Having problems with your 2002 Jaguar S-Type ?
Engine light on. scanned and p1388 code. What is the meaning of this code?
P1338 - Fuel Pump feedback circuit low/high voltage. This is indicating that your fuel pump is either getting too much voltage or too little voltage as is sensed by the fuel pump control module. Now, this can be caused by either bad wiring connections or a battery not charging causing low voltage. Should read 14 1/2 volts if charging at 1500 rpms
Repair Help & Product Troubleshooting for 2002 Jaguar S-Type
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