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Outdoor & Recreation
Campers, Vans & 4WD's
98 Toyota Prado duel fuel check engine light frustration.
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<blockquote data-quote="B5MECH" data-source="post: 341005" data-attributes="member: 6829"><p>If it comes to a vacuum test ask your engine guy if he has a vacuum gauge...not pump....it shows optimum vacuum to timing issues to air leak :Y: </p><p>I use one alot <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /> :Y: helps tuning and also canceling out other issues...</p><p>Hook up and drive until problem starts....... noting vacuum changes <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> ...he'll show how to set it up and read it <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /> :Y: </p><p>It could also help with the sensor as it shows incorrect timing vacuum if the freeze doesn't work...</p><p></p><p>Note <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /> </p><p>You need to do the freeze thing with the engine running...it will fix or not</p><p> Ign on / off resets the computer so it will throw confusion <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /> </p><p>I think in that model 20 Ignition cycles should clear the DTC's</p></blockquote><p></p>
[QUOTE="B5MECH, post: 341005, member: 6829"] If it comes to a vacuum test ask your engine guy if he has a vacuum gauge...not pump....it shows optimum vacuum to timing issues to air leak :Y: I use one alot :cool: :Y: helps tuning and also canceling out other issues... Hook up and drive until problem starts....... noting vacuum changes ;) ...he'll show how to set it up and read it :cool: :Y: It could also help with the sensor as it shows incorrect timing vacuum if the freeze doesn't work... Note :o You need to do the freeze thing with the engine running...it will fix or not Ign on / off resets the computer so it will throw confusion :rolleyes: I think in that model 20 Ignition cycles should clear the DTC's [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
98 Toyota Prado duel fuel check engine light frustration.
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