EBL idle and bigger cam....
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Member
Joined: May 2004
Posts: 109
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From: Dyersburg, TN
Car: 1990 Chevy 454SS
Engine: 454
Transmission: TH400
EBL idle and bigger cam....
Installed bigger cam recently, because of a flattened lobe. it is the 11-209-3, comp, 219/229,507/531 lift. EBL ran. of course.
Had a heck of time getting it to idle. it bucked and jumped, even after setting the idle speed up some. ended up with closed loop idle. it idles now, but seems to be rich. I have a zt-2, but messed the cable up while breaking in the cam, so it has to go back to the factory to have the fuse replaced. So stuck with a NB for now.
Learn VE had me take about 15% all across the board. BLM's traveling down the road now are 124-130 or so. So that part is close. BLM's at idle are 108, as you can see in the log file snippet below. Also attached is a screenshot of what i had to change to get it to idle in park/N and in Drive. Afraid to lean out the idle cells too much, with out the WB to back me up. So.. It idles decent now. But does any of what i changed look ok? or am i off base anywhere? Still doesnt idle as well when first started up cold, but once it warms up, its okay. The log snippet is before the last changes, to show what it was doing.
now to try to attach the screenshot....okay. hard to read to me in IE, but saved and then opened its okay...
Btw, Could not imagine doing any of this with a stock TBI, if not for Rbob and the TunerPro guy (forgot the name at this instant, but..)!!
Also, the radioshack usb to serial converter is working for me, EBL to Dell Inspiron 1000 laptop.
Had a heck of time getting it to idle. it bucked and jumped, even after setting the idle speed up some. ended up with closed loop idle. it idles now, but seems to be rich. I have a zt-2, but messed the cable up while breaking in the cam, so it has to go back to the factory to have the fuse replaced. So stuck with a NB for now.
Learn VE had me take about 15% all across the board. BLM's traveling down the road now are 124-130 or so. So that part is close. BLM's at idle are 108, as you can see in the log file snippet below. Also attached is a screenshot of what i had to change to get it to idle in park/N and in Drive. Afraid to lean out the idle cells too much, with out the WB to back me up. So.. It idles decent now. But does any of what i changed look ok? or am i off base anywhere? Still doesnt idle as well when first started up cold, but once it warms up, its okay. The log snippet is before the last changes, to show what it was doing.
Code:
00:13:48 825 0 53 57 0 79 40 80 796 34 27 1.877 0.00 5 N N N Y N N Y Y Y N 0 125 108 124 69 0.0 14.7 0.0 0.0 0.000 3.1 0.000 0.000 00:13:48 775 0 54 57 0 79 40 80 792 32 25 2.014 0.00 5 N Y N Y N N Y Y Y N 0 128 108 124 71 0.0 14.7 0.0 0.0 0.000 4.7 0.000 0.931 00:13:48 725 0 57 57 0 79 40 80 796 30 21 2.808 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 6.3 0.107 0.641 00:13:48 700 0 60 57 0 79 40 80 796 29 21 2.899 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 7.8 0.107 0.641 00:13:48 650 0 63 58 0 79 40 80 792 28 20 3.082 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 10.0 0.122 0.641 00:13:48 650 0 64 58 0 79 40 80 788 28 19 3.143 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 72 0.0 14.7 0.0 0.0 0.000 8.1 0.122 0.717 00:13:48 650 0 66 58 0 79 40 80 792 28 17 3.113 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 72 0.0 14.7 0.0 0.0 0.000 10.0 0.107 0.641 00:13:48 675 0 65 58 0 79 40 80 788 28 17 3.113 0.00 7 N Y N Y N N Y Y Y N 0 128 108 124 72 0.0 14.7 0.0 0.0 0.000 7.8 0.107 0.717 00:13:48 625 0 67 58 0 79 40 80 792 28 16 2.960 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 7.5 0.092 0.641 00:13:48 650 0 67 59 0 79 40 80 792 28 15 3.143 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 7.8 0.107 0.641 00:13:48 650 0 68 59 0 79 40 80 788 29 16 2.960 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 6.3 0.076 0.427 00:13:48 675 0 67 59 0 79 40 80 792 28 16 2.899 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 5.6 0.076 0.000 00:13:48 650 0 67 59 0 79 40 80 801 29 16 2.991 0.00 6 N Y N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 5.0 0.076 0.427 00:13:48 700 0 67 59 0 79 40 80 792 29 16 2.502 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 4.7 0.000 0.000 00:13:48 650 0 67 59 0 79 40 80 796 31 16 2.472 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 73 0.0 14.7 0.0 0.0 0.000 3.4 0.000 0.000 RUNTIME RPM MPH MAP VE% TPS CTS IAT I/C O2 G/S SA sPW aPW DC% AyAeDeIdPeDcClLnFnTc Cl INT BLM BPC IAC Fpsi AFR WB dTPS tpsAE dMAP mapAE aePW 00:13:49 700 0 67 59 0 79 40 80 805 31 16 2.960 0.00 6 N N N Y N N Y Y Y N 0 128 108 124 74 0.0 14.7 0.0 0.0 0.000 2.8 0.000 0.000 00:13:49 700 0 67 59 0 79 40 80 810 31 17 2.441 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 74 0.0 14.7 0.0 0.0 0.000 2.8 0.000 0.000 00:13:49 700 0 66 59 0 79 40 80 810 29 17 2.411 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 74 0.0 14.7 0.0 0.0 0.000 1.3 0.000 0.000 00:13:49 675 0 65 59 0 79 40 80 810 29 16 2.396 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 75 0.0 14.7 0.0 0.0 0.000 1.6 0.000 0.000 00:13:49 700 0 65 59 0 79 40 80 814 30 17 2.396 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 75 0.0 14.7 0.0 0.0 0.000 1.3 0.000 0.000 00:13:49 700 0 65 59 0 79 40 80 819 32 17 2.396 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 75 0.0 14.7 0.0 0.0 0.000 0.6 0.000 0.000 00:13:49 725 0 65 59 0 79 40 80 819 32 17 2.396 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 75 0.0 14.7 0.0 0.0 0.000 0.6 0.000 0.000 00:13:49 750 0 65 59 0 79 40 80 819 31 18 2.396 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 75 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 725 0 64 59 0 79 40 80 819 32 18 2.396 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 75 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 725 0 64 59 0 79 40 80 819 33 18 2.365 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 75 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 725 0 63 59 0 79 40 80 819 32 18 2.335 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 76 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.427 00:13:49 725 0 64 59 0 79 40 80 819 33 18 2.365 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 76 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 750 0 63 59 0 79 40 80 814 33 19 2.365 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 76 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 750 0 63 59 0 79 40 80 814 33 19 2.365 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 76 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 725 0 64 59 0 79 40 80 823 32 19 2.365 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 77 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 750 0 63 59 0 79 40 80 819 33 19 2.365 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 77 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:49 725 0 63 59 0 79 40 80 814 33 19 2.365 0.00 5 N N N Y N N Y Y Y N 0 128 108 124 77 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 RUNTIME RPM MPH MAP VE% TPS CTS IAT I/C O2 G/S SA sPW aPW DC% AyAeDeIdPeDcClLnFnTc Cl INT BLM BPC IAC Fpsi AFR WB dTPS tpsAE dMAP mapAE aePW 00:13:50 750 0 63 59 0 79 40 80 814 33 19 2.899 0.00 7 N N N Y N N Y Y Y N 0 127 108 124 78 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 750 0 63 59 0 79 40 80 814 33 18 2.319 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 78 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 59 0 79 40 80 814 34 19 2.350 0.00 6 N N N Y N N Y Y Y N 0 127 108 124 78 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 59 0 79 40 80 814 34 19 2.319 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 78 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 59 0 79 40 80 814 34 20 2.289 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 79 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 59 0 79 40 80 819 34 19 2.289 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 79 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 800 0 63 59 0 79 40 80 814 34 20 2.289 0.00 6 N N N Y N N Y Y Y N 0 127 108 124 79 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 62 59 0 79 40 80 814 34 20 2.808 0.00 7 N N N Y N N Y Y Y N 0 127 108 124 80 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 59 0 79 40 80 810 34 20 2.319 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 80 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 750 0 63 59 0 79 40 80 819 34 20 2.289 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 80 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 59 0 79 40 80 814 34 19 2.289 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 80 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 60 0 79 40 80 810 34 23 2.335 0.00 6 N N N Y N N Y Y Y N 0 127 108 124 80 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 62 59 0 79 40 80 814 34 23 2.274 0.00 5 N N N Y N N Y Y Y N 0 127 108 124 80 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 63 59 0 79 40 80 819 36 23 2.258 0.00 5 N N N Y N N Y Y Y N 0 126 108 124 80 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 800 0 62 59 0 79 40 80 814 35 24 2.258 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 81 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 61 59 0 79 40 80 819 34 24 2.258 0.00 5 N N N Y N N Y Y Y N 0 126 108 124 81 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:50 775 0 62 59 0 79 40 80 810 35 24 2.258 0.00 5 N N N Y N N Y Y Y N 0 126 108 124 81 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 RUNTIME RPM MPH MAP VE% TPS CTS IAT I/C O2 G/S SA sPW aPW DC% AyAeDeIdPeDcClLnFnTc Cl INT BLM BPC IAC Fpsi AFR WB dTPS tpsAE dMAP mapAE aePW 00:13:51 800 0 61 59 0 79 40 80 810 36 25 2.228 0.00 5 N N N Y N N Y Y Y N 0 126 108 124 82 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 825 0 61 60 0 79 40 80 814 37 26 2.258 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 82 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 825 0 61 59 0 79 40 80 814 36 26 2.197 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 82 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 825 0 60 60 0 79 40 80 810 38 27 2.228 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 82 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 59 60 0 79 40 80 814 38 27 2.197 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 83 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 59 59 0 79 40 80 810 38 27 2.136 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 83 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 59 60 0 79 40 80 814 38 27 2.136 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 83 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 59 59 0 79 40 80 814 37 27 2.655 0.00 7 N N N Y N N Y Y Y N 0 126 108 124 84 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 59 60 0 79 40 80 814 39 27 2.136 0.00 6 N N N Y N N Y Y Y N 0 126 108 124 84 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 875 0 58 59 0 79 40 80 805 39 27 2.121 0.00 6 N N N Y N N Y Y Y N 0 125 108 124 84 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 875 0 58 59 0 79 40 80 810 39 27 2.121 0.00 6 N N N Y N N Y Y Y N 0 125 108 124 85 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 58 59 0 79 40 80 810 39 27 2.090 0.00 5 N N N Y N N Y Y Y N 0 125 108 124 85 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 58 59 0 79 40 80 814 37 27 2.121 0.00 6 N N N Y N N Y Y Y N 0 125 108 124 85 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 59 60 0 79 40 80 814 38 27 2.121 0.00 6 N N N Y N N Y Y Y N 0 125 108 124 85 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 58 59 0 79 40 80 810 37 27 2.090 0.00 5 N N N Y N N Y Y Y N 0 125 108 124 86 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 850 0 58 60 0 79 40 80 814 39 27 2.121 0.00 6 N N N Y N N Y Y Y N 0 125 108 124 85 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000 00:13:51 900 0 58 60 0 79 40 80 814 40 27 2.121 0.00 6 N N N Y N N Y Y Y N 0 125 108 124 85 0.0 14.7 0.0 0.0 0.000 0.0 0.000 0.000
Btw, Could not imagine doing any of this with a stock TBI, if not for Rbob and the TunerPro guy (forgot the name at this instant, but..)!!
Also, the radioshack usb to serial converter is working for me, EBL to Dell Inspiron 1000 laptop.
Last edited by 7Point4; Aug 26, 2006 at 09:47 PM.
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
I wouldn't worry too much about needing a WB for idle setup. I usually tweak the tune for the smoothest or best idle. With the BLM bottomed out I would lower the VE table. This will also help with the cold starts. It is probably on the rich side as the VE is too high.
The other item I noticed is the high IAC counts. It will help the idle to open the throttle blades a bit. This will lower the IAC counts and allow the fuel to better flow past the blades. With the fan & A/C off I shoot for 5-10 IAC counts on a warm idle.
RBob.
The other item I noticed is the high IAC counts. It will help the idle to open the throttle blades a bit. This will lower the IAC counts and allow the fuel to better flow past the blades. With the fan & A/C off I shoot for 5-10 IAC counts on a warm idle.
RBob.
Joined: Mar 2000
Posts: 1,692
Likes: 1
From: Corona
Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: BP383 vortech, BP383, 5.7 TPI, LG4
Transmission: 4L60e, 700R4, 700R4..
Axle/Gears: 3.27, 2.73
Also, don't be afraid of the "dreaded" LEAN at anything below 50 kPa. It's almost impossible to damage an engine at that load. And idle can be leaned to the point of stall without damage.
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