Power Vision AutoTune Error Message Descriptions

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Below are the descriptions of some of the error messages you might see in your AutoTune device.
   
No Connection:  The ECM is not responding.
AE:  The ECM is using acceleration enrichment tables.
ET:!  The engine temperature is not reading.
ET:H  The engine temperature is too high.
ET:L  The engine temperature is too low.
MAP:L  The map sensor is reading too low (usually deceleration). Map <20 KPA.
NBF:!  The OEM narrowband sensor (front) is not ready.
NBF:O  The OEM narrowband sensor (front) in open loop.
NBR:!  The OEM narrowband sensor (rear) is not ready.
NBR:O  The OEM narrowband sensor (rear) in open loop.
RPM:!  The engine speed is not reading.
RPM:H  The engine speed is too high.
RPM:L  The engine speed is too low.
VE:!  Unable to match current conditions to a VE table cell.
VE:+  The conditions are changing too rapidly or moving between VE table cells.
WARMUP:  The ECM is still using warm up tables.
WBF:!  The Wideband O2 sensor (front) is not ready.
WBF:H  The Wideband O2 sensor (front) too high (over lambda 1.22). This is usually during heavy deceleration.
WBF:L  The Wideband O2 sensor (front) too low (less than lambda 0.68). This is usually during warm up.
WBR:!  The Wideband O2 sensor (rear) is not ready.
WBR:H  The Wideband O2 sensor (rear) too high (over lambda 1.22). This is usually during heavy deceleration.
WBR:L  The Wideband O2 sensor (rear) too low (less thanlambda 0.68). This is usually during warm up.

 For additional AutoTune resources -- including manuals, software and firmware downloads, please visit our Downloads Center. And if you need additional help, please feel free to contact us.

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