08 SS code issues
05-26-2018, 12:11 PM
#1
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Join Date: 01-06-2013
Location: Tigard, Oregon
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08 SS code issues
Just picked up my 08 SS on Friday and love it. On the way home it threw three codes at me p2196 p2177 p2097. Car is surging and running rough.
I have read a bunch of posts and just wanted to know were to start. Fuel pump pressure? O2 sensor what would your suggestions be.
I have limited knowledge on this but want to do it myself and not chase this at the dealer or something like that.
thanks
Darrel
I have read a bunch of posts and just wanted to know were to start. Fuel pump pressure? O2 sensor what would your suggestions be.
I have limited knowledge on this but want to do it myself and not chase this at the dealer or something like that.
thanks
Darrel
05-26-2018, 01:33 PM
#2
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Join Date: 01-23-2009
Location: Fredericksburg, Virginia
Posts: 24,686
I would first look at the wires and connectors going to the #1 O2 sensor.
Find out what the previous owner may have had it tuned for. Like did it have a catless down pipe, different O2 sensor, different MAF etc. Maybe somebody put a switching O2 sensor in it instead of the wide band sensor it needs.
I don't know why you would suspect the fuel pressure, all 3 of those are expressly related to the O2 sensor.
My wild guess is that you need a new #1 sensor, or the car has a tune for equipment that was changed.
Of course, there is the ever popular "forgot to plug the MAF back in".
Are you sure about those numbers? The pairing of P2096 and P2177 or P2097 and P2178 Would be more probable.
Find out what the previous owner may have had it tuned for. Like did it have a catless down pipe, different O2 sensor, different MAF etc. Maybe somebody put a switching O2 sensor in it instead of the wide band sensor it needs.
I don't know why you would suspect the fuel pressure, all 3 of those are expressly related to the O2 sensor.
My wild guess is that you need a new #1 sensor, or the car has a tune for equipment that was changed.
Of course, there is the ever popular "forgot to plug the MAF back in".
Are you sure about those numbers? The pairing of P2096 and P2177 or P2097 and P2178 Would be more probable.
05-26-2018, 01:56 PM
#3
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P2096 and P2177 from what I find deals with a lean condition problem, where P2097 and P2178 are just the opposite. Say the pipe leading to the cat has a leak, I would think the sensor "see's" a lean condition. The system "maybe" adds fuel to correct this, resulting in an over rich condition?
Just for the fun of it, how many miles on this car?
Just for the fun of it, how many miles on this car?
05-26-2018, 07:34 PM
#5
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Join Date: 01-06-2013
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P2096 and P2177 from what I find deals with a lean condition problem, where P2097 and P2178 are just the opposite. Say the pipe leading to the cat has a leak, I would think the sensor "see's" a lean condition. The system "maybe" adds fuel to correct this, resulting in an over rich condition?
Just for the fun of it, how many miles on this car?
Just for the fun of it, how many miles on this car?
70k
05-26-2018, 07:52 PM
#6
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Join Date: 01-06-2013
Location: Tigard, Oregon
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I pulled the connector on the maf sensor car ran better was going to clean with maf cleaner just wanted to know if I spray the openings and the silver plates on top or where so I don't screw it up.
05-26-2018, 10:42 PM
#7
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Join Date: 01-23-2009
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Everything, if it is "MAF cleaner".
Does it have a oiled air filter?
If the bias is high the computer would try to richen, I think. The wide band senors are opposite the switching kind , IIRC.
I am not a turbo guy, but I think the bias code means bad/malfunctioning sensor rather than intercooler leaks.
A dealership won't be any better help than the guy down the street. You might try talking to the previous owner, you SS guys tend to take all your goodies off before you sell the car.
Does it have a oiled air filter?
If the bias is high the computer would try to richen, I think. The wide band senors are opposite the switching kind , IIRC.
I am not a turbo guy, but I think the bias code means bad/malfunctioning sensor rather than intercooler leaks.
A dealership won't be any better help than the guy down the street. You might try talking to the previous owner, you SS guys tend to take all your goodies off before you sell the car.
05-27-2018, 09:26 AM
#8
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Join Date: 09-07-2008
Location: Mebane, NC
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P2096 or P2097 Deal with the post cats O2 sensors
P2177 - P2178 are for the wideband.
Did the previous owner replace the down pipe? Did they replace turbo? There are 2 gaskets that would need to be replaced that could lead to a lean condition. Have they had any issue in the past? Is that the reason they sold it? Or as suggested, the wideband is bad. If you had a means of logging it would give a better indication of the problem.
Pulling the MAF connector and running it put it in open loop, and although I've not tried it my guess is that will probably not build any boost in that condition.
P2177 - P2178 are for the wideband.
Did the previous owner replace the down pipe? Did they replace turbo? There are 2 gaskets that would need to be replaced that could lead to a lean condition. Have they had any issue in the past? Is that the reason they sold it? Or as suggested, the wideband is bad. If you had a means of logging it would give a better indication of the problem.
Pulling the MAF connector and running it put it in open loop, and although I've not tried it my guess is that will probably not build any boost in that condition.
05-27-2018, 10:38 PM
#9
Senior Member
Thread Starter
Join Date: 01-06-2013
Location: Tigard, Oregon
Posts: 141
P2096 or P2097 Deal with the post cats O2 sensors
P2177 - P2178 are for the wideband.
Did the previous owner replace the down pipe? Did they replace turbo? There are 2 gaskets that would need to be replaced that could lead to a lean condition. Have they had any issue in the past? Is that the reason they sold it? Or as suggested, the wideband is bad. If you had a means of logging it would give a better indication of the problem.
Pulling the MAF connector and running it put it in open loop, and although I've not tried it my guess is that will probably not build any boost in that condition.
P2177 - P2178 are for the wideband.
Did the previous owner replace the down pipe? Did they replace turbo? There are 2 gaskets that would need to be replaced that could lead to a lean condition. Have they had any issue in the past? Is that the reason they sold it? Or as suggested, the wideband is bad. If you had a means of logging it would give a better indication of the problem.
Pulling the MAF connector and running it put it in open loop, and although I've not tried it my guess is that will probably not build any boost in that condition.
If you pull the MAF and run it that way will it hurt the engine?
05-28-2018, 08:58 AM
#10
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Join Date: 09-07-2008
Location: Mebane, NC
Posts: 1,016
If you have the MAF pulled it will run rich, the MAF also one of the IAT sensors in it used to sense inlet air temp so it probably thinks it -38 degrees outside. While not good for the engine and plugs, it will definitely hurt the CATs.