1990 Jaguar XJ6 engine stumble

1990 JAGUAR XJ6
160,215 MILES • 6 CYL • 2WD • AUTOMATIC
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DANIELGP1987
  • MEMBER
  • 1 POST
hi, i recently purchased a 90 jag xj6.
and it didn't have any heat so i replaced the thermostat
and the heat works but now it wont run through 2,000 RPM to 3,500 RPM @ Normal Temp.
but it runs fine whens its cold.
also the vcm say's fuel fail and then flashes code 69 wich is neutral safety switch
whats a fuel failure have to do with code 69????????
Dec 23, 2008 at 10:05 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,837 POSTS
  • ASE Certified Mechanic
Hi, it sounds like it might be two things, first the neutral code culd tell the computer that the car is not in gearm the comp will limit the engine rpm, it just now shwed up becasue the engine is warm and now in closed loop. Or the temp sender for the ECM is bad causing the problem, please let me know, thanks for using 2carpros.com
Dec 26, 2008 at 12:29 PM
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