http://www.nefariousmotorsports.com/wiki/index.php?action=history&feed=atom&title=ChecksumsChecksums - Revision history2026-06-13T20:15:59ZRevision history for this page on the wikiMediaWiki 1.21.1http://www.nefariousmotorsports.com/wiki/index.php?title=Checksums&diff=230&oldid=prevMattDanger: /* Resources */2011-07-11T14:33:02Z<p><span dir="auto"><span class="autocomment">Resources</span></span></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 14:33, 11 July 2011</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://en.wikipedia.org/wiki/Checksum Wikipedia Checksum article]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://en.wikipedia.org/wiki/Checksum Wikipedia Checksum article]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's excellent breakdown] of checkums in ME7</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's excellent breakdown] of checkums in ME7</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*[http://nefariousmotorsports.com/forum/index.php/topic,362.0.html setzi62's breakdown]</ins></div></td></tr>
</table>MattDangerhttp://www.nefariousmotorsports.com/wiki/index.php?title=Checksums&diff=227&oldid=prevMattDanger: /* Utilities */2011-07-07T22:01:20Z<p><span dir="auto"><span class="autocomment">Utilities</span></span></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 22:01, 7 July 2011</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.mtx-electronics.com/automotive/page.php?25 MTX-Electronics' $15 checksum plugin] for TunerPro - The most popular method used in the Nefmoto community</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.mtx-electronics.com/automotive/page.php?25 MTX-Electronics' $15 checksum plugin] for TunerPro - The most popular method used in the Nefmoto community</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's ECUFix]  </div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's ECUFix]  </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.nefariousmotorsports.com/forum/index.php/topic,447.0title,.html ME7Check] is a free executable written by forum member [http://nefariousmotorsports.com/forum/index.php?action=profile;u=421 setzi62] will tell you whether the checksums in a file are valid or not. It does not correct them but is <del class="diffchange diffchange-inline">sometimes </del>useful.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.nefariousmotorsports.com/forum/index.php/topic,447.0title,.html ME7Check] is a free executable written by forum member [http://nefariousmotorsports.com/forum/index.php?action=profile;u=421 setzi62] will tell you whether the checksums in a file are valid or not. It does not correct them but is useful <ins class="diffchange diffchange-inline">because the MTX-Electronics plugin mentioned above does not provide feedback</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=Resources=</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=Resources=</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://en.wikipedia.org/wiki/Checksum Wikipedia Checksum article]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://en.wikipedia.org/wiki/Checksum Wikipedia Checksum article]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's excellent breakdown] of checkums in ME7</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's excellent breakdown] of checkums in ME7</div></td></tr>
</table>MattDangerhttp://www.nefariousmotorsports.com/wiki/index.php?title=Checksums&diff=224&oldid=prevMattDanger: Initial creation2011-07-07T21:58:13Z<p>Initial creation</p>
<p><b>New page</b></p><div>=Overview=<br />
Checksums exist to verify the integrity of data and ensure the data has not changed. Your car's engine management system uses checksums to protect the engine components in the event the data on the ECU were to be corrupted or changed accidentally.<br />
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Checksums are embedded in the ECU file. The same model ECU will have the same checksum values, because the code on the ECU is the same. They are calculated using data in the file. The ECU contains a few different checksums, depending on the ECU model. <br />
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The ECU will recalculate some checksums every startup and compare the values to the one stored in the ECU. If they do not match the stored checksums it assumes data has been corrupted and will not allow the engine to start to prevent possible damage or other annoying things.<br />
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When you modify the ECU file you absolutely should recalculate the checksum values. This would be tedious if done by hand but fortunately for us MTX-Electronics has released a [http://www.mtx-electronics.com/automotive/page.php?25 $15 checksum plugin] for TunerPro that makes this process seamless.<br />
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=ECU Specific Data=<br />
==B5 S4 8D0907551M (M-box) ECU ==<br />
Checksum value locations:<br />
*0x08038 - 0x0803F<br />
*0x1B9B0 - 0x1B9B3<br />
*0x1FBB2 - 0x1FFD1<br />
*0x7A866 - 0x7A875<br />
*0xFFFE0 - 0xFFFE7<br />
<br />
=Utilities=<br />
*[http://www.mtx-electronics.com/automotive/page.php?25 MTX-Electronics' $15 checksum plugin] for TunerPro - The most popular method used in the Nefmoto community<br />
*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's ECUFix] <br />
*[http://www.nefariousmotorsports.com/forum/index.php/topic,447.0title,.html ME7Check] is a free executable written by forum member [http://nefariousmotorsports.com/forum/index.php?action=profile;u=421 setzi62] will tell you whether the checksums in a file are valid or not. It does not correct them but is sometimes useful.<br />
<br />
=Resources=<br />
*[http://en.wikipedia.org/wiki/Checksum Wikipedia Checksum article]<br />
*[http://www.andywhittaker.com/en-gb/ecu/boschmotronicme71.aspx Andy Whittaker's excellent breakdown] of checkums in ME7</div>MattDanger