Possible O2 sensor ????
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Car: 91 Firebird
Engine: V8 305 TBI
Transmission: Auto
Possible O2 sensor ????
I ran diagnostics on my 305 TBI, and had no logged fault or event codes, but in closed loop, I was bouncing back and forth between lean and rich mixture while idling, even after she was warmed up good.........Checked this because I have been burning alot of gas in my 91 'Bird....... Only getting about 220 miles on a full tank of gas.....Seems i'm burning alot only when at 65+ mph. Should I look at replacing my O2 sensor, or any recommendations/ comments?
Thanks in advance..
Thanks in advance..
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: Possible O2 sensor ????
Originally posted by firebirdsyco
I ran diagnostics on my 305 TBI, and had no logged fault or event codes, but in closed loop, I was bouncing back and forth between lean and rich mixture while idling, even after she was warmed up good.........Checked this because I have been burning alot of gas in my 91 'Bird....... Only getting about 220 miles on a full tank of gas.....Seems i'm burning alot only when at 65+ mph. Should I look at replacing my O2 sensor, or any recommendations/ comments?
Thanks in advance..
I ran diagnostics on my 305 TBI, and had no logged fault or event codes, but in closed loop, I was bouncing back and forth between lean and rich mixture while idling, even after she was warmed up good.........Checked this because I have been burning alot of gas in my 91 'Bird....... Only getting about 220 miles on a full tank of gas.....Seems i'm burning alot only when at 65+ mph. Should I look at replacing my O2 sensor, or any recommendations/ comments?
Thanks in advance..
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Car: 91 Firebird
Engine: V8 305 TBI
Transmission: Auto
quick reply.....
She had a tune up last summer, and she's only got 60,000 orig miles on her... Do you guys get the approx same gas mileage of about 210-220 miles per tank o' gas ?
Thanks again
Thanks again
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Car: '90 RS
Engine: 377 LSX
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Re: quick reply.....
Originally posted by firebirdsyco
She had a tune up last summer, and she's only got 60,000 orig miles on her... Do you guys get the approx same gas mileage of about 210-220 miles per tank o' gas ?
Thanks again
She had a tune up last summer, and she's only got 60,000 orig miles on her... Do you guys get the approx same gas mileage of about 210-220 miles per tank o' gas ?
Thanks again
Was the 02 and plug wires replaced during that tune up?
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Re: Re: quick reply.....
Originally posted by ShiftyCapone
That is not bad mileage if it is a combo of city and highway. A full tank used on the highway should yeild more miles though.
Was the 02 and plug wires replaced during that tune up?
That is not bad mileage if it is a combo of city and highway. A full tank used on the highway should yeild more miles though.
Was the 02 and plug wires replaced during that tune up?
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Re: Re: Re: quick reply.....
Originally posted by firebirdsyco
I got her last summer, and the dude i bought it off of said he did the tune up, so my guess is not probable.... plugs and wires were replaced... If the O2 sensor was acting up, I'd probably pick it up as a fault logged, correct ? the solenoid air valve chech was ok, I was just concerned because it was fluctuating btwn lean and rich, but from what I remember, the o2 sensor voltage was fluctuating btwn a decent range....
I got her last summer, and the dude i bought it off of said he did the tune up, so my guess is not probable.... plugs and wires were replaced... If the O2 sensor was acting up, I'd probably pick it up as a fault logged, correct ? the solenoid air valve chech was ok, I was just concerned because it was fluctuating btwn lean and rich, but from what I remember, the o2 sensor voltage was fluctuating btwn a decent range....
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O2 sensors can go bad without throwing codes. I've already had it happen in two of my cars one got stuch reading rich and the other lean but no codes. They're cheap anyway if its original or in dout i would change it. Definately can't hurt.
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