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Bad gasoline
I filled up yesterday at Hyvee. I've read they don't have the highest quality of gas, but they do have ethanol free 91. So that's why I use it. I've been using it for a while now without any issues, but immediately after filling up yesterday, it has started missing and hesitating. It isn't undriveable, but it is annoying. When I got home, I put in a bottle of Isoheet. It seemed to improve the situation somewhat, but did not cure it. Do you suggest adding another bottle of Isoheet (the red bottle stuff), or something more drastic?
09 G8 GT SRM Premium Sport Sunroof
HSV GTS Triple Gauge Pod, GXP Rear Sway Bar and Diffuser, HSV SuperSport Steering wheel, SOLO axle-backs, Magnaflow cats, Red Hot Shift Knob, Auto-dim Mirror, Hood Vent Mod, Removed Intake Cover, Rotofab CAI, Cortex, Infinity door speakers, MTX Re-Q5, Pioneer Amp & RF Sub, LED lows & fogs, Spyder tails, Power Slot rotors, Wagner Thermoquiet pads, Chrome lug covers, Glovebox light,
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Bremmerkraft BR09 winter wheels, Weathertech floor liners, oil pan heater
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I suggest you report the gas station so others don't have to experience the same thing.
Last edited by -Ray-; 05-06-2016 at 02:10 AM.
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Just a GT
Originally Posted by
RichsGreyGT
this site is hardcore modding central.
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I believe HyVee uses HESS fuel which they get through the Magellan Pipeline. Hess is big in the South but is NOT a Top Tier gas. Try to stick with Top Tier when possible.
I'd let the HEET do it's job and not add anymore than what's called for. I'd run it down as far as you can and refill and steer clear of that station.
2009.5 MSM GXP 500ish N/A RWHP. Mods include but aren't limited to: Texas Speed 418 (6.8L) fully forged held together with ARP from top to bottom, PRC 255cc heads, Rick Crawford intake plenum, TB port, polish and tune, Roto-Fab 102mm CAI w/LS7 MAF, Kooks 1-7/8" headers wrapped with DEI, Corsa catless system, Circle D 3200 Stall, 3.45 final drive, BMR's complete street bushing kit and sway bars, Eibach Pro Kit, G-Force Axles, running on staggered VMR 710's with Bridgestone RE11 rubber. HSV triple gauge pack with Calais smokers kit mod, V6 tails, debadge/rebadge, V6 door handles, AU black door trim, Maverick Man under hood strut covers, & washer and bolt kit, fully corrected paint thanks to Adams Polishes and my hard work. Built with reliability in mind with some power for those times when you need to pass or go over a big hill. Just a poser, not a racer!
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It throws a code every time I drive, and each time, it's been a misfire on cylinder 4. So I took a closer look today. I did take a quick peek yesterday when I got home, but nothing seemed a miss. This time, I wiggled the #4 plug wire and it popped off way too easily. Snapped it back on, and all is well. So, it wasn't the gas. Just a coincidence that it came free after I filled up.
09 G8 GT SRM Premium Sport Sunroof
HSV GTS Triple Gauge Pod, GXP Rear Sway Bar and Diffuser, HSV SuperSport Steering wheel, SOLO axle-backs, Magnaflow cats, Red Hot Shift Knob, Auto-dim Mirror, Hood Vent Mod, Removed Intake Cover, Rotofab CAI, Cortex, Infinity door speakers, MTX Re-Q5, Pioneer Amp & RF Sub, LED lows & fogs, Spyder tails, Power Slot rotors, Wagner Thermoquiet pads, Chrome lug covers, Glovebox light,
Winter-wear:
Bremmerkraft BR09 winter wheels, Weathertech floor liners, oil pan heater
Admin:
www.pontiacbonnevilleclub.com
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Originally Posted by
J Wikoff
It throws a code every time I drive, and each time, it's been a misfire on cylinder 4. So I took a closer look today. I did take a quick peek yesterday when I got home, but nothing seemed a miss. This time, I wiggled the #4 plug wire and it popped off way too easily. Snapped it back on, and all is well. So, it wasn't the gas. Just a coincidence that it came free after I filled up.
What are the chances. Glad you found the issue!
2009 PBM G8 GT
Pat G 218/226 & TSP Dual 660s, ARP Bits, DSteck Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Smith Brothers Trunion Bushing Kit, ARH 1 7/8 Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID1050x injectors
Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul
Originally Posted by TonyKarter
Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
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Gotta love the easy fixes.
Len
White Hot 2009.5 Pontiac G8 GT
TVS1900 | Custom Texas Speed & Performance cam spec'd and remote tuned by Patrick Guerra | LS9 Injectors | Rotofab CAI | Corsa catback | Kooks 1-7/8" LTs with catted connectors
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