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Jeep Wrangler YJ
YJ General Discussion
TPS setting
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<blockquote data-quote="deadpool1" data-source="post: 439462" data-attributes="member: 21229"><p>now lets talk limp home. mode</p><p>if the say map goes dead, the PCM fails for dead map and sets DTC error (2digits) 1<strong><span style="color: rgb(184, 49, 47)">3 or 14 DTC</span></strong></p><p>but the engine doesnt die lacking all MAP data. gone. ( a win) kinda.</p><p>no.</p><p>it goes to limphome and uses the TPS as crude MAP sensor now dead, it simply simulates a dead map sensors.</p><p>so the real cause is not scanning the PCM for DTC errors first. (if true) the CEL must not glow running, same then ,same now 2023.</p><p></p><p><em><strong><span style="color: rgb(65, 168, 95)">key on, does the CEL lamp glow as it must for the CEL lamp self test</span></strong></em></p><p><strong><em><span style="color: rgb(65, 168, 95)">then goes out running?????????</span></em></strong></p><p>the check engine lamp. what does it do now</p><p></p><p>the 90' manual for RENIX PCM shows only DRB-II, scan tools work to read DTC errors. (my old sold 88 same sad story)</p><p>1991 up the key on 3 times sets blink codes, for DTC errors. not 90 or older.( french PCM's) </p><p>"1991 - Chrysler Corporation (then the owners of the Jeep brand replaced the <strong>Renix</strong> control system with OBD-I-compliant control electronics, the Chrysler HO EFI. big change in 1991." yours is less smart.</p><p></p><p></p><p></p><p>there are 3 oem manuals and 3kinds (full FSM, EFI book and diagnostic book) and 3 forms of books.</p><p>on CD + pdf (ebay endless) the RED book is OEM, do not get less.</p><p>free, google finds them ever time, PDF</p><p><a href="https://www.ebay.com/itm/145151256285?mkcid=1&mkrid=711-53200-19255-0&siteid=0&customid=link&campid=5337789113&toolid=20001&mkevt=1" target="_blank">real paper books, seen used on ebay, endless.</a><< click me</p><p>and chilton/haynes junk, I call a door stop. a toxic mix of 10 years of cars, not one good for 1 car. ever. (but great books on how not to get hurt ,etc)</p><p>the oem book is 2200 pages long</p></blockquote><p></p>
[QUOTE="deadpool1, post: 439462, member: 21229"] now lets talk limp home. mode if the say map goes dead, the PCM fails for dead map and sets DTC error (2digits) 1[B][COLOR=rgb(184, 49, 47)]3 or 14 DTC[/COLOR][/B] but the engine doesnt die lacking all MAP data. gone. ( a win) kinda. no. it goes to limphome and uses the TPS as crude MAP sensor now dead, it simply simulates a dead map sensors. so the real cause is not scanning the PCM for DTC errors first. (if true) the CEL must not glow running, same then ,same now 2023. [I][B][COLOR=rgb(65, 168, 95)]key on, does the CEL lamp glow as it must for the CEL lamp self test[/COLOR][/B][/I] [B][I][COLOR=rgb(65, 168, 95)]then goes out running?????????[/COLOR][/I][/B] the check engine lamp. what does it do now the 90' manual for RENIX PCM shows only DRB-II, scan tools work to read DTC errors. (my old sold 88 same sad story) 1991 up the key on 3 times sets blink codes, for DTC errors. not 90 or older.( french PCM's) "1991 - Chrysler Corporation (then the owners of the Jeep brand replaced the [B]Renix[/B] control system with OBD-I-compliant control electronics, the Chrysler HO EFI. big change in 1991." yours is less smart. there are 3 oem manuals and 3kinds (full FSM, EFI book and diagnostic book) and 3 forms of books. on CD + pdf (ebay endless) the RED book is OEM, do not get less. free, google finds them ever time, PDF [URL='https://www.ebay.com/itm/145151256285?mkcid=1&mkrid=711-53200-19255-0&siteid=0&customid=link&campid=5337789113&toolid=20001&mkevt=1']real paper books, seen used on ebay, endless.[/URL]<< click me and chilton/haynes junk, I call a door stop. a toxic mix of 10 years of cars, not one good for 1 car. ever. (but great books on how not to get hurt ,etc) the oem book is 2200 pages long [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
TPS setting
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