What is the purpose of the cold start injector?
The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles. It’s purpose is to supply the engine with additional fuel to enrich the fuel mixture in cold temperatures where air density is increased…
What do you call the cold start valve?
The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles.
How to replace the star injector time switch?
To replace the star injector time switch, drain the coolant, unplug the switch electrical connector and unscrew the switch. Be sure to coat the threads of the new switch with Teflon tape to prevent leaks.
How do you unbolt a cold start injector?
Remove the plenum. Unscrew the fitted end of the cold start tube from the fuel rail. Unbolt the cold start injector from the intake manifold. (Small bolt, about 8-10mm in size) It is probably easiest to pull the injector out of the manifold first, and then lift up to pull the tube out of the rail.
How does the cold start injector and time switch work?
That why we decided to show you how to test both your Cold Start Injector and your Cold Start Time Switch (this switch tells the injector when to spray that extra fuel in order to make it easier to start your vehicle on colder weather) this way you could get rid of your every morning starting problems.
Where is the cold start injector in the intake manifold?
The Cold Start Injector is the responsible for supplying more fuel into the intake manifold for an easier start on cold temperatures. It is located in the middle of the upper intake manifold plenum.
When to use the cold start injector in a Pontiac?
PONTIAC SERVICE MANUAL: “The cold start valve is used to provide additional fuel during the crank mode to improve cold start-ups. This circuit is important, when engine coolant temperature is low, because the other injectors are not pulsed “on” long enough to provide the needed amount of fuel to start.
Can a cold start injector be replaced with a thermo time switch?
If not, check for voltage at each of the two terminals on the injector with the starter activated. If one terminal has voltage but the other doesn’t, replace the cold-start injector. If both terminals have voltage, check the wiring between the cold-start injector and the thermo-time switch. If the wiring is OK, replace the switch.
What should I do about my Bosch cold start injector?
If both terminals have voltage, check the wiring between the cold-start injector and the thermo-time switch. If the wiring is OK, replace the switch. If neither terminal has voltage, repair the wiring harness between the starter solenoid and the cold-start injector.
Why is there no voltage to the cold start valve?
Sure enough Cold start Valve wasn’t pumping any fuel (this is while cranking the car over), and then when I hooked up my Multi-meter I didn’t get any Voltage outta the plug for the cold start either? Any ideas? What was the coolant temperature?
The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles. It’s purpose is to supply the engine with additional fuel to enrich the fuel mixture in cold temperatures where air density is increased…
Sure enough Cold start Valve wasn’t pumping any fuel (this is while cranking the car over), and then when I hooked up my Multi-meter I didn’t get any Voltage outta the plug for the cold start either? Any ideas? What was the coolant temperature?
What should the voltage be on a fuel injector?
The wiring harness will have two terminals that the prongs on the injector insert into. One will be connected to ground and will read 0 volts. The other should read around 12 volts. Step 5: Repeat with all injector wiring harnesses. Leave the ground lead in position and test all of your injector wiring harnesses. They should all be around 12 volts.
How does the cold start valve work in a Mercedes Benz?
When the cold start valve opens, the pressure above the control plunger is reduced. This also enriches the mixture from the main fuel injectors because the plunger can move farther for the same air flow, allowing the air flow plate to displace farther, and allowing more fuel to flow from the main injectors for the same airflow.
The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles.
When to replace the fuel filter and accumulator?
This project details the replacement of both the fuel filter and the fuel accumulator. For the early cars (1965-early 1973) and the late-style Carrera (1984-89), you only need to be concerned about replacing the fuel filter.
Can a faulty fuel filter cause a 911 to warm up?
Place one wrench on the filter, and the other on the line. Using this method will reduce the probability that you might damage one of the lines, or the accumulator. Sometimes a faulty fuel accumulator will cause various warm-start problems on the CIS-equipped 911.
What does fuel injection mean in Chevy Hilborn?
FUEL INJECTION,WIRING HARNESSES,TPI, Fuel Injection, Chevy TPI ,G Body, TBI, Astro Van V8, Hilborn, Hilborn Conversions, Parts ,transmissions, Vehicle Speed Sensors, fuel injected engines! Jims Performance Telephone – 410-465-9569
To replace the star injector time switch, drain the coolant, unplug the switch electrical connector and unscrew the switch. Be sure to coat the threads of the new switch with Teflon tape to prevent leaks.