#95112 - 01/14/09 01:18 PM
Possible Cat issue again?
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Registered: 07/30/07
Posts: 3294
Loc: Ames, Iowa
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I have an 02 Grand Prix GT and got my Cat replaced by a shop (actually paid didnt hear about the recall for my car on the cat on 01's and 02 gt's or w/e). Anyhow when I accelerate in my car WOT it tends to sputter a bit at around 4-5k RPM's. It'll back down for a sec then kick back in. I'm guessing this has to do with the cat possibly being clogged again? Im guessing they replaced with stock cat and it was awhile ago (probably 2 years ago) when i had it done. So I'm wondering what the problem would be. I also have the Bosch Platnium Plus plugs would that be something to do with it? I have no idea. It's been real subtle for a long time, like i'd notice every once and awhile but now it seems like every day if i go WOT it will sputter a bit.
Also I have another possible symptom if I just sit there and rev it for a bit in park or neutral the exhuast will sometimes pop or almost cackle when I rev it even lightly sometimes itll do it.
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Inferno Package/CAI/180tstat/3" DP/AL 104 XP's/3.8 MPS/Tuned
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#95114 - 01/14/09 02:26 PM
Re: Possible Cat issue again?
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Registered: 07/30/07
Posts: 3294
Loc: Ames, Iowa
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Whats all involved in a tune up?
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Inferno Package/CAI/180tstat/3" DP/AL 104 XP's/3.8 MPS/Tuned
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#95116 - 01/14/09 04:13 PM
Re: Possible Cat issue again?
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Registered: 11/08/08
Posts: 2689
Loc: Eagan,MN
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BTW ben i started my fuel filter and jacked up the car, then said "screw it" its so cold dont even waste your time for now, tires plus charges over 80$ for just a fuel filter, and my fuel filter sitting in my room was 15.99, even so, when are you going WOT in this weather lol, just curious
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#95117 - 01/14/09 04:35 PM
Re: Possible Cat issue again?
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Registered: 01/01/08
Posts: 3900
Loc: Ontario, Canada
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Make sure you don't strip the end of the fuel filter trying to get it off, if you do, have fun, it's a PITA. I'd take it somewhere to have them do it so if they screw up it is their problem. That and they have the proper tools for getting it off.
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#95118 - 01/14/09 04:45 PM
Re: Possible Cat issue again?
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Registered: 11/08/08
Posts: 2689
Loc: Eagan,MN
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that is a good point, but i mean, im not gonna do it till spring
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#95119 - 01/14/09 05:30 PM
Re: Possible Cat issue again?
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Registered: 02/20/08
Posts: 2647
Loc: Wall Lake Iowa
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Originally posted by jorgs_7: BTW ben i started my fuel filter and jacked up the car, then said "screw it" its so cold dont even waste your time for now, tires plus charges over 80$ for just a fuel filter, and my fuel filter sitting in my room was 15.99, even so, when are you going WOT in this weather lol, just curious 100mph stoplight lauches LOLJK
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why im here: 00 Grand Prix GT; Wrecked. PARTS FOR SALE ; PM ME
-98 GTP DAYTONA 752/1500 -Intake -CCG grills -HID -Tint -1 12" Pioneer Premier soon to come: projectors,exhaust work, 3.4 setup.
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#95120 - 01/14/09 05:45 PM
Re: Possible Cat issue again?
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Member
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Registered: 02/20/08
Posts: 2647
Loc: Wall Lake Iowa
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why im here: 00 Grand Prix GT; Wrecked. PARTS FOR SALE ; PM ME
-98 GTP DAYTONA 752/1500 -Intake -CCG grills -HID -Tint -1 12" Pioneer Premier soon to come: projectors,exhaust work, 3.4 setup.
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#95121 - 01/14/09 06:38 PM
Re: Possible Cat issue again?
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Registered: 12/20/08
Posts: 122
Loc: Saskatchewan, Canada
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The popping noise you hear in neutral/park is the rev limiter, stops your engine from revving to high when your not driving, totally normal
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03 GT: K&N FWI, P-Log&PEM, ZZP downpipe, Dynomax ST muffs, HV3 insert, Harland Sharp 1.9 RR's
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#95122 - 01/14/09 10:41 PM
Re: Possible Cat issue again?
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Registered: 06/12/06
Posts: 2694
Loc: Alexandria, Virginia
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My mother car was doing the same thing and when I changed her spark plugs, all of the sputtering and hesistation went away and is back to normal. So maybe do a tune as everybody say, good luck.
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Exterior- stock painted black wheels, clear corners, stainless steel grill, cross and drilled front and rear rotors with evolution brake pads. Coming soon- 18 inch black mustang bullet rims, GT/GTP rear bumper, tinted windows.
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