My van has trouble starting when warm.The fuel mixture is too rich.I have to depress the gas pedal to open the throttle plate to get enough air so it will start.After it starts it stumbles for a few seconds until it clears the over-rich condition and then it runs perfectly.
1990 2.1L WBXManual TransmissionShoebox Electronix 8691V ECU MonitorGood BatteryGood StarterGood Cranking SpeedGood GroundsNew Fuel Lines and HosesGood Cold Starting (Starts Immediately)No Other Running or Performance Problems.Swapped out the Oxygen Sensor with a known good one.New Air Filter.New Fuel InjectorsNew Fuel Injection Temperature SensorNew Air Temperature SensorNew Throttle Position SwitchPer Bentley 24.55, the Fuel Pressure Regulator works correctly.But....The residual fuel pressure test was unsatisfactory until I clamped off the fuel injector hoses.The new fuel injectors behave the same.
I'm looking for guidance.Thanks Mike Magnani