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05-25-2009, 02:43 PM #1Legend
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P0155?'s
Ok so for the last week I was thinking maybe my cats were on the way out. Today I started the truck and [COLOR=blue! important][COLOR=blue! important]engine [COLOR=blue! important]light[/COLOR][/COLOR][/COLOR] was on and code P0155 was thrown, its says [COLOR=blue! important][COLOR=blue! important]O2 [COLOR=blue! important]sensor[/COLOR][/COLOR][/COLOR]
bank 2 sensor 1. Could this be a culprit to loss of [COLOR=blue! important][COLOR=blue! important]performance[/COLOR][/COLOR], what does the O2 sensor tell the [COLOR=blue! important][COLOR=blue! important]engine[/COLOR][/COLOR] to do? My other question is how long does this have to be a problem before the computer activates the [COLOR=blue! important][COLOR=blue! important]check [COLOR=blue! important]engine[/COLOR][/COLOR][/COLOR] light?99 K1500 Suburban LT "THE BEAST"
5.7 K&N & True Dual Exhaust
Hypertech III
05 17" Silverado rims
99 LS 1500 5.3 "THE MULE"
Reg Cab Long Box
285/75/16E Dunlop Rover M/T
___________________________
Jason
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05-25-2009, 05:34 PM #2Legend
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We just had a post up that explained o2 sensors.
You can find it here.
Bank 1 is driver's side, Bank 2 is Passenger's side.
Sensor 1 is up (forward) of the cats, sensor 2 is down from the cat (nearer the tailpipe)Steven
"The Sarge"
1999 Chevy Suburban LT- K2500
7.4 454 Vortec, 4WD
305/70/16 on Eagle Alloy
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05-25-2009, 07:19 PM #3Master Mechanic
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So, you were paying attention in class today...........Ha, Good Job.
JeffJMoney02
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05-25-2009, 08:41 PM #4Legend
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So I figured it out, but now the current O2 sensor will not break free, but my number four spark plug was very nasty, so I am hoping that was causing the sensor to throw a code. No black or oil just alot more white and corroded looking then the other seven
99 K1500 Suburban LT "THE BEAST"
5.7 K&N & True Dual Exhaust
Hypertech III
05 17" Silverado rims
99 LS 1500 5.3 "THE MULE"
Reg Cab Long Box
285/75/16E Dunlop Rover M/T
___________________________
Jason
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