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98 z is sluggish
This is a discussion on 98 z is sluggish within the General Help forums, part of the LSx Technical Help Section category; have you check the fuel pressure yet?...
04-08-2011, 01:36 PM #21
have you check the fuel pressure yet?
04-12-2011, 10:54 PM #22
The exact same thing has been happening with my 2000 WS6 over the last 3 weeks. Then over the last week it had progressively been getting even worse.
Today I was adding a court of oil and thought I heard an air leak. The more I listened the more significant it sounded. It was coming from where the EGR valve"s tube connects to the top of the intake manifold right after the TB.
I disconnected the tube by just removing the one bolt on the right and there was an O Ring that had somehow partially slipped down on its own.
That was the culprit. I just repositioned it correctly and bolted it back on. I instantly had all my under 1500 rpm low end torque and HP back.
I think I'm going to just replace the O ring. It could be a little worn or stretched from the years.
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