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ECU family · Tractor, Construction

PHOENIX L21 — Stage 1 Solutions

The PHOENIX L21 ECU is used in tractor, construction vehicles from brands such as CLAAS, JOHN DEERE, LIEBHERR, MANITOU. The EcuPrime library holds verified solution files for this ECU family.

Free pre-checkECU identification and applicable operations without credits
Credit only on successNo charge if it fails
Byte-level checksUnverified results are labelled
PrimeChecksumbuilt-in checksum engine

Performance

Typical Stage 1 gains

+15–25%power gain
+20–30%torque gain
Diesel (heavy-duty)engine type

Typical range; the exact figure depends on the vehicle's hardware and the file. Compatibility is measured at hex level when you upload it.

Operations

Available operations for this ECU

Operations

PHOENIX L21 operations in detail

Brands

Brands using this ECU

JOHN DEERETractor · Stage 1CLAASTractor · Stage 1
LIEBHERRConstruction · —
MANITOUConstruction · —

Flow

How it works

Upload

Upload your original ECU file

Select

The system detects the ECU from the file and enables only genuinely applicable solutions

Process

The solution is verified at hex level and applied

Download & Checksum

Credit is charged only on successful delivery. The checksum is corrected in a separate tab with the built-in PrimeChecksum.

Missing the operation you need? Leave a request

Brand and ECU are pre-filled; add the missing operation as a note. The most requested ECUs get solutions first. Leave an email and we will let you know when the solution is added.

Upload your file for free — see which operations work

Explore

Related ECU families

Help

Frequently asked questions

Can Stage 1 be done on PHOENIX L21?

Yes. The EcuPrime library has a verified Stage 1 solution for PHOENIX L21. When you upload your original file, compatibility is measured at hex level.

Can DPF Off be done on PHOENIX L21?

There is currently no verified DPF Off solution for PHOENIX L21 in the library. You can upload your file and leave a request; we notify you when it is added.

Which brands use the PHOENIX L21 ECU?

JOHN DEERE, CLAAS, LIEBHERR, MANITOU, in tractor, construction vehicles. The links in the brand table lead to each brand's own list of operations.

How many credits does a PHOENIX L21 job cost?

A module job costs 1 credit and Stage 1 costs 3 credits; no credit is charged if no result is delivered. Stage 1 + 1 module costs 4 credits; each further module +1 credit.

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