Struggling Upon Acceleration
Thread Starter
Joined: Jun 2009
Posts: 1,281
Likes: 1
From: San Antonio, Tx
Struggling Upon Acceleration My car is a 2000 Firebird 3.8L V6 M5
Had to make a quick run to the post office today. So as I started the car everything sounded/seemed fine. As I pulled away from campus I noticed a "sputtering" type hesitation. I thought maybe I needed some gas, so I filled up and continued on my way.
If I ease on the accelerator the car seems to respond fine, but if I go anything above half throttle the car starts to jerk, hesitate and sputter.
It almost feels like like I'm bogging the engine (driving 40mph in 5th gear and trying to accelerate for example) but it happens in all gears. I left it in 3rd and eased it up to about 2.5kRPMs and all was good, but if I pushed it past 3.5k the car began to jerk bad like it was bogging out.
I swung by Vatozone on the way home and the SES light checked. It read Sensor 1 O2. It didn't specify Bank 1 or 2.
I was expecting my sensor 2 to be giving the light since I don't have a CAT but sensor 1 popping up kind of surprised me.
Could this be causing these issues?
Any help would be great!
Had to make a quick run to the post office today. So as I started the car everything sounded/seemed fine. As I pulled away from campus I noticed a "sputtering" type hesitation. I thought maybe I needed some gas, so I filled up and continued on my way.
If I ease on the accelerator the car seems to respond fine, but if I go anything above half throttle the car starts to jerk, hesitate and sputter.
It almost feels like like I'm bogging the engine (driving 40mph in 5th gear and trying to accelerate for example) but it happens in all gears. I left it in 3rd and eased it up to about 2.5kRPMs and all was good, but if I pushed it past 3.5k the car began to jerk bad like it was bogging out.
I swung by Vatozone on the way home and the SES light checked. It read Sensor 1 O2. It didn't specify Bank 1 or 2.
I was expecting my sensor 2 to be giving the light since I don't have a CAT but sensor 1 popping up kind of surprised me.
Could this be causing these issues?
Any help would be great!
Thread Starter
Joined: Jun 2009
Posts: 1,281
Likes: 1
From: San Antonio, Tx
Thread Starter
Joined: Jun 2009
Posts: 1,281
Likes: 1
From: San Antonio, Tx
Back when I had my V6 (1997 Camaro 3800 SII) I did a MSD Coil and wire swap. I was getting this same kinda issue and the code would switch from O2 to missfire on cyn 3. Come to find out I had a bad wire from MSD. Later after I sold it, they owner called me up with him having the same problems, after tellling him about the wire issues, he had it looked at and come to find out other wires were going bad. So that may be one issue to look at if you are needing to change the plugs and wires, but make sure they are not MSD type, get a good set of them from the parts store. Also check to see if you may have burned threw any of them. But if you planning the swap, do that and then see if the problem is still there.
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TECH Enthusiast
Joined: Apr 2009
Posts: 531
Likes: 0
From: Pocatello Idaho
It is a coil man my 97 did it twice on two different coils. If you take them off I bet you you will find some green corrosion in the terminals at the base of the coil. Probably from moisture getting in somehow. Make sure to replace the rubber gaskets I guess thats what they are.
