# Service bulletin C1990A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10249560
- Published by NHTSA: 2024\-02\-02
- Manufacturer's number: C1990A
- Manufacturer's date: 2024\-01\-16
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Campaign is being issued to address a calibration update in certain ISL G CM2180 engines. This document enables authorized repair locations to calibrate the engine control module \(ECM\) to the latest revision available on QuickServe® Online. The new calibration may improve engine performance, and reduce the occurrence of fuel pressure controller and fuel control valve failures.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249560-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249560-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- CUMMINS ISL

JSON: [/v1/bulletins/10249560](/v1/bulletins/10249560)

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