98 XJR Shuts Down After Start
#1
09-17-2023, 09:25 PM
#2
09-17-2023, 11:39 PM
Veteran Member
When the ignition is switched "on", the Pump 2 will run for 2 sec. and prime the system (to ~40 psi). On engine is start-up, the Pump 1 will run to supply fuel. The Pump 2 will later be switched "on" if there is higher demand for fuel (hard acceleration or high speeds).
It seems that your Pump 2 is good but Pump 1 (or its relay) is bad.
It seems that your Pump 2 is good but Pump 1 (or its relay) is bad.
#3
09-18-2023, 08:22 PM
X308 Run Issue
Great response !
Asking for a friend who had the start / run issue & a heart attack about the same time. He's in recovery, so it may be a few days before he's in shape to check it out.
Thanks !
QUOTE=M. Stojanovic;2679568]When the ignition is switched "on", the Pump 2 will run for 2 sec. and prime the system (to ~40 psi). On engine is start-up, the Pump 1 will run to supply fuel. The Pump 2 will later be switched "on" if there is higher demand for fuel (hard acceleration or high speeds).
It seems that your Pump 2 is good but Pump 1 (or its relay) is bad.[/QUOTE]
Asking for a friend who had the start / run issue & a heart attack about the same time. He's in recovery, so it may be a few days before he's in shape to check it out.
Thanks !
QUOTE=M. Stojanovic;2679568]When the ignition is switched "on", the Pump 2 will run for 2 sec. and prime the system (to ~40 psi). On engine is start-up, the Pump 1 will run to supply fuel. The Pump 2 will later be switched "on" if there is higher demand for fuel (hard acceleration or high speeds).
It seems that your Pump 2 is good but Pump 1 (or its relay) is bad.[/QUOTE]
Last edited by Excalibur2012; 09-18-2023 at 08:27 PM. Reason: Clarification !
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