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Couple PT cruiser questions

 
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Old 30 Mar 2011, 08:07 pm
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Default Couple PT cruiser questions

What type of ignition system does a 2007 PT cruiser employ?

Are the fuel injectors pulsed or continuous?

and are the air cleaners and fuel filters visible?
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Old 30 Mar 2011, 08:23 pm
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Default Re: Couple PT cruiser questions

I can tell you the fuel filter is inside the gas tank with the fuel pump. It doesn't need cleaning.

This is from PT Do-It-Yourself.net:

PT Cruiser 2.4L Engine SMPI System

The PT's 2.4L engine utilizes a Sequential Multi-Port Electronic Fuel Injection system. The SMPI system is computer regulated and provides precise air/fuel ratios for all driving conditions. SMPI systems generally offer smoother performance, more power and improved fuel economy when compared with other fuel injection systems. The PCM operates the fuel injection system, and various sensors and switches provide the inputs necessary for the PCM to correctly operate these systems. The PCM can adapt its programming to meet changing operating conditions.

Fuel is injected into the intake port above the intake valve in precise metered amounts through electrically operated injectors. The PCM fires the injectors in a specific sequence. Under most operating conditions, the PCM maintains an air fuel ratio of 14.7 parts air to 1 part fuel by constantly adjusting injector pulse width.

The fuel injectors are 12v electrical solenoids. The injector contains a pintle (valve) that closes off an orifice at the nozzle end. When electric current is supplied to the injector, the armature and needle move a short distance against a spring, allowing fuel to flow out the orifice. Because the fuel is under high pressure, a fine spray is developed in the shape of a hollow cone or two streams. The spraying action atomizes the fuel, adding it to the air entering the combustion chamber.

Don't know if this will answer you question on the ignition system:

The coil pack consists of 2 coils molded together. High tension leads route to each cylinder from the coil. The coil fires two spark plugs every power stroke. One plug is the cylinder under compression, the other cylinder fires on the exhaust stroke. Coil number one fires cylinders 1 and 4. Coil number two fires cylinders 2 and 3. The PCM determines which of the coils to charge and fire at the correct time. The Auto Shutdown (ASD) relay provides battery voltage to the ignition coil. The PCM provides a ground contact (circuit) for energizing the coil. When the PCM breaks the contact, the energy in the coil primary transfers to the secondary causing the spark. The PCM will de-energize the ASD relay if it does not receive the crankshaft position sensor and camshaft position sensor inputs.
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Last edited by CREWZIN; 30 Mar 2011 at 08:47 pm.
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Old 30 Mar 2011, 08:47 pm
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Exclamation Re: Couple PT cruiser questions

Nostalgic ,why dont you introduce yourself,and welcome to the forum
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Old 30 Mar 2011, 08:51 pm
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Default Re: Couple PT cruiser questions

Thank you for the information! I needed a quick answer!
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Old 30 Mar 2011, 09:11 pm
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Default Re: Couple PT cruiser questions

Your welcome. Bye
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