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Mr.Riviera
Expert
Mr.Riviera


Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101

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PostSubject: major power loss   major power loss EmptySun Sep 16, 2007 7:33 pm

i was just out driving to get dinner and my riv started messing up really bad. i went to pass someone (i was rolling about 40) and went WOT to get around and into the far lane, unfortunately my rpms bogged down to about 1500 and the car surged +-50rpm.(not a heavy surge like trans shifting back and fourth, but light surging) i was flooring it, dumping air into the s/c, and nothing was happening. im guessing KR was through the roof and timing was pulled like never before!
so i let off the gas and rolled to the stop light. sit there waiting for the CEL to light up...nothing. it idles fine and revs fine in N, so i give it some gas on green. drives fine and has plenty of power all the way to 70.(didnt go WOT, but i was def into the boost)
i pull into the place i was getting food from (quizno's) and again it bogs down, but this time it is less noticeable b/c i am light on the throttle and it bogs at about 2k rpm just cruising at 30. i pull in, pop the hood and look around, expecting to find a vac line unplugged or belt split in half or something. nope! bonk

so it drove home ok and went WOT fine. no CEL and no weird noises. i looked over everything again once i got back and it all looks normal. im about to go pull a plug or 2 and check vac lines, maf, etc.
anyone have any suggestions as to what might be causing this extreme hesitation? maybe faulty MAF? tranny? plugs and wires are all new (plugs are only about 2mo old and plugs are less than a year old.)
i really wish i had a code to go on. oh, and i cant make the car do it again, only when it want to.
Matthew

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
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Mr.Riviera
Expert
Mr.Riviera


Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101

major power loss Empty
PostSubject: Re: major power loss   major power loss EmptySun Sep 16, 2007 8:09 pm

plugs are good and maf has been sprayed with cleaner.
maybe this was just a fluke?? suspect
any ideas out there? i'll update tomorrow if not.

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
major power loss Dsc_0110
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Name : Aaron
Age : 47
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18452
Merit : 252

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PostSubject: Re: major power loss   major power loss EmptySun Sep 16, 2007 8:14 pm

Hard to say. I'd get the scanner hooked up and try to get it to repeat. I'm betting something like that is bound to occur again. Double check vac lines... isn't the transmission assisted by vacuum on the '96s?

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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http://www.cardomain.com/ride/657082/4
AA
Administrator
AA


Name : Aaron
Age : 47
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18452
Merit : 252

major power loss Empty
PostSubject: Re: major power loss   major power loss EmptyTue Sep 18, 2007 8:52 am

Any luck with the problem?

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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http://www.cardomain.com/ride/657082/4
Mr.Riviera
Expert
Mr.Riviera


Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101

major power loss Empty
PostSubject: Re: major power loss   major power loss EmptyTue Sep 18, 2007 3:54 pm

hasnt done it since, and no pending codes nore problems with scans. i'm thinking it was my maf that messed up. i sprayed it once again and its been ok since. ill update later on if it does it more.

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
major power loss Dsc_0110
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