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Location:
Russia
Registered:
January 2005
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Tacho unusual behavior (after replac. analog->digi dash)
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Tue, 01 February 2005 03:54
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I've read another topics related to tacho. But i have a problem with "native" supra digi dash, and still cannot find a reason:
When i start car (for the first time in a day), in cold weather, it shows correct RPMs, but after 3-5 minutes tacho starts "to jump".
(Here is a link to 150Kb video that shows what i need to fix, cause i am afraid to be not understood )
I swear that engine runs smoothly and w/o detonation, but when it meats the "working" temperature level, the tacho goes "mad". I try to connect another analog tacho to proper diagnos.connectors, it shows right RPMs, and i even think that in this moment digidash shows right RPMs too (but i'm not sure about last thing, cause engine was "cold" when i tested it).
Also i found that when i drive fast, then tacho "stops" at 4000 or 6000 rpms, depending on current mode of autotranny.
I have to say that last summer i replaced analog dash with digital, and also all wiring under the safety pad.
and, i forget, - it's 1986' GA70 supra with 1G-GE
Any suggestion?
[Updated on: Tue, 01 February 2005 03:57]
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