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Your vehicle’s electrical system is every bit as important as its mechanical components. That electrical system centers on the Cummins wiring harness, which distributes power where it’s needed and conveys information between components. The harness itself keeps things tidy and organized, though it will degrade over time. +Read more
Rodents like rats or squirrels have been known to gnaw on wiring harnesses, which can also cause issues. Damage to the wiring harness can result in power loss or shorts within the vehicle, which can manifest as other components not working or malfunctioning during use. Wire harnesses can often be repaired, but sometimes, a replacement is warranted.
The sensors wired into your vehicle all perform vital jobs, many of which are essential to engine function. One such sensor is the Cummins fuel rail pressure sensor, which ensures the fuel rail is operating properly and has enough fuel at the right pressure to supply the engine. A good 24V Cummins fuel pressure gauge kit can contain parts like a new fuel rail pressure sensor and other components that can be used to refurbish the fuel pressure sensing system.
A 5.9 Cummins MAP sensor serves a similar role, but it conveys information about the vehicle’s intake manifold. An issue with either of these sensors may impact engine efficiency as a correct air-fuel mixture is vital to engine performance. A faulty 24V Cummins MAP sensor should be replaced, as, at best, it will burn fuel at a less-than-optimal rate, and at worst, engine performance will be severely compromised.
Something like a Cummins IAT sensor can also have a major impact. The IAT sensor 5.9 Cummins reports the intake air temperature to the engine control module. As colder air is denser, the air’s temperature can impact the air-fuel mix and is something the vehicle’s onboard computer takes into account. Other sources of information include the 5.9 Cummins apps sensor, which reports the vehicle’s accelerator position, which is then used to provide the appropriate throttle response.
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