Acceleration problems

AznGA · 04-06-2005, 09:34 PM

Here is how my engine bahaves during acclearation. The RPM would go up, stop, go up, stop, and so forth. It's more apparent during WOT. What do you guys think? TCC? TPS?

iceman · 04-06-2005, 09:47 PM

Sounds like when I had clogged injectors... but could be any number of fuel delivery / ignition issue. Start with the obvious.. how many miles, what kinda of maintenance done, what kind of plugs, any SES ??

AznGA · 04-06-2005, 10:07 PM

68000 miles. Fuel injectors cleaned at around 45000 I believe.
No SES, I have NGK plugs and Taylor wires that I put in at around 40000.

iceman · 04-06-2005, 10:10 PM

Ditch the taylor wires and NGK plugs IMO. Taylor wires = misfire city for me, very similar to the clogged injectors I've had, similar to what you are describing. Injectors can clog within a short time too unfortunately

AznGA · 04-06-2005, 10:13 PM

I thought misfire will always throw SES light? So do you suggest going back to stock wires and plugs?

iceman · 04-06-2005, 10:17 PM

A slight misfire will not always, it did not in my case and others that had problems w/ taylors.

You have to start eliminating things.. This kind of issue is what I had and others have had.. No SES, slight misfire. For some it's the wires, some it's the coil packs, some it's the injectors / fuel delivery, etc.. you get my point. As with any repair, you eliminate things one by one to isolate the problem. Easy things to start with are wires, yeah. Then move from there. Or just take it by a mechanic and let them fix it if you're not comfortable with it

skyguard · 04-11-2005, 10:19 PM

Replaced my plugs in the GT, not that there was anything wrong with them, just wanted something a little more performant, so, installed Bosch Platinum quad fire. The engine ended up misfiring on all 6, reinstalled the original plugs, problem solved.

Andy_GT · 04-12-2005, 09:17 AM

First thought that came into my mind is along the fuel delivery problem route. Try replacing the fuel filter (assuming there is one on these cars).

skyguard · 04-12-2005, 06:51 PM

you assumed correctly, there is a fuel filter, mounted underside rear, right.

IMICEMAN · 04-13-2005, 10:22 AM

Do you have any modifications on your car ?
(Like TOG headers, for instance ?)

AznGA · 04-13-2005, 02:25 PM

I just have CAI and SLP exhaust for performance. I also have NGK plugs and Taylor wires. They might be misfiring.

iceman · 04-13-2005, 02:53 PM

Taylor wires suck ass

skyguard · 04-13-2005, 03:43 PM

Quote:

Originally Posted by IMICEMAN

Do you have any modifications on your car ?
(Like TOG headers, for instance ?)

unfortunately, not at this time, with my two sons playing hockey, guitar, etc. not much time or money to modify anything. Mods are a definate but until I get my hands on a second car or truck, it kind of S&%*k's to have a nice rig and drive it in 5 feet of snow.

CruzinGT33 · 04-13-2005, 04:12 PM

Clogged CAT!!! Replace it, trust me... had the same situation, its the exhaust flow... your engine can't **** properly and is getting all backed up.

AznGA · 04-13-2005, 07:56 PM

I just got my fuel injectors cleaned and the problem is still there. At least one thing is eliminated. Please tell me our stock cat is supposed to last more than 70000 miles.

NorKoastal · 04-14-2005, 08:45 AM

You might help your mileage out a bit. Why not get a high flow replacement??

AznGA · 04-14-2005, 08:46 AM

I have SLP exhaust and I really don't want it any louder.

iceman · 04-14-2005, 08:48 AM

Did you try putting stock wires back on?

AznGA · 04-14-2005, 08:51 AM

I do not have stock wires, but I think I will pick up a new set and put them in. That will be the next step.

1hotgagt · 04-14-2005, 08:16 PM

were exactly is the fuel filter i want to change mine and i looked under the back i cant find the damn thing anywhere. and i ahve taylor 8mm blue wires in my car from pfyc.com and they r fine no problems

04-06-2005, 09:34 PM	#1
AznGA GAGT - Junkie AKA: YJ Join Date: Nov 2002 Location: Midwest Posts: 4,440 Vehicle: GAGT	Acceleration problems Here is how my engine bahaves during acclearation. The RPM would go up, stop, go up, stop, and so forth. It's more apparent during WOT. What do you guys think? TCC? TPS?

04-06-2005, 09:47 PM	#2
iceman woop woop AKA: Seth Join Date: Aug 2002 Location: Cherry Hill, NJ Age: 41 Posts: 10,528 Vehicle: 97 Blazer - 84 Fiero	Sounds like when I had clogged injectors... but could be any number of fuel delivery / ignition issue. Start with the obvious.. how many miles, what kinda of maintenance done, what kind of plugs, any SES ?? __________________ --Seth Support GrandAmGT.com sponsors! My Picture Gallery \| GoneDragRacing.com Drag Racing Photos & Videos

04-06-2005, 10:10 PM	#4
iceman woop woop AKA: Seth Join Date: Aug 2002 Location: Cherry Hill, NJ Age: 41 Posts: 10,528 Vehicle: 97 Blazer - 84 Fiero	Ditch the taylor wires and NGK plugs IMO. Taylor wires = misfire city for me, very similar to the clogged injectors I've had, similar to what you are describing. Injectors can clog within a short time too unfortunately __________________ --Seth Support GrandAmGT.com sponsors! My Picture Gallery \| GoneDragRacing.com Drag Racing Photos & Videos

04-06-2005, 10:17 PM	#6
iceman woop woop AKA: Seth Join Date: Aug 2002 Location: Cherry Hill, NJ Age: 41 Posts: 10,528 Vehicle: 97 Blazer - 84 Fiero	A slight misfire will not always, it did not in my case and others that had problems w/ taylors. You have to start eliminating things.. This kind of issue is what I had and others have had.. No SES, slight misfire. For some it's the wires, some it's the coil packs, some it's the injectors / fuel delivery, etc.. you get my point. As with any repair, you eliminate things one by one to isolate the problem. Easy things to start with are wires, yeah. Then move from there. Or just take it by a mechanic and let them fix it if you're not comfortable with it __________________ --Seth Support GrandAmGT.com sponsors! My Picture Gallery \| GoneDragRacing.com Drag Racing Photos & Videos

04-13-2005, 10:22 AM	#10
IMICEMAN 28.06.42.12 AKA: Kent Join Date: Sep 2002 Location: Ottawa, Ontario Posts: 133 Vehicle: 2001 GAGT (White)	Do you have any modifications on your car ? (Like TOG headers, for instance ?) __________________ MODS: Borla Exhaust, 20% Tinted Windows, GrafxWerks Reflective Overlays, Mille Miglia Emotion II PLUS 17x8 RIMS (5x114.3, +40mm Offset) with Bridgestone Fuzion ZRi 245/40wr17 tires, EBC Sport Grooved/Dimpled Front/Rear Rotors, EBC Greenstuff Pads, Goodridge Stainless Steel Brake Lines, Dr.Speed Stage 3 CAI, and TOG Exhaust Headers, and NOW, a Brullen High Flow Catalytic Converter. DO IT the day after yesterday !!

04-06-2005, 10:07 PM	#3
AznGA GAGT - Junkie AKA: YJ Join Date: Nov 2002 Location: Midwest Posts: 4,440 Vehicle: GAGT	68000 miles. Fuel injectors cleaned at around 45000 I believe. No SES, I have NGK plugs and Taylor wires that I put in at around 40000.

04-06-2005, 10:13 PM	#5
AznGA GAGT - Junkie AKA: YJ Join Date: Nov 2002 Location: Midwest Posts: 4,440 Vehicle: GAGT	I thought misfire will always throw SES light? So do you suggest going back to stock wires and plugs?

04-11-2005, 10:19 PM	#7
skyguard Dan Join Date: Apr 2005 Location: Oromocto, NB Age: 57 Posts: 10 Vehicle: 2001 Grand Am GT Sedan	Replaced my plugs in the GT, not that there was anything wrong with them, just wanted something a little more performant, so, installed Bosch Platinum quad fire. The engine ended up misfiring on all 6, reinstalled the original plugs, problem solved.

04-12-2005, 09:17 AM	#8
Andy_GT GAGT - Newbie Join Date: Mar 2005 Location: Maryland Posts: 7 Vehicle: 2003 Grand Am GT	First thought that came into my mind is along the fuel delivery problem route. Try replacing the fuel filter (assuming there is one on these cars).

04-12-2005, 06:51 PM	#9
skyguard Dan Join Date: Apr 2005 Location: Oromocto, NB Age: 57 Posts: 10 Vehicle: 2001 Grand Am GT Sedan	you assumed correctly, there is a fuel filter, mounted underside rear, right.

04-13-2005, 02:25 PM	#11
AznGA GAGT - Junkie AKA: YJ Join Date: Nov 2002 Location: Midwest Posts: 4,440 Vehicle: GAGT	I just have CAI and SLP exhaust for performance. I also have NGK plugs and Taylor wires. They might be misfiring.

04-13-2005, 02:53 PM	#12
iceman woop woop AKA: Seth Join Date: Aug 2002 Location: Cherry Hill, NJ Age: 41 Posts: 10,528 Vehicle: 97 Blazer - 84 Fiero	Taylor wires suck ass __________________ --Seth Support GrandAmGT.com sponsors! My Picture Gallery \| GoneDragRacing.com Drag Racing Photos & Videos

04-13-2005, 04:12 PM	#14
CruzinGT33 JustinX AKA: Justin Join Date: Aug 2003 Location: Southern Illinois Age: 37 Posts: 738 Vehicle: '01 GAGT Silver Coupe	Clogged CAT!!! Replace it, trust me... had the same situation, its the exhaust flow... your engine can't ** properly and is getting all backed up. __________________ Going to the Dark side, '05-'06 Tibby... i know, I know. My Cardomain Page "What?!?" "Oh, I hope noone ** on my coat!!"

04-13-2005, 07:56 PM	#15
AznGA GAGT - Junkie AKA: YJ Join Date: Nov 2002 Location: Midwest Posts: 4,440 Vehicle: GAGT	I just got my fuel injectors cleaned and the problem is still there. At least one thing is eliminated. Please tell me our stock cat is supposed to last more than 70000 miles.

04-14-2005, 08:45 AM	#16
NorKoastal WhiteOutGT AKA: Brad Join Date: Jul 2003 Location: NorCal Age: 40 Posts: 911 Vehicle: 2000 GA GT Coupe	You might help your mileage out a bit. Why not get a high flow replacement??

04-14-2005, 08:46 AM	#17
AznGA GAGT - Junkie AKA: YJ Join Date: Nov 2002 Location: Midwest Posts: 4,440 Vehicle: GAGT	I have SLP exhaust and I really don't want it any louder.

04-14-2005, 08:48 AM	#18
iceman woop woop AKA: Seth Join Date: Aug 2002 Location: Cherry Hill, NJ Age: 41 Posts: 10,528 Vehicle: 97 Blazer - 84 Fiero	Did you try putting stock wires back on? __________________ --Seth Support GrandAmGT.com sponsors! My Picture Gallery \| GoneDragRacing.com Drag Racing Photos & Videos

04-14-2005, 08:51 AM	#19
AznGA GAGT - Junkie AKA: YJ Join Date: Nov 2002 Location: Midwest Posts: 4,440 Vehicle: GAGT	I do not have stock wires, but I think I will pick up a new set and put them in. That will be the next step.

04-14-2005, 08:16 PM	#20
1hotgagt GAGT - Member Join Date: Mar 2005 Location: philly pa Age: 34 Posts: 80 Vehicle: 2001 grand am GT sedan	were exactly is the fuel filter i want to change mine and i looked under the back i cant find the damn thing anywhere. and i ahve taylor 8mm blue wires in my car from pfyc.com and they r fine no problems

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