Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Horrible Gas Mileage and rough idleing and driving

Thread Tools
 
Search this Thread
 
Old 10-11-2007, 03:18 PM
  #1  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default Horrible Gas Mileage and rough idleing and driving

I have 1998 Camaro SS with LT's and ORY. I have these SES codes
p0131
p0140
p0151
p0152
p0154
p0160

I know they are all O2 sensor codes. THe car will idle rough, almost kill itself, then shoot itslef back up. while driving, it feels like its getting too much air and and bog nasty. Only time it runs good is at WOT, but when i go WOT if you look out the back you see a cloud of black smoke. Do I just need new o2 sensors? or could it be fuel pressure regualtor? or fuses? any advice will help.
Old 10-11-2007, 04:45 PM
  #2  
TECH Resident
iTrader: (2)
 
SS101's Avatar
 
Join Date: Jan 2006
Posts: 807
Likes: 0
Received 1 Like on 1 Post

Default

at least o2s...start there, any other problems will be much easier to diagnose after that's taken care of
Old 10-11-2007, 05:32 PM
  #3  
TECH Senior Member
 
2001NBMZ28's Avatar
 
Join Date: Dec 2001
Location: Jacksonville, FL
Posts: 5,399
Likes: 0
Received 3 Likes on 3 Posts

Default

02's are on the ENG SEN fuse circuit - something easy to check, but usually throws a MAF code if blown. Check the wiring/connectors on both front sensors - didn't know you could throw low voltage, high voltage and insufficient activity on the same sensor. Don't know what's going on...did it just happen all of a sudden or just after a header install? Don't worry about the rear sensor codes if you don't have cats.
Old 10-11-2007, 06:55 PM
  #4  
12 Second Club
iTrader: (5)
 
FireSilverLullaby's Avatar
 
Join Date: Aug 2005
Location: Chesapeake,va and Charlotte,NC
Posts: 1,231
Likes: 0
Received 0 Likes on 0 Posts
Default

yeah get under the car and make sure none of the wires are burnt. you also might want to try cleaning the o2 sensors with some electrical parts cleaner and compressed air.
Old 10-12-2007, 09:24 AM
  #5  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default

No, i dont have cats, or rear o2's, so I know about those codes, and this started after the header install but its been about 5 months since header install before this started to happen.
Old 10-12-2007, 09:30 AM
  #6  
12 Second Club
iTrader: (116)
 
BIG_MIKE2005's Avatar
 
Join Date: Jun 2005
Location: Skiatook, OK
Posts: 5,222
Received 1 Like on 1 Post

Default

Sounds like bad O2's then if it just started happening 5 months after the LT install.
Old 10-12-2007, 01:45 PM
  #7  
Staging Lane
iTrader: (2)
 
can'tfindausername's Avatar
 
Join Date: Jun 2006
Location: Mooresville, IN
Posts: 95
Likes: 0
Received 0 Likes on 0 Posts

Default

I had a issue like this, replaced my 02's and was good to go. That is where I'd start
Old 10-16-2007, 11:44 AM
  #8  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default

ok just to add another thing to this, its getting colder, and i have realized when i turn my heater on, my car has no problem at all, it runs fine, all day... does this make any sense?
Old 10-16-2007, 11:47 AM
  #9  
TECH Resident
iTrader: (2)
 
SS101's Avatar
 
Join Date: Jan 2006
Posts: 807
Likes: 0
Received 1 Like on 1 Post

Default

have you even tried new o2s??????
Old 10-16-2007, 12:31 PM
  #10  
TECH Apprentice
iTrader: (3)
 
matt3383's Avatar
 
Join Date: Sep 2006
Location: Arizona
Posts: 381
Likes: 0
Received 0 Likes on 0 Posts
Default

Well the O2's might not be getting up to temp. WHat kind of headers did you install? I would also recc. new O2's
Old 10-16-2007, 04:03 PM
  #11  
TECH Regular
iTrader: (2)
 
DMONEY06's Avatar
 
Join Date: Sep 2006
Location: RGV TX
Posts: 426
Likes: 0
Received 0 Likes on 0 Posts
Default

mines doing the same thing id try fuel filter and o2s bosch P/N 13111
Old 10-16-2007, 04:12 PM
  #12  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default

my fuel filter is new, its around 3 months, and my o2 sensors are about 4 months old, and i just started getting these problems abotu 2 months ago. my car is a 1998 SS with 109xxx miles on it.
Old 10-16-2007, 04:41 PM
  #13  
TECH Resident
iTrader: (23)
 
3rdgentug's Avatar
 
Join Date: Jul 2005
Location: memphis, tennessee
Posts: 806
Likes: 0
Received 0 Likes on 0 Posts

Default

new o2's!
Old 10-17-2007, 10:44 AM
  #14  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default

i guess i will try new o2s i hope that fixs it, this is getting frustrating, and the gas mileage is nasty bad
Old 10-17-2007, 10:57 AM
  #15  
TECH Apprentice
iTrader: (1)
 
Jhankinson's Avatar
 
Join Date: Oct 2005
Location: Port Charlotte, FL
Posts: 314
Likes: 0
Received 0 Likes on 0 Posts
Default

Do you really think the O2's have gone bad in just 4 months? he said they are only 4 months old. I would hope they didnt get toasted that fast or there is much bigger issues.
Old 10-17-2007, 12:26 PM
  #16  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default

well i dont know if wires got burnt on the header or anything. i hope it is something easy, but who knows, probably not my luck
Old 10-17-2007, 02:51 PM
  #17  
TECH Resident
iTrader: (2)
 
radkon's Avatar
 
Join Date: Sep 2004
Location: Cleveland, Oh
Posts: 810
Likes: 0
Received 0 Likes on 0 Posts

Default

What other mods do you have and have you ever had it tuned?

If the car is running always running rich it will kill O2's pretty fast.
Old 10-18-2007, 09:36 AM
  #18  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default

the mods on my car are Lid, K&N Filter, Lower Thermostat, Long Tubes, Off Road Y, FLowmaster 80 series. No The Car isnt Tuned. And Yesterday i deleted AIR and EGR.
Old 10-18-2007, 01:45 PM
  #19  
TECH Resident
iTrader: (2)
 
radkon's Avatar
 
Join Date: Sep 2004
Location: Cleveland, Oh
Posts: 810
Likes: 0
Received 0 Likes on 0 Posts

Default

Your car is running rich and killing O2s. Get it tuned and replace the O2s. It will improve your mileage and drivability.
Old 10-18-2007, 02:51 PM
  #20  
Teching In
Thread Starter
 
AF1Strider's Avatar
 
Join Date: Jan 2007
Location: Northwest, FL
Posts: 24
Likes: 0
Received 1 Like on 1 Post

Default

i hope its just that. i thought the O2 sensors might have burned to the headers, and they didnt. im gonna hook up a volt meter to the O2s and look at the voltages. i wonder if the the one o2 extension i have on one side is messing everything up.


Quick Reply: Horrible Gas Mileage and rough idleing and driving



All times are GMT -5. The time now is 07:26 PM.