VDO Porsche tach problems

Jogyver

Well the new windshield is to arrive tommorrow . Hopefully not damaged. I'll have the door hung, steering wheel mounted and it should be on the street Friday. I am having one problem right now . My VDO tach pegs out once the ignition switch is switched on . I have tried evey wiring combination you can imagine. Does the VDO Tach have diodes it it? Or does anyone have any suggestions?
Thanks
Joe

8/3/058:06 PM

❤️ 0

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Jogyver

Well the new windshield is to arrive tommorrow . Hopefully not damaged. I'll have the door hung, steering wheel mounted and it should be on the street Friday. I am having one problem right now . My VDO tach pegs out once the ignition switch is switched on . I have tried evey wiring combination you can imagine. Does the VDO Tach have diodes it it? Or does anyone have any suggestions?
Thanks
Joe

8/3/058:06 PM

❤️ 0

Jogyver

Something to add. I have a Mallory distibutor.

8/3/059:10 PM

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TUBB

If you mean igniution on but engine not started, I'd check our old bugaboo, no ground.
ed

8/4/054:37 AM

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