Stumble/No Power - o2 Sensor?!? HELP!
Thread Starter
TECH Fanatic
iTrader: (25)
Joined: Jan 2006
Posts: 1,271
Likes: 0
From: Katy & College Station, TX
Stumble/No Power - o2 Sensor?!? HELP! My damn car just started bogging down whenever I push the gas here in town and on highway and it can't hold idle. By the time I had driven 3 miles or so back to my place, the car barely had any power and was stumbling all over the place whenever I would touch the throttle, and at idle. It seems to be a wiring issue. I have no SES light though.
Ok, so I am in MD outside of D.C. for an internship and just got here two days ago all the way from TX (~1400 miles the route we took) and the car did perfect the whole way here getting 25 - 28 mpg w/4.10s and 130k miles on the stock 02 longblock. I have my tools but live in an apartment and don't have a jack and the way the 02 sensor is on the passenger side, I can't get it out without pulling the exhaust which is a no-no here. The car doesn't even have enough power to get it up onto the rhino ramps because it can't hold a certain rpm worth a damn!
What should I do? What could it be if not 02 sensors? How can I check?
Thanks in advance!
-Karl
Ok, so I am in MD outside of D.C. for an internship and just got here two days ago all the way from TX (~1400 miles the route we took) and the car did perfect the whole way here getting 25 - 28 mpg w/4.10s and 130k miles on the stock 02 longblock. I have my tools but live in an apartment and don't have a jack and the way the 02 sensor is on the passenger side, I can't get it out without pulling the exhaust which is a no-no here. The car doesn't even have enough power to get it up onto the rhino ramps because it can't hold a certain rpm worth a damn!
What should I do? What could it be if not 02 sensors? How can I check?
Thanks in advance!
-Karl
It could be a million things man. Car will run with bad o2's. Could be maf, map, injector problem, etc. You need to scan it, check for fault codes first. I wouldnt throw parts at it, because it could get expensive.
check your sensor fuse. it all ties in through that. if thats popped it will run like your describing. thats an easy start and you dont need a jack. you can continue on from there.
Sounds like it could be the coolant temp sensor. As said before, you could get a pretty good idea of what your problem is by swinging by an Autozone, and having them check for codes.
Thread Starter
TECH Fanatic
iTrader: (25)
Joined: Jan 2006
Posts: 1,271
Likes: 0
From: Katy & College Station, TX
theres no codes at all....which is making me think that it might just be bad gas. im gonna try pulling the fuel filter and seein what the fuel looks like.
Trending Topics
Teching In
Joined: Nov 2001
Posts: 19
Likes: 0
From: ROCKWALL, TEXAS
unplug the mass air sensor and start the car, let it idle for a minute and let it switch to speed density mode, then go drive the car, if it runs ok, its either the maf or the o2 sensors, the only real way to check which sensor is bad is to hook a tech 2 up to it and look at each one.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
