really bad shutter problem....help??
Thread Starter
TECH Veteran
Joined: Feb 2002
Posts: 4,049
Likes: 2
From: Loganville, GA
really bad shutter problem....help?? Ok. just had a cam/verter installed and i'm getting a real bad stutter around 2000rpms and throwing some o2 codes. i had taken it back to the shop and they say that its the o2 problem and some shift point problems causing the verter to lock/unlock like it is. they got it fixed for a while now its back. could this be a bad torq converter? i had the code before i put this one in and never had this problem. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> i've gotta take it back saturday....anything i should ask them about? or is there anything i can do?
Re: really bad shutter problem....help?? what kind of 02 codes? Rear O2 codes shouldn't be a problem, but if you are misfiring that will cause lock-up issues.
If you are real lean (high positive LTrims), that can cause some issues.
Have you done any tuning yet? I'd get rid of the codes and test your Ltrims. If they are fine, then I would look at the converter.
If you are real lean (high positive LTrims), that can cause some issues.
Have you done any tuning yet? I'd get rid of the codes and test your Ltrims. If they are fine, then I would look at the converter.
Thread Starter
TECH Veteran
Joined: Feb 2002
Posts: 4,049
Likes: 2
From: Loganville, GA
Re: really bad shutter problem....help?? The o2's are the P0131/0134. yeah, i've had tuning. I'm not getting the misfire codes (i think it was deleted) but my tech II shows misfires all over except like 2 cylinders. should the "detection" be turned off too? Like yesterday, i was pout driving and started coasting to a stop, the car started jumping around like i had a clutch and was about to stall out. real hard.
Re: really bad shutter problem....help?? You need to turn off misfire detection too. It will still cause your converter to unlock. Shudder problem sounds more related to calculated load in the pcm. What are your l-trims?
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
