To Next PageTo Next PageWhat causes Holley Engine injector to flow fuel when not running?
If the injector flows fuel with the ignition switch in the “RUN” position and the engine not running, it could be due to a poor engine ground wire connection, so clean the ground location and tighten the connection. Alternatively, the fuel injector may be leaky, requiring replacement.
General| Product Line | Pro-Jection |
|---|---|
| ECU | Included |
| Fuel | Gasoline |
| Type | Throttle Body Injection |
| Application | Universal |
| Model | 2D |
| Manufacturer | Holley |
| Compatibility | Universal |
| Fuel Delivery | TBI |
Instructions for fitting the adapter plate to various intake manifold types.
Steps for correctly mounting the throttle body onto the installed adapter plate.
Guidance on connecting throttle cables and linkages to the new throttle body.
Details on mounting and connecting the electric fuel pump as per regulations.
Instructions for installing the fuel filter between the pump and the throttle body.
Explains methods for routing the fuel return line back to the fuel tank or pump.
Guidance on connecting the fuel supply line from the tank to the electric fuel pump.
Procedure for installing the coolant temperature sensor into the engine's manifold.
Adjusting the main fuel delivery across the entire engine operating range.
Adjusting fuel delivery specifically for the engine's idle operation.
Adjusting fuel delivery for engine speeds above 3000 RPM.
Adjusting fuel enrichment for quick acceleration response.
Adjusting fuel enrichment for cold engine starting and warm-up.
Initial tuning of the MAIN adjustment knob for overall fuel delivery.
Adjusting the IDLE knob to achieve smooth engine operation at idle.
Adjusting the ACCEL knob for crisp throttle response during acceleration.
Setting the HIGH RPM knob for optimal fuel delivery at higher engine speeds.
Adjusting the CHOKE knob for proper cold start and warm-up fuel enrichment.
Procedure for adjusting the fuel pressure regulator to the correct operating pressure.
Method for testing the coolant temperature sensor's resistance values.
Procedure for testing the throttle position sensor's voltage output at idle and wide-open throttle.
Guide for evaluating the performance of the oxygen sensor in open and closed-loop modes.
