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Fuel/Spark tuning for LH 2.4/EZK with TunerPro!

klr142 said:
Ok, I did change those two things. I just wanted to make sure there weren't three different things I had to change.

Specifically the
AMM Signal Multiplication factors:
LOW: 81 and HIGH: 153

and the

AMM signal lookup table before conversion:
210 213 216 219 222 225 228 232 236 240 244 248 252 255 255 255
172 174 177 179 181 184 186 188 190 192 195 197 199 202 204 207
139 141 143 145 147 149 151 153 155 157 159 161 163 165 168 170
108 110 112 114 116 119 121 123 125 127 128 130 132 134 136 137
86 88 89 90 91 93 94 95 97 98 99 101 102 104 105 107
69 70 71 72 73 74 75 76 78 79 80 81 82 83 84 85
223 226 229 232 235 239 242 245 248 251 64 65 66 66 67 68
173 176 179 182 185 187 191 194 197 200 203 206 210 213 216 219
127 130 132 135 138 141 144 147 150 152 155 158 161 164 167 170
91 93 95 97 99 101 103 106 108 110 112 115 117 119 122 124
246 252 65 66 68 70 71 73 75 77 79 80 82 85 87 89
160 165 169 174 179 184 189 194 199 205 210 216 222 228 233 240
99 102 106 109 113 116 120 123 127 131 135 139 143 147 152 156
56 58 60 62 65 67 70 72 75 78 81 84 87 90 93 96
28 29 31 32 34 35 37 38 40 42 44 46 48 49 51 54
00 00 00 00 00 15 16 17 18 19 21 22 23 24 25 27
Click to expand...
I added the actual values that are being changed here so someone doesn't have to look further for it... Also, looking back at what I tried running the other day on the General Leif, it looks like I didn't have the HIGH value set to 153 to match like I thought I did. I'll try it again today or Friday!

lookforjoe said:
Going OT somewhat - can you elaborate on what you used to monitor the knock sensor?
Click to expand...
There's also the Knocksense thing that goes in between the knock sensor and the factory harness connector that gives you an adjustable sensitivity LED light.
 
Hi

There are also a checksum plugin that IpDown made for the Tunerpro.
It is available on the site under the downloads/tools category.
It is called LHCSum.dll

To activate it you need to put it in the main tunerpro folder.
Also the actual XDF has to have it added under the checksum plugin option

When all is OK a simple save on the save icon will update the checksum then just upload again to LH to correct the used binary

YS
JB
 
klr142 said:
looking back at what I tried running the other day on the General Leif, it looks like I didn't have the HIGH value set to 153 to match like I thought I did. I'll try it again today or Friday!
Click to expand...

Success! No issues running the 012 AMM data with the proper related information. I don?t know if the ECU is using the full range of load cells on the map because I couldn?t look at a computer while on the track, but I got the car running well enough as is with the AFR pretty close. Hopefully we?ll get it on a dyno to dial things in further.
 
I can confirm that yes, TP and LH Editor work on W10 but with the plugin there's no need for the editor. Just make sure once you're done doing your realtime tuning that you save the tune before you do a final upload to the ostritch, otherwise the plugin won't update the checksum on the Ostrich.
 
Quick question - swapping 2.4lh into an early car with a mechanical speedo- could the tables be adjusted enough to remove the need for a speed signal?

Cheers
 
mrjaybeeze said:
Hi

There are also a checksum plugin that IpDown made for the Tunerpro.
It is available on the site under the downloads/tools category.
It is called LHCSum.dll

To activate it you need to put it in the main tunerpro folder.
Also the actual XDF has to have it added under the checksum plugin option

When all is OK a simple save on the save icon will update the checksum then just upload again to LH to correct the used binary

YS
JB
Click to expand...
I downloaded it and dragged it into the Tunerpro folder, but where is the checksum plugin option in the XDF?
 
Hi Kyle

step by step :-)

Top left choose XDF menu
Edit XDF header info
Bottom panes "checksums"
Add new
plug in module, choose most logical :roll::oogle:
Save

Good to go

YS
JB
 
Hi all!

I guess that there have been a lot of people that have tried to find out about the CEL light problem when tuning, is there anything written about it that I can read up on? If someone have done a lot of work but didn’t fin anything I want to start we’re they gave up :)
 
Last edited:
johan_f said:
I was told that it was impossible to not get the CEL light when tuning the LH, then I tried to find some info about it.
Click to expand...
Definitely not true. If you have a check engine light it means your tune isn't good and/or you didn't correct the checksum. See below for how to correct the checksum through tunerpro after you get the plugin mentioned above.

mrjaybeeze said:
Hi Kyle

step by step :-)

Top left choose XDF menu
Edit XDF header info
Bottom panes "checksums"
Add new
plug in module, choose most logical :roll::oogle:
Save

Good to go

YS
JB
Click to expand...
Got it, thanks!
 
Bump.

Got my ostrich and wide band a couple days ago. I've already been playing with the ostrich a bit and have a 967 bin with an 012 table running in a 946 ecu on my 90 740T. It already runs more smoothly than the 563 the car came with. I'm planning to install the wide band tomorrow so that I can really dig in and play with the fueling.

Many thanks to beepee, mrjaybeeze, and ipdown for doing the hard work pioneering this. I've been watching this thread for a few years and am excited to finally start playing with it.

I noticed a lot of old links have disappeared if they weren't a part of the info archive by ipdown on his site. Does anyone still have some of the old disassembled code? I've always been bad at asm, but it would be nice if we could get some of that info together to facilitate any future dev.
 
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