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Shop Work , ECU , Buyer's Guide , GRM+
How to make the move to an aftermarket ECU

When you’ve gone a bit custom, you might well benefit from a standalone ECU.

Shop Work | ECU | electronics | GRM+
5 questions to ask yourself before switching to a standalone ECU

Think it’s time to control your car with a laptop? First, a few questions to ask.

J.G. Pasterjak
DIY | Wiring | Restoration | Project car
How to wire a car from scratch

Wiring a car from scratch doesn’t have to be a daunting project.

Carl Heideman
electrical | Wiring | electronics | How To
How to transform a rat’s nest of wiring into an orderly harness

Instead of just ignoring that wiring mess, some methodical work can deliver OE levels of organization.

Carl Heideman
BMW | Restoration | troubleshooting | Project car
Troubleshooting 101: Basic steps when your car won't start

Sometimes a simple, methodical approach can bring that dead car back to life.

Guest Writer
electrical | Restoration | electrical problems
How to easily diagnose common automotive electrical problems

Have some spark outside of your engine block? Here's how to fix that.

Carl Heideman
electrical | Restoration | electrical problems | Shop Work | GRM+
How to solve common electrical issues with only a test light

In building the Miata-powered MGB GT pictured, we mated the MG’s wiring harness to the Miata’s engine-management loom using nothing more than a test light.

Carl Heideman
Mazda | Miata | Shop Work | NA | Tune up
How to properly tune an engine

It doesn't take much for a well-running engine to suddenly need a tune-up. Here are 10 steps to find and diagnose that problem.

Carl Heideman
Miata | mgb | Wiring | Engine swap | Swap Science
How to wire a cross-pollinated engine swap | Swap Science

Here’s how we mated two totally different wiring harnesses to make one functioning car–and how you can do it, too.

Carl Heideman
Lincoln
Trial By Wire: Creating You Car's Electrical System From Scratch

Building circuits may be intimidating, but with a little careful planning, running wires will quickly feel as familiar as changing a ball joint.

Staff Writer
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