Hard Start - Hot
- Inoperative ISC motor. EEC-IV diagnosis required. TPS stuck at WOT. EEC-IV diagnosis required. Injector leaking or inoperative. Check for fuel discharge while cranking engine.
- Excessive fuel pressure. Service pressure regulator and fuel return line. Contaminated fuel pressure regulator valve and seat. Service pressure regulator or check fuel pressure bleed down after engine has been turned off. Injector "O" ring seal leaking. Perform injector leakage test.