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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="user 7268" data-source="post: 340851" data-attributes="member: 7268"><p><strong>no signal to ecu for crank revolutions between 1800-5600rpm ................... once it warms up the check engine light still comes on after temp gage moves to normal running temp </strong></p><p></p><p>Would say that you have a sensor about to pack up (crank or cam if it has both ) as they usually play up more when they get hot in early stages of failing. If you can get to it wait till it plays up then pour a bottle of water on it and take for another drive quickly .</p><p>As B5 has suggested at least see if it is common on both fuels so you can at least cut your fault down to the cause being fuel or electrical. Would also explain the no power as when it drops the signal would default into limp mode and usually backs the timing off <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>Just had an after thought ................... could also be excessive slack in the cam belt or belt tensioner failing which allows the camshaft to float which will trigger fault light also as ecu see's it as cam going out of timing - phase. How long since cam belt has been serviced ?</p></blockquote><p></p>
[QUOTE="user 7268, post: 340851, member: 7268"] [b]no signal to ecu for crank revolutions between 1800-5600rpm ................... once it warms up the check engine light still comes on after temp gage moves to normal running temp [/b] Would say that you have a sensor about to pack up (crank or cam if it has both ) as they usually play up more when they get hot in early stages of failing. If you can get to it wait till it plays up then pour a bottle of water on it and take for another drive quickly . As B5 has suggested at least see if it is common on both fuels so you can at least cut your fault down to the cause being fuel or electrical. Would also explain the no power as when it drops the signal would default into limp mode and usually backs the timing off :o Just had an after thought ................... could also be excessive slack in the cam belt or belt tensioner failing which allows the camshaft to float which will trigger fault light also as ecu see's it as cam going out of timing - phase. How long since cam belt has been serviced ? [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
98 Toyota Prado duel fuel check engine light frustration.
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