J30t Sluggish

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Brian Houghtby - 21 Jul 2006 21:09 GMT

My 97 J30t is very sluggish at times. This never happens when I first start
it, just when it get up to temperature. I have noticed a couple of time
when I take the fuel cap off when nearly empty, it doesn't make the air
pressure noise. Could a bad gas cap cause sluggishness? What else could it
be. I have done new plugs, fuel filter and air filter.

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JimV - 22 Jul 2006 00:38 GMT

> My 97 J30t is very sluggish at times. This never happens when I first start
> it, just when it get up to temperature. I have noticed a couple of time
> when I take the fuel cap off when nearly empty, it doesn't make the air
> pressure noise. Could a bad gas cap cause sluggishness? What else could it
> be. I have done new plugs, fuel filter and air filter.

Are you burning 90 octane? Could also be a bad knock sensor if >100K (or
dozens of other things).

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Brian Houghtby - 22 Jul 2006 12:02 GMT

Usually do the highest octane I can get 91-93. All the time. Dealer
scanned it and found nothing and of course couldn't reproduce it! Where to
begin!?!

>> My 97 J30t is very sluggish at times. This never happens when I first
>> start it, just when it get up to temperature. I have noticed a couple of
[quoted text clipped - 4 lines]
> Are you burning 90 octane? Could also be a bad knock sensor if >100K (or
> dozens of other things).

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