Volkswagen Golf with a weird misfire complaint

What’s the problem?

This VW Golf 1.2 TSI is experiencing a definite misfire under load. The customer reports that the ignition coil and spark plug leads have recently been replaced. Curiously, the misfire seemed to decrease after the number four spark plug lead was swapped back to one of the original components. This raises a few questions: Are we dealing with a faulty new part, or was the original issue misdiagnosed?

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Suzuki Splash – Diagnosing Intermittent Misfires With No DTC’s

What’s the problem?

This Suzuki came into the workshop with an intermittent misfire. It wasn’t evident on tickover or when I’d snap the throttle while stationary. But when I drove it any distance, I could feel it. Okay, so that’s the customer’s complaint confirmed. The next step was to connect a scan tool and check for diagnostic trouble codes (DTCs).

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VW Passat: When lights are out, It’s not always just a bulb

What’s the problem?

A Volkswagen Passat came in with a warning light on for a bulb out and a non-functional Daytime Running Light (DRL) system. The customer had already replaced the bulbs, but it hadn’t made a difference. The only other information we had was that the car had been in a minor accident with some light panel work done, but the warning lights didn’t appear until well after the repairs

Wiring loom worn with wires exposed showing corrosion
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