Description
L5P Can Bus Plugs for 2020-2022 Duramax 6.6L L5P — DPF/DEF Delete Connectors
The iFJF L5P Can Bus Plugs are designed specifically for 2020-2022 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD with the 6.6L L5P Duramax diesel engine. These plugs replace the NOx sensor and DEF module harness connections when running aftermarket exhaust configurations, providing proper closed-loop signal communication to the ECM.
Key Features
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2020-2022 Specific: Correct connector pinout for the updated L5P platform
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Used with Aftermarket Exhaust: Designed for use with delete pipes or aftermarket exhaust systems
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Replaces NOx & DEF Module Connectors: Plugs into factory harness in place of NOx and DEF modules
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Closed Signal Loop: Provides proper resistance values for accurate ECM communication
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Durable Construction: Automotive-grade materials for long-term reliability
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Simple Installation: Unplug factory connectors, plug in — no cutting or splicing
Compatibility
| Year |
Make |
Model |
Engine |
| 2020-2022 |
Chevrolet |
Silverado 2500HD / 3500HD |
6.6L L5P Duramax |
| 2020-2022 |
GMC |
Sierra 2500HD / 3500HD |
6.6L L5P Duramax |
Technical Specifications
| Specification |
Detail |
| Connector Type |
OEM-Compatible Pin Layout (2020-2022 L5P) |
| Application |
DPF/DEF System Bypass |
| Signal Type |
Closed-Loop Resistance |
| Installation |
Plug-and-Play (No Tuning Required for Signal) |
Why Choose iFJF 2020-2022 L5P Plugs?
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Correct Pinout: Unlike generic connectors, these are pinned specifically for the 2020-2022 L5P ECM architecture
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Tested & Verified: Each set is tested for correct resistance values before shipping
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Complete Set: All required plugs included — no need to source additional connectors
Frequently Asked Questions
Q: Will these work on my 2019 L5P?
A: No, these are for 2020-2022 L5P models only. The 2017-2019 L5P uses a different ECM architecture and connector pinout. Please see our 2017-2019 version.
Q: Do I need to tune my truck after installing these?
A: These plugs handle the signal loop, but aftermarket tuning is still required to optimize engine parameters for aftermarket exhaust configurations.
Q: Are these weatherproof?
A: Yes, the connectors feature sealed housings to protect against moisture, road grime, and vibration.
Q: What's included in the package?
A: Complete set of CAN bus plugs for the NOx sensors and DEF module connections. Quantity varies by configuration.
Q: How do I know which connectors go where?
A: Each plug is labeled for its corresponding sensor position. Detailed installation diagram included.
