# NHTSA Preliminary Evaluation PE91030
> **UNSTABLE HIGH ENGINE IDLE** · Opened 1991-01-14 · Closed 1991-05-31
## Investigation
- **Action number:** PE91030
- **Type:** Preliminary Evaluation
- **Open date:** 1991-01-14
- **Close date:** 1991-05-31
- **Manufacturer:** Volkswagen Group of America, Inc.
- **Affected makes:** VOLKSWAGEN
- **Affected components:** ENGINE AND ENGINE COOLING
- **Affected model years:** 1990
- **Affected (make, year) variants:** 1
## Summary

There is no summary currently available

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE91030)
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