev/sec) = .00857(sec/rev). now multiple by two because you need the time of two crank revolutions.
.00857(sec/rev) * 2 revs = .017 sec = 17ms. since you said your injector pulse width is 10.7ms, take the 10.7ms / 17ms = IDC = 63% injector duty cycle.
evo_kid: wasn't naji using an evoX? i know the LTFT effects the WOT on the X pretty significantly, but it doesn't on the 8/9 (or if it does, its not noticable).
Oct 13, 2009, 11:08 AM
#20
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Well if nothing else atleast i'm learning how to understand these logs better. There was a small hole in the line that goes to the C-port on the bov (synapse) to the mbc(I Tee'd into the line from the MBC to the Turbo to install the BOV.)
I fixed it, but haven't gotten a chance to drive it again. Is there even the slightest chance that could be the problem?
I fixed it, but haven't gotten a chance to drive it again. Is there even the slightest chance that could be the problem?
Oct 13, 2009, 11:53 AM
#21
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When I started the car I got a code today P0403. Seems to be an evap code. I guess that means there has to be a line disconnected somewhere.
Is this code and my lean problem probably related?
Is this code and my lean problem probably related?
Oct 13, 2009, 01:02 PM
#24
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FINALLY! There's some line WAY down there thats just hanging. It comes out a total of 3 lines. 2 are connected, ones hanging. I can't quite reach nor tell where it's supposed to plug in.
Now i'm excited to get the car home and in the air so I can figure out where that goes. I hope this solves my problem and i'm not getting excited for nothing!
Now i'm excited to get the car home and in the air so I can figure out where that goes. I hope this solves my problem and i'm not getting excited for nothing!
Oct 13, 2009, 01:34 PM
#26
your pulse width is ok, and well below 100%. pulse width with RPM can determine the duty cycle. you need to find the period of 2 revolutions of the crank, and divide your pulse width over the period. that gives the duty cycle.
for example:
7000(rev/min) / 60(sec/min) = 116.66(rev/sec) then take the inverse to get (sec/rev)
1/116.66(rev/sec) = .00857(sec/rev). now multiple by two because you need the time of two crank revolutions.
.00857(sec/rev) * 2 revs = .017 sec = 17ms. since you said your injector pulse width is 10.7ms, take the 10.7ms / 17ms = IDC = 63% injector duty cycle.
evo_kid: wasn't naji using an evoX? i know the LTFT effects the WOT on the X pretty significantly, but it doesn't on the 8/9 (or if it does, its not noticable).
for example:
7000(rev/min) / 60(sec/min) = 116.66(rev/sec) then take the inverse to get (sec/rev)
1/116.66(rev/sec) = .00857(sec/rev). now multiple by two because you need the time of two crank revolutions.
.00857(sec/rev) * 2 revs = .017 sec = 17ms. since you said your injector pulse width is 10.7ms, take the 10.7ms / 17ms = IDC = 63% injector duty cycle.
evo_kid: wasn't naji using an evoX? i know the LTFT effects the WOT on the X pretty significantly, but it doesn't on the 8/9 (or if it does, its not noticable).
Oct 13, 2009, 01:37 PM
#27
FINALLY! There's some line WAY down there thats just hanging. It comes out a total of 3 lines. 2 are connected, ones hanging. I can't quite reach nor tell where it's supposed to plug in.
Now i'm excited to get the car home and in the air so I can figure out where that goes. I hope this solves my problem and i'm not getting excited for nothing!
Now i'm excited to get the car home and in the air so I can figure out where that goes. I hope this solves my problem and i'm not getting excited for nothing!
Hook the lines up properly and dont forget to zip tie them.
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