Help! Car Idles Rough, Won't Accelerate, Service Engine Soon Light Flashes, Code P300

jwick

I've only messed with the passenger one. Go at it directly from above with extensions and a knuckle at the O2 socket. I assume driver side is similar.

__________________
'10 G37T 6MT Graphite/Graphite - BP - G37T Build

SouthArk370Z

Try it and see if it works for you. You can always (carefully) wipe off any excess.

__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

NeoNz

im just going to take the car to midas...they screwed up my o2 sensors in the first place. the oxy-acetalene torch fried them, both are non-functional, and they are bent sideways, no kidding like a limp xxxx lol. I can't even imagine how you get to the drivers side O2 sensor, its no accessible!!

__________________
2012 G37x, K&N Intake, FI RHFC, 13.9 @ 100(Daily)
2008 Corvette LS3, B&B Exhaust, 12.3 @ 116

Chuck33079

Midas? Problem found. They might be one of the few shops worse than the dealer monkeys.

__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

NeoNz

To their credit, Midas was actually helpful.

Changed my Pre-cat o2 sensors and that still didnt solve the problem.

The manager thought about it, and figured out it could be a fuse. Traced the O2 heater and O2 sensor fuses back to the engine bay and it turned out to be a mini 15 amp fuse that was blown. after that was fixed, boom problem solved for now. I will drive it around a few hundred miles and run the codes to ensure they are solved. As of now i have the old downstream O2 sensors in, i'll see if that is a problem still.

What a pain to get to that fuse box, its next to the battery and you have to remove your windshield cowl to get to it. Just happy this is fixed now, the fuse must have blowl when i went into limp mode when the vacuum line fell off, (midas screwed that up)

__________________
2012 G37x, K&N Intake, FI RHFC, 13.9 @ 100(Daily)
2008 Corvette LS3, B&B Exhaust, 12.3 @ 116

DOOMMONKEY777

Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked/leaking EGR valve / passages
Faulty camshaft position sensor Defective computer

GL OP

__________________
Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you. 537whp/496lb/tq@8-9PSI 93 octane