# P0421 on the 1996 Ford Probe

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0421

- [607416](https://open.wenmarpro.com/bulletins/607416), 1999-09-22: SOME VEHICLES WITH A P0421 CODE STORED IN THE POWERTRAIN CONTROL MODULE \(PCM\) MAY NOT BE ABLE TO IDENTIFY THE CALIBRATION WHEN REPROGRAMMING. \*AK
- [51824](https://open.wenmarpro.com/bulletins/51824), 1997-07-17: MIL CODE \- P0421 \- DO NOT ATTEMPT REPAIRS. \*TW
- [51709](https://open.wenmarpro.com/bulletins/51709), 1997-06-27: 2.0L WITH THE MIL ON AND CODE P0421. \*JD