P0121

Tests 165 - 168:

Tests 169 - 172:

Test 173:

SYMPTOM
P-0121 TPS VOLTAGE DOES NOT AGREE WITH MAP (GAS)

WHEN MONITORED
With the engine running and no MAP sensor or TP sensor trouble codes.

SET CONDITION
Engine speed must be greater than 1600 RPM for all TPS testing.

POSSIBLE CAUSES
- MAP sensor trouble code present
- Throttle position sensor connector observable defect
- TPS 5-volt supply circuit open
- TPS harness or connectors intermittent defect
- TPS voltage change not smooth
- TPS voltage above 1.0 volt
- TPS voltage above 3.5 volts