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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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Location:
Tassie
Registered:
October 2003
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Re: Tacho unusual behavior (after replac. analog->digi dash)
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Tue, 01 February 2005 04:53
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I've got an SA63 with a 1ggte and the MA70 dash.
it does the same thing as your but the speedo does it aswell.
i've got it booked in to an auto sparkie i'll tell what what he concludes.
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