Jac T6 2.0 CTI 139 hp — Stage 1 file

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Chip tuning for Jac T6 2.0 CTI 139 hp ECU

Jac T6 (2015) 2.0 CTI 139 hp — mass-market diesel engine of the passenger segment of the Anhui Jianghuai Automobile group (Китай, 1964). A diesel built in 2015 — the Tricore ECU era; OBD flash works on most production revisions.

JAC is a Chinese carmaker, founded in 1964. JAC focuses on the mass market — saloons, crossovers and SUVs. JAC is a Chinese manufacturer of passenger and commercial vehicles. DPF/SCR is standard on modern diesel models. Mid-range diesels see a modest gain from Stage 1. JAC runs mostly petrol engines; diesels are rare in the current range.

The JAC community in China and the CIS is a growing chip tuning market. Mid-range JAC — a high-volume chip tuning subject in a growing market.

Frequently asked questions

What changes in the Jac T6 ECU after Stage 1?

Stage 1 is a software optimization of the factory ECU firmware of the Jac T6 with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed.

What is the risk of Stage 1 on the Jac T6 2.0 CTI 139 hp?

A remap of the Jac T6 2.0 CTI 139 hp is safe — the factory calibration in this mid-range class is conservative, leaving genuine headroom for Stage 1 with no hardware changes.

What is Stage 2 for the Jac T6 2.0 CTI 139 hp?

Stage 2 for the Jac T6 2.0 CTI 139 hp is Stage 1 plus hardware changes: a downpipe, a larger intake and a performance intercooler. The gain is considerably higher, but it requires professional component selection.

Does the factory warranty of the Jac T6 remain valid after Stage 1?

After remapping the Jac T6, the official factory warranty on the engine and gearbox is lost (this applies to any manufacturer when the ECU is modified). CHIPOK guarantees the quality of the calibration and free revisions.

How long is the wait for a Stage 1 remap for the Jac T6?

Reading and writing via OBD takes 25-30 minutes on the Jac T6. Bench reading (BDM/JTAG) takes about 60 minutes plus refitting. Remote file processing at CHIPOK takes 5-30 minutes.

How do you roll back to the factory firmware of the Jac T6?

Before Stage 1 the original of the Jac T6 2.0 CTI 139 hp is read out and saved — returning to the factory state is possible at any time.

How much does chip tuning the Jac T6 2.0 CTI 139 hp cost?

The remap price for the Jac T6 2.0 CTI 139 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.

Last updated: 31.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno