Youtube video: Putting a solid state regulator in a Mopar IVR

Yeah, I know there are better circuits for a voltage regulator, but a 7805 is a cheap and workable option, and I have some big plans that don't involve the stock dashboard. And I happened to need a new IVR in a hurry. 7805s are a lot cheaper than a stock replacement, so I pried the case open and bolted a 7805 regulator to the lid, which makes good heat sinking. Then all you have to do is solder the center leg to the housing and wires to the left and right legs. Run the left leg to IGN and the right leg to the 5 volt output, and you've got yourself a plug in replacement for the stock regulator.

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Matt Cramer
1966 Dodge Dart turbo / EFI project

Nice. Super simple.

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Home of Slant6-powered fun machines since 1988

Here's a picture of the project in progress:

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Matt Cramer
1966 Dodge Dart turbo / EFI project

What problem caused you to go after the IVR? Did the new repair fix the problem? I have been battling low readings on the temperature and fuel quantity gages in both our 1975 Darts. I have not yet tried adjusting the screw setting on the stock IVR just to see what the effect will be. I know that it just adjusts to points inside, so trial and error is the plan. But troubleshooting these low readings are driving me nuts. P

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"Louise", a 1976 Dart Custom project, (now sadly reverted to being just an "organ donor" to our other project Darts.)