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What Is A Modulator Valve And Why Is It Important ...
https://parts.olathetoyota.com/blog/modulator-valve-explained
A modulator valve is a small vacuum-operated valve that mounts to the case of an automatic transmission. It contains several components: Throttle valve (it throttles transmission fluid) Pushrod ; Spring ; Diaphragm ; When you drive a manual transmission, you’re responsible for shifting gears. When you drive an automatic transmission, the modulator valve is responsible …
Intake manifold pulsation (ignition triggered) - cranking
https://www.picoauto.com/library/automotive-guided-tests/inlet-manifold-vacuum-vs-ignition/
Find the corresponding cylinder number one intake pulse. Mark the remaining pulsations in engine firing order, relative to the cylinder number one pulse. Causes of waveform anomalies. Intake-related faults which may cause waveform anomalies are: General intake leaks, manifold cracks, gaskets etc. Burnt valves/seats. Valve not closing. Valve not ...
Modulating Control Valves - How They Work
https://assuredautomation.com/modulating-control-valves/
A modulating control valve is an automated valve that is used to control the amount of flow in a system or process. They go beyond simple shutoff or isolation (on/off) and actually allow precise control of the flow rate. The actuators on these valves use feedback and control signals to accurately open and close the valve.
US5649687A - Pulse width modulated solenoid purge …
https://patents.google.com/patent/US5649687A/en
A pulse width modulated solenoid purge valve for an on board fuel vapor recovery system of an automotive vehicle is operated by a solenoid that has a pole piece and armature that are shaped to operate at high frequencies. More specifically, the pole piece and the armature have an air gap interface that is defined by a protrusion of one that always intrudes into a recess of the other …
Intake Manifold Runner Valves: What You Need to Know - …
https://www.carparts.com/blog/intake-manifold-runner-valves-what-you-need-to-know/
But now, some vehicles have a variable intake manifold (also known as an intake manifold runner control system). The updated design varies the length of the manifold’s runners with the help of an intake manifold runner control (IMRC) valve. The IMRC valve is the part of the intake manifold system that opens and closes the flaps.
Technical Service Bulletin Audi - National Highway Traffic ...
https://static.nhtsa.gov/odi/tsbs/2016/SB-10093588-0699.pdf
1. Check the intake manifold flap valve N316 with Guided Fault Finding. 2. If the intake manifold flap valve N316 is faulty, replace it with part number 06H 906 283 B. This new valve has an additional connection for the fresh air line (Figure 1). 3. …
Code P0660 , Intake Manifold Tuning Valve Location Needed
https://www.2carpros.com/questions/2007-santa-fe-intake-manifold-tuning-valve
For testing there are a couple of options. Use a VOM to test the resistance of the solenoid it should be between 29 and 35 ohms. Then use the volt meter to check that there is full battery voltage in the connector on the Red wire. The Orange wire goes back to the PCM and is a pulse width modulated ground.
Understanding Intake Manifold Pressure Waveforms ...
https://www.scannerdanner.com/forum/diagnostic-tools-and-techniques/2798-understanding-intake-manifold-pressure-waveforms.html
Red trace is the injector, green trace is the ignition. One can see that the injector usually fires around the time the intake valve starts to open, which is always before TDC. The engine pulls about 20.5 inHg ( -10.5 psi ) at idle. The purple trace is the #1 injector and the firing order is 1-3-4-2.
Intake Manifold Tech: Runner Size Calculations | Team ...
https://www.team-integra.net/threads/intake-manifold-tech-runner-size-calculations.342566/
The trick to resonance (or sound) tuning of the IM is to have these maximally amplified waves arrive at the intake valve just as it opens . The basic mechanism of intake manifold "tuning" or design is to provide high pressure at the intake valve so that the mass flow rate into the cylinder is boosted at a given engine speed or rpm.
Intake Manifold Tuning Valve Stuck Open - GMC Acadia Forum
https://www.acadiaforum.net/threads/code-p2070-intake-manifold-tuning-valve-stuck-open.6644/
When the IMT valve is open, the intake manifold is configured to one large plenum. When the IMT valve is closed, the intake manifold is configured to 2 smaller plenums. The IMT valve improves engine performance at low and high engine speeds depending on the engine load. The IMT valve assembly consists of the following: • A tuning valve
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