LEMON Manuals
: Even more car manuals for everyone
Home
>>
Cadillac
>>
1990
>>
Seville Base, 440T4/ME9
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls - Tests W/Codes
>>
ECM Trouble Code Charts
>>
ECM Code EO23, Est Circuit Problem
>>
Failure Conditions (Run):
Failure Conditions (Run):
No EST pulses being detected on circuit No. 423.