Fuel pressure for 06+ 4.2 supercharged

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Nov 24, 2025 | 04:39 PM

Mecca148

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From: Virginia U.s

Fuel pressure for 06+ 4.2 supercharged

Does anybody know what the fuel pressure supposed to be at WOT for the 2006 through 2009 jaguar 4.2 supercharged cars with a single pump?

Nov 24, 2025 | 05:09 PM

NBCat

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From: Newport Beach, California

Nov 24, 2025 | 05:21 PM

JagV8

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From: Yorkshire, England

For completeness, PTEC is what the early S-Types use. Newer ones have Denso.

Ignoring diesel.

Nov 24, 2025 | 05:57 PM

Mecca148

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From: Virginia U.s

I was just curious, imma assume 43psi is the correct amount but if anyone pillows for sure or has a different reading, please chime in.

Nov 24, 2025 | 06:27 PM

NBCat

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From: Newport Beach, California

At Wide Open Throttle, the fuel pressure for the SC engine should be around 500 kPa as shown above in the chart.

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