LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Oldsmobile
>>
1985
>>
Calais Base, 2.5 U, Standard
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Fuel Injection System - PFI
>>
Trouble Shooting
>>
ECM Trouble Codes
>>
Code 21
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Code 21
Throttle position sensor reading too high.