ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5E-12190-823225--1 1096
HESITATION, SAG OR STUMBLE
Definition: Momentary lack of response as the throttle is opened. Can occur at all engine speeds.
May cause engine to stall if severe enough.
PRELIMINARY CHECKS
Perform the visual/physical checks as described at the start of “Troubleshooting Charts” section.
CHECK FUEL SYSTEM FOR:
1. Water contaminated fuel and dirty or restricted fuel filter.
2. Fuel pressure within specification.
3. Proper functioning of fuel injectors.
4. Worn throttle linkage.
CHECK IGNITION SYSTEM FOR:
1. Ignition Control (IC) system for proper timing and advancing.
2. Faulty spark plug wires, fouled or improperly gapped spark plugs.
3. Power reduction mode activated (if equipped).
4. Knock Sensor (KS) system operational.
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