engine miss 94 ls400
#1
Driver School Candidate
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engine miss 94 ls400
My 94 ls400 has a engine miss. It runs well upon start-up, but starts to miss as engine warms up. this issue gets progressively worse the longer you drive the vehicle. Any thoughts would be appreciated.
Last edited by petendeb; 04-19-12 at 09:13 AM. Reason: wrong info
#2
Moderator
Sounds like a fuel pressure issue to me. A friend of mine had a similar problem on 94 Celsior. The pressure was dropped after 15 to 20 minutes run. He replaced the fuel pump and the problem was gone.
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macmanmcy
LS - 1st and 2nd Gen (1990-2000)
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06-03-10 11:42 PM