Diagnostic Aids

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

After starting a cold engine, the fuel temperature should be within a few degrees of the intake air temperature (IAT) sensor.
Use the Temperature vs. Resistance table in order to test the fuel temperature sensor at various temperature levels in order to evaluate the possibility of a skewed sensor. A skewed sensor could result in poor driveability concerns.
If the condition is suspected of being an intermittent, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.