# Service bulletin ENP\-661

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: 10131590
- Published by NHTSA: 2018\-04\-02
- Manufacturer's number: ENP\-661
- Manufacturer's date: 2018\-02\-23
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

This Service Bulletin is a supplement to the safe venting \(defueling\) guidelines in the Agility Fuel Solutions publication ENP\-391 specific to systems equipped with the OMB ESA 24V solenoid valve that is NOT equipped with an excess flow device. The ESA valve includes a feature that acts as an excess flow valve. When defueling, the solenoid valve coil must be continuously energized during the defueling process.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10131590-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10131590-0001.pdf)

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

## Components

Electrical system

## Vehicles listed

- AGILITY FUEL SYSTEMS CNG FUEL SYSTEM

JSON: [/v1/bulletins/10131590](/v1/bulletins/10131590)

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