# Service bulletin 26E1

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: 10240597
- Published by NHTSA: 2023\-08\-14
- Manufacturer's number: 26E1
- Manufacturer's date: 2013\-09\-18
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; UNKNOWN OR OTHER

## NHTSA's summary

1999\-2002 Jetta, Golf and GTI with VR6 Engine Update ECM Software for Catalytic Converter Monitoring System.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10240597-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10240597-9999.pdf)

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

## Components

Engine, Exhaust and emissions, Catalytic converter, Engine control module

## Vehicles listed

- 1999 to 2002 VOLKSWAGEN GOLF
- 1999 to 2002 VOLKSWAGEN GTI
- 1999 to 2002 VOLKSWAGEN JETTA

## Other bulletins for the same vehicles and component

- [Guide](/bulletins/10240605.md), 2023-08-14, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). P0102, P1128, P1296 \- WA front oxygen sensor faults
- [WA00](/bulletins/10240604.md), 2023-08-14, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:HOSES/VALVES/SENSORS. Emissions Recall Circular \- 1999\-2001 Volkswagen Folf/Jetta and New Beetle 2.0 Liter Gasoline Engine Vehicles Reprogramming of Engine Control Module and Replacement of Malfunctioning Oxygen Sensor
- [TT201301a](/bulletins/10238960.md), 2023-07-10, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); FUEL SYSTEM, OTHER. To clear static ECM fault P1250 ?Fuel Level Too Low?, add fuel to vehicle and complete a road test of at least 10 miles. Simply adding fuel without completing a road test may not allow fault to clear.
- [TT201301](/bulletins/10238959.md), 2023-07-10, Service bulletin: FUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); UNKNOWN OR OTHER. To clear static ECM fault P1250 ?Fuel Level Too Low?, add fuel to vehicle and complete a road test of at least 10 miles. Simply adding fuel without completing a road test may not allow fault to clear.
- [ESA\-26E1](/bulletins/10054864.md), 2014-03-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. VOLKSWAGEN: THE CATALYTIC CONVERTER MONITORING SYSTEM, WITH THE ECM SOFTWARE, IS TOO SENSITIVE AND CAUSES THE MALFUNCTION INDICATOR LAMP \(MIL\) TO COME ON AND EXCEED EMISSIONS STANDARDS FOR FEDERAL AND/OR CALIFORNIA. MODEL 1999\-2002 JETTA, GOLF, GTI. \*PE

JSON: [/v1/bulletins/10240597](/v1/bulletins/10240597)

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