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What would cause a surging feeling in higher gears? full boost than 5psi. no CEL's...???

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Old 10-30-2004, 11:19 AM
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Default What would cause a surging feeling in higher gears? full boost than 5psi. no CEL's...???

It holds 18psi or so, and than i get this surge of power feeling, except a loss of power. It is probably a boost leak, but anything else?
It would hit spec'd boost, and than past 3k or so it would drop to 5psi. no cel's or codes, and full boost is back almost every time. exagerrated in higher gears. strange...
Old 10-30-2004, 11:37 AM
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Default 5psi is limp mode - you need to figure out why your car is going into limp mode.............

do this soon, as driving around with some probs that cause limp mode can be bad.
Old 10-30-2004, 12:08 PM
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pressure tested. not a boost leak. ....
Old 10-30-2004, 12:22 PM
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Default Other things can do that too - I've seen a bad MAF to that...have you logged block 003 to see.......

what your MAF #'s are?

Also, a bad F-hose can do that and still not throw codes (that's how my bad F-hose showed up)....
Old 10-30-2004, 12:31 PM
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Default i will log 003 later today and get back to you. thanks jason!

im thinking it could be the maf. ; )
Old 10-30-2004, 01:23 PM
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MAF replaced last week, same symptoms.
Old 10-30-2004, 01:26 PM
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throttle cut maybe? Log 003 when it's happening and post it.
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