Electrical & Sensors

Welcome to the Electrical & Sensors section. Modern engines rely on a complex “nervous system” of wires. A single failing sensor can cause a “no-start” nightmare. I help you demystify these electronic components. We translate confusing OBD-II fault codes into real repairs. Learn how to test O2 sensors, MAF sensors, and wiring harnesses. Stop guessing and stop overpaying for parts. Use these diagnostic guides to find the root cause of your “Check Engine” light.

Electric Cooling Fan – What Can Stop It From Working Properly

03/04/2024

Is your engine is overheating, or shows signs of running hotter than normal. Then, you may have a problem, with your electric cooling fan. Electric cooling fans are used, to move air through the radiator, […]

Starter Problems – Funny Sounds, No Sounds, What Do You Hear

02/26/2024

What if your engine is cranking as usual, but refuses to start. You’re likely dealing with an ignition or fuel system issue, not starter problems. If you don’t know anything about starter problems, then it’s […]

Crankshaft – Camshaft Position Sensor – Testing The Easy Way

02/19/2024

When a Crankshaft – Camshaft Position Sensor goes BAD, your vehicle will not start. Distributorless Ignition Systems (DIS) require a Crankshaft Position Sensor (CKP), and sometimes a Camshaft Position Sensor (CMP). So, the main difference […]

No Spark – When Your Engine Cranks, But Has No Spark

02/16/2024

When your engine cranks, but fails to start, it could be, because of no spark. No spark, is one of the most common reasons, why your engine will not start. If your engine has no spark, […]

Position Sensors - Crankshaft and Camshaft - Major Failure Signs

Position Sensors: CKP, CMP, Function and Failure Symptoms

02/09/2024

The most important sensors, in any engine, are the crankshaft and camshaft position sensors. Modern computer controlled vehicles, must have the air and fuel ignited, at the proper time, in order to operate efficiently. Both, […]

Automatic Shutdown (ASD) Relay – Function – Failure – Testing

01/22/2024

The function of the automatic shutdown (ASD) relay, is to shut off power to major systems. When the key is turned off, as a safety feature. So, when the automatic shutdown (ASD) relay is on. […]

Crankshaft Position Sensors – Function, Failure, Diagnosis, Testing

01/18/2024

Crankshaft position sensors, produce a signal, that talks to the engine control module (ECM) / engine control unit (ECU). Consequently, providing the exact position of the crankshaft, as it rotates in the engine. So, now […]

OBD1 – Trouble Code Information, For Honda 95 & Earlier Models

01/11/2024

So, it’s the weekend, you’re out enjoying the open road. And, WHAM, your OBD1 “Check Engine” light rears its ugly head. Now, you are wondering, what is wrong with the engine? So, all you need […]

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