Bad hesitation, very sluggish - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Trentin24 · 04-10-2016, 04:11 PM

So recently I installed some TSP 1-7/8 long tube headers. I have a tune from JRE and got it updated so it took care of the CEL. Moving on, I drove it for a few weeks. No issues whatsoever, noticeable power increase. But just last week after I filled the tank full. About when it got to 3/4 tank I noticed that there was a slight hesitation right between 1000-2000RPM. So I thought that was weird, I assumed I got bad gas so I got an octane booster and put that in. No improvement. So then I just drove it around trying to get rid of the tank of gas. I also changed all the spark plugs with NGK Laser Iridiums.
So then I'm at a 1/4 tank, go out 92 in, park it and do the fuse pull (5,20).
Start it up this morning, turn the corner and still has the hesitation, and it's even worse now. So I drive to where I'm going, get on it a bit and right around 3000 it just doesn't wanna pull like it did and I can feel the difference 100%. So I baby it and take it home. Then my check engine light turns on and it's a P0306, so I pop the hood, inspect the wires and none of them are burnt or touching anything. Then I unplugged #6 wire and swapped with #1 just to see if that's the issue and cleared check engine light. I drove it around for a bit but the light didn't turn on. So now I'm gonna wait for the engine to cool and inspect spark plug. Does anyone have any ideas??
I have a daily driver so I won't be driving this around. I'm just worried and really want it fixed.

Avenging Orange · 04-11-2016, 01:36 PM

Call your tuner. Could be so many things. Check all plug wires.....mad sensor...intake connections...vacuum hoses. And it could still be the gas.

04-11-2016, 01:36 PM	#2
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Call your tuner. Could be so many things. Check all plug wires.....mad sensor...intake connections...vacuum hoses. And it could still be the gas. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

04-10-2016, 04:11 PM	#1
Trentin24 Trentin24 Drives: 2011 2SS/RS Join Date: Jan 2013 Location: Washington Posts: 1,377 View My Garage	Bad hesitation, very sluggish So recently I installed some TSP 1-7/8 long tube headers. I have a tune from JRE and got it updated so it took care of the CEL. Moving on, I drove it for a few weeks. No issues whatsoever, noticeable power increase. But just last week after I filled the tank full. About when it got to 3/4 tank I noticed that there was a slight hesitation right between 1000-2000RPM. So I thought that was weird, I assumed I got bad gas so I got an octane booster and put that in. No improvement. So then I just drove it around trying to get rid of the tank of gas. I also changed all the spark plugs with NGK Laser Iridiums. So then I'm at a 1/4 tank, go out 92 in, park it and do the fuse pull (5,20). Start it up this morning, turn the corner and still has the hesitation, and it's even worse now. So I drive to where I'm going, get on it a bit and right around 3000 it just doesn't wanna pull like it did and I can feel the difference 100%. So I baby it and take it home. Then my check engine light turns on and it's a P0306, so I pop the hood, inspect the wires and none of them are burnt or touching anything. Then I unplugged #6 wire and swapped with #1 just to see if that's the issue and cleared check engine light. I drove it around for a bit but the light didn't turn on. So now I'm gonna wait for the engine to cool and inspect spark plug. Does anyone have any ideas?? I have a daily driver so I won't be driving this around. I'm just worried and really want it fixed.