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Does tuning chip damage diesel engine?

Updated: 10/21/2022
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13y ago

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Older diesel tuning chips and external diesel tuning boxes used a simple resistor to fool then engine into increasing fuel/air mix and/or fuel pressure. It was possible for them to damage the engine, but creating poor idling and smoke was more likely.

Modern diesel tuning boxes and tuning chips are much more sophisticated, adjusting multiple parameters and varying by revs and load, so are much less likely to cause problems once set correctly.

The only issues now seen is highlighting a pre-existing weakness. The increased power output puts added power through the transmission, and increased pressures can blow seals that were in poor condition.

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Q: Does tuning chip damage diesel engine?
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