{"id":11805,"date":"2005-06-11T22:49:00","date_gmt":"2005-06-11T18:49:00","guid":{"rendered":"https:\/\/icelord.net\/wordpress\/archives\/11805"},"modified":"2005-06-11T22:49:00","modified_gmt":"2005-06-11T18:49:00","slug":"h23-vtec","status":"publish","type":"post","link":"https:\/\/icelord.net\/wordpress\/?p=11805","title":{"rendered":"h23 vtec"},"content":{"rendered":"

\u0442\u0430\u043a\u0438 \u043e\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0438 \u0437\u0430\u0438\u043f\u0438\u0441\u044c, \u043f\u043e\u0441\u043b\u0435 \u0432\u044b\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0437\u0430\u0436\u0438\u0433\u0430\u043d\u0438\u044f \u0438 \u0445\u043e\u043b\u043e\u0441\u0442\u044b\u0445 — \u0435\u0434\u0435\u0442 \u043a\u0430\u043a \u043d\u0430\u0434\u043e<\/p>\n

\u0441\u0435\u0439\u0447\u0430\u0441 \u0432\u0441\u043f\u043e\u043c\u0438\u043d\u0430\u044e \u0430\u0441\u0441\u0435\u043c\u0431\u043b\u0435\u0440, \u0431\u0443\u0434\u0443 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0438 \u043a\u0443\u0440\u043e\u0447\u0438\u0442\u044c, \u0438\u0431\u043e \u043d\u0435\u0445 \ud83d\ude09<\/p>\n


\nROM<\/p>\n

Locate Bytes Description Notes
\n 0C21 2 High Cam Rev Limit Reset Moved to memory here as well as the later entries
\n 0C26 2 High Cam Rev Limit Set Moved to memory here as well as the later entries
\n 2EAC 1 Speed Limiter 0-255km\/h (0-159MPH) FF disables speed limiter
\n 5403 2 Low Cam Rev Limit Reset OBD1_16bit RPM format
\n 5407 2 Low Cam Rev Limit Set
\n 540B 2 High Cam Rev Limit Reset
\n 540F 2 High Cam Rev Limit Set
\n 6000 40 Low Cam Rev Scalar 1×40 Each scalar is in OBD1_16bit RPM format
\n 6028 40 High Cam Rev Scalar 1×40 Each scalar is in OBD1_16bit RPM format
\n 6050 10 Low and High Cam Map Scalar 1×10 OBD1_8bitMBar
\n 60AA 200 Low Cam Fuel Table Unknown Conversion Formula
\n 6172 200 High Cam Fuel Table Unknown Conversion Formula
\n 63F8 200 Low Cam Ignition Table OBD1_8bit Advance
\n 659C 200 High Cam Ignition Table OBD1_8bit Advance<\/p>\n

OBD1_16bit RPM(»x») = 1875000\/»x»
\n OBD1_8bit RPM = (2^Q)* (floor(R500\/64)+500)
\n OBD1_8bit Ignition(»v») = (»v»-24)\/4
\n————————————————————-
\nRev Limits:<\/p>\n

5403h — Low cam restart
\n5407h — Low cam limit
\n540Bh — High cam restart
\n540Fh — High cam limit<\/p>\n

0c21h — Restart specified here as well
\n0c26h — Limit specified here as well<\/p>\n

VTEC:<\/p>\n

359dh — High load release
\n35a2h — High load engage
\n35a9h — Low load release
\n35aeh — Low load engage<\/p>\n

Coolant temp check:<\/p>\n

35CA — 044h<\/p>\n

Idle:<\/p>\n

01474h — 16bit RPM
\n01487h — 16bit RPM<\/p>\n

Startup Idle Maps:
\nFORMAT 3 BYTES: 8bit ECT Temp, 16bit RPM<\/p>\n

Map1 0551dh 7Settingsx3Bytes=21Bytes<\/p>\n

Map2 5532h 7Settingsx3Bytes=21Bytes<\/p>\n

Datalogging:<\/p>\n

0043h — Interrupt Start
\nWhich jumps to either 004bh or 00dbh… When writing your datalogging code put your
\ncode at 000dbh as that’s the main section that’s called… or use the vector pointer
\nat 0020h to specify a new interrupt location…<\/p>\n

SRBUF: 07dh
\nSTBUF: 07ch<\/p>\n

Checksum:<\/p>\n

Disable checksum @ 0D22 909DF17F->03360D00<\/p>\n

Memory Locations:
\nHere’s a few memory locations for use with Boost or 2-step code to get you all started…<\/p>\n

0aeh is 16bit RPM
\n0179h and 0289h is 8bit RPM (For use with VTEC)
\n0a4h is the map sensor
\n0dfh is the VSS<\/p>\n

Extra tidbits…<\/p>\n

Map sensor check @ 1f57h for use with Boost<\/p>\n

CEL Stuff @ 1a4bh for MIL Shiftlight<\/p>\n

Rev limit set locations @ 157dh for 2-step<\/p>\n

AC Stuff @ 1b4dh for AC Cut<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0442\u0430\u043a\u0438 \u043e\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0438 \u0437\u0430\u0438\u043f\u0438\u0441\u044c, \u043f\u043e\u0441\u043b\u0435 \u0432\u044b\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0437\u0430\u0436\u0438\u0433\u0430\u043d\u0438\u044f \u0438 \u0445\u043e\u043b\u043e\u0441\u0442\u044b\u0445 — \u0435\u0434\u0435\u0442 \u043a\u0430\u043a \u043d\u0430\u0434\u043e \u0441\u0435\u0439\u0447\u0430\u0441 \u0432\u0441\u043f\u043e\u043c\u0438\u043d\u0430\u044e \u0430\u0441\u0441\u0435\u043c\u0431\u043b\u0435\u0440, \u0431\u0443\u0434\u0443 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0438 \u043a\u0443\u0440\u043e\u0447\u0438\u0442\u044c, \u0438\u0431\u043e \u043d\u0435\u0445 \ud83d\ude09<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11805","post","type-post","status-publish","format-standard","hentry","category-blog"],"views":478,"_links":{"self":[{"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/11805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11805"}],"version-history":[{"count":0,"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/11805\/revisions"}],"wp:attachment":[{"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11805"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11805"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icelord.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}