Home › Injector coding › 2018+ Jeep Wrangler JL

Jeep Wrangler JL Injector Coding Scan Tool (2018+)

Quick answer: Cheapest verified tool for Injector Coding on the 2018+ Jeep Wrangler JL: Foxwell NT809 at $359 (cited 2026-10-16). Most verified jobs on this vehicle: Autel MaxiCOM MK808S, with 4 of 8 (tied with Autel MaxiCheck MX900). Still unverified: 6 of 13 tools for this job here. Unverified is not the same as unsupported.

Enter injector trim/IQA codes after replacing diesel injectors.

For injector coding on the 2018+ Jeep Wrangler JL, 7 tools we track are confirmed in maker coverage lists (1 only partially).

Autel MaxiCOM MK808S lists it as “Injector quantity adjustment” (Above JEEP_V3.00), checked against model year 2019. Note: engine caveat: likely applies only to the 3.0L EcoDiesel (unconfirmed, the maker list doesn't specify engine).

Foxwell NT809 lists it as “INJECTOR (service function)” (V1.48.001 or higher), checked against model year 2018. Note: diesel (EcoDiesel) only.

Autel MaxiSys MS906 Pro lists it as “Injector quantity adjustment” (Above JEEP_V6.80), checked against model year 2019. Note: engine caveat: Injector quantity adjustment likely applies only to the 3.0L EcoDiesel.

Autel MaxiSys MS908S3 lists it as “Injector quantity adjustment” (Above JEEP_V6.80), checked against model year 2019. Note: engine caveat: Injector quantity adjustment likely applies only to the 3.0L EcoDiesel.

Autel MaxiCheck MX900 lists it as “Injector quantity adjustment” (Above JEEP_V3.00), checked against model year 2019. Note: engine caveat: Injector quantity adjustment likely applies only to the 3.0L EcoDiesel.

Launch X-431 PRO lists it as “Injector Quantity Adjustment (PCM)” (JEEP V35.60), checked against model year 2019. Note: engine caveat: Injector Quantity Adjustment likely applies only to the 3.0L EcoDiesel.

TOPDON Phoenix Lite 2 lists it as “Injector Adaptation”, checked against model year 2019; marked partial. Note: engine caveat: likely 3.0L EcoDiesel only, unconfirmed.

The other 6 tools are not yet verified for this job on this vehicle, which is not the same as unsupported.

7 of 13 tools verified for this job from maker coverage lists. Other tools are not yet verified (that is not a "no").
ToolStatusSourceChecked
Autel MaxiCOM MK808S✓ SupportedMaker list ↗2026-10-16
“Injector quantity adjustment” · Above JEEP_V3.00 · Checked for model year 2019; engine caveat: likely applies only to the 3.0L EcoDiesel (unconfirmed, the maker list doesn't specify engine)
Autel MaxiCheck MX900✓ SupportedMaker list ↗2026-10-17
“Injector quantity adjustment” · Above JEEP_V3.00 · Checked for model year 2019; Autel vehicle coverage, product "MaxiCheck MX900", JEEP > JL-Wrangler > 2019; systems: PCM(Powertrain Control Module); engine caveat: Injector quantity adjustment likely applies only to the 3.0L EcoDiesel
Autel MaxiSys MS908S3✓ SupportedMaker list ↗2026-10-17
“Injector quantity adjustment” · Above JEEP_V6.80 · Checked for model year 2019; Autel vehicle coverage, product "MaxiSys MS908S3", JEEP > JL-Wrangler > 2019; systems: PCM(Powertrain Control Module); engine caveat: Injector quantity adjustment likely applies only to the 3.0L EcoDiesel
Autel MaxiSys MS906 Pro✓ SupportedMaker list ↗2026-10-17
“Injector quantity adjustment” · Above JEEP_V6.80 · Checked for model year 2019; Autel vehicle coverage, product "906Pro (MaxiSys MS906 Pro)", JEEP > JL-Wrangler > 2019; systems: PCM(Powertrain Control Module); engine caveat: Injector quantity adjustment likely applies only to the 3.0L EcoDiesel
TOPDON Phoenix Lite 2◐ PartialMaker list ↗2026-10-16
“Injector Adaptation” · Checked for model year 2019; version not listed by TOPDON; module: PCM; engine caveat: likely 3.0L EcoDiesel only, unconfirmed
Launch X-431 PRO✓ SupportedMaker list ↗2026-10-17
“Injector Quantity Adjustment (PCM)” · JEEP V35.60 · Checked for model year 2019; path: qcar: North America > Professional diagnostic > X-431 PRO > Jeep > Wrangler(JL)(SGW) > 2019 > Special Function; engine caveat: Injector Quantity Adjustment likely applies only to the 3.0L EcoDiesel
Foxwell NT809✓ SupportedMaker list ↗2026-10-17
“INJECTOR (service function)” · V1.48.001 or higher · Checked for model year 2018; Foxwell NT809 service-function list, DODGE software, listed as JL-Wrangler 2018; diesel (EcoDiesel) only; Foxwell names only the service category, not a sub-function

Cheapest scan tool for injector coding on the 2018+ Jeep Wrangler JL

5 tools are listed as Supported (not just partial) for injector coding on this vehicle and have a cited price. Cheapest first:

#ToolPriceMaker's function name
1Foxwell NT809$359 · cited 2026-10-16“INJECTOR (service function)”
2Autel MaxiCOM MK808S$479 · cited 2026-10-16“Injector quantity adjustment”
3Autel MaxiCheck MX900$559 · cited 2026-10-16“Injector quantity adjustment”
4Launch X-431 PROMSRP $1,364.07 · cited 2026-10-16“Injector Quantity Adjustment (PCM)”
5Autel MaxiSys MS906 Pro$1,569 · cited 2026-10-16“Injector quantity adjustment”

Foxwell NT809 is $120 cheaper than the next Supported option. Prices are cited list prices and change often; partial and unverified tools are left out of this ranking.

Same tool, other Jeep vehicles: Autel MaxiCOM MK808S injector coding on Jeep · TOPDON Phoenix Lite 2 injector coding on Jeep · Launch X-431 PRO injector coding on Jeep · Foxwell NT809 injector coding on Jeep

Not yet verified (6): Autel MaxiSys MS980, TOPDON ArtiDiag900 Lite, Launch X431 CRP919 Max, Launch X431 PROS, XTOOL D7, XTOOL D8. Not yet verified is not the same as unsupported.

Head-to-head for this job: Autel MaxiCOM MK808S vs Autel MaxiSys MS906 Pro · Autel MaxiCOM MK808S vs Launch X-431 PRO · Autel MaxiCOM MK808S vs TOPDON Phoenix Lite 2 · Autel MaxiSys MS906 Pro vs Launch X-431 PRO

Quoting injector coding on a Wrangler JL for a customer? Free labor quote calculator · estimate & invoice generator · more shop calculators.

Get told when Jeep Wrangler JL coverage changes

One short email a week with newly verified tool results (including this vehicle), firmware changes that add or remove functions, and scanner deals. Free, unsubscribe anytime.

The 2018+ Jeep Wrangler JL at a glance

Verified tools per job on this vehicle: EPB Reset: 0 · ABS Bleed: 6 · Injector Coding: 7 · Secure Gateway Unlock: 0 · TPMS Relearn: 6 · Steering Angle Calibration: 0 · Battery Registration: 0 · Throttle Relearn: 7.

Best scan tool for the 2018+ Jeep Wrangler JL → · Injector coding scan tool hub

Injector Coding on other Jeep vehicles

2018+ Jeep Grand Cherokee (7 verified) · 2014-2023 Jeep Cherokee KL (6 verified) · 2020+ Jeep Gladiator (6 verified)

Which scan tool does Injector Coding on Jeep? →

Most-verified elsewhere: 2019+ Chevrolet Silverado 1500 (7) · 2019+ Ram 1500 (7) · 2018+ Chevrolet Equinox (7) · 2015-2022 Chevrolet Colorado (7) · 2019+ GMC Sierra 1500 (7) · 2019-2024 Subaru Forester (7) · all vehicles

Other jobs on the 2018+ Jeep Wrangler JL

EPB service / reset · ABS bleed · FCA Secure Gateway access · TPMS relearn · Steering angle calibration · Battery registration (BMS) · Throttle / idle relearn

Related guides