AIR INTAKE

1986 Jaguar XJS

Tiny

gregducey68

February, 17, 2008 AT 9:56 AM

Other Category problem
1986 Jaguar XJS V12 Two Wheel Drive Automatic 42000 miles

I recently purchased this car, it was in storage for approx. 5 yrs, it has a new fuel filter, I drained all of the old gas out of it, put new fuel lines and plugs in. It fires up and runs perfectly at idle. It bogs down at 3000 rpm's. The left side of the motor is sucking air perfectly. The right side of the motor is not drawing any air at all thru the inlet. Both of the exhaust pipes are blowing good at about the same pressure. The air filters are good. I checked them first thing.

1 Answer

Tiny

Dave H

January, 6, 2010 AT 6:01 AM

XJS MANIFOLD PRESSURE SENSOR (MPS)
Disconnect battery. Pull connector from MPS. Using an ohmmeter connect test leads between the terminals. Compare resistance readings to specifications.
If readings are not to specification, replace MPS. Reconnect MPS connector and battery.
XJS MANIFOLD PRESSURE SENSOR RESISTANCE
Terminal No. Ohms
7 & 15 85.5-94.5
8 & 10 346.5-353.5
7 or 15 & Ground 0
8 or 10 & Ground 0

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