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2003 Jaguar S-Type ReFlashing

Tiny
ALIJAGUAR
  • MEMBER
  • 2003 JAGUAR S-TYPE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
I recently had Catylics changed on my 03 Jaguar S type. Now I having a problem in the mornings at first start and whenever its parked for more than 6 hours, it seem as if my car is idling low and as if it were going to stall. After driving the car for a while it drives normal. Can anyone tell me if they've ever seen this problem; and if so is reflashing the ECM the solution?
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Monday, November 23rd, 2009 AT 4:43 PM

1 Reply

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
The 03 Jag has 2 issues with rough idle/hesitation (bogging down). One due to a computer update being needed (reflash) and one due to the injectors getting clogged. The injectors need to be flushed through with cleaner for 20 minutes with a jag recommended flushing agent. Jaguar does this all the time !

Hope this helps
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Wednesday, November 25th, 2009 AT 5:19 AM

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