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NG900 & OG9-3 Workshop NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible Technical Forum

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  #1  
Old 13th June 2006
Bryand Bryand is offline
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My Saabs: 1998 Saab 900SE 2.0 Turbo Convertible
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Default Check Engine Light

I have a 98 900SE Turbo Convertible, the CEL came on the other day, now the performance is alot worse than it was, the gas mileage went down 8mpg i took it to autozone and they said that the code showed the o2 sensor in the exhaust, there was a total of 6 codes, most of them said running to rich, front bank running rich, too much fuel, now they have a o2 sensor, but its bosch what should i get, i think that the problem is all the sensor and the other codes are related, here are the codes.

P0130
P1171
P0171
P1611
P0507
P0133

Any information would be greatly appreciated.
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  #2  
Old 13th June 2006
Saabohème's Avatar
Saabohème Saabohème is offline
 
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I am getting too lean for some of these:

P0130 Generic O2 Circuit (Bank 1, Sensor 1)

P1171 Saab Closed Loop, Lean Mixture

P0171 Generic System Too Lean (Bank 1)

P1611 Saab Check Engine Request, Short To Ground / Internal Module Malfunction

P0507 Generic Idle Air Control System RPM Higher Than Expected

P0133 Generic O2 Circuit Slow Response (Bank 1, Sensor 1)
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  #3  
Old 13th June 2006
Bryand Bryand is offline
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That's the same thing as mine, mine is running sluggish you think that the o2 sensor might be causing them? I mean its identical to yours.
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  #4  
Old 13th June 2006
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Saabohème Saabohème is offline
 
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Default

No, I meant I ran YOUR codes and pulled up what I posted (too lean, not too rich). You have OBDII, mine is OBDI.
The one that would concern me the most, at first, is P1611 Short to ground, internal module. Sounds like an internal short in an ecu by its description. I have not heard of a bad O2 sensor causing an ecu short. But if the ecu is shorting and you are running continuously lean, you could wreck the O2 sensor. OR, it may refer to a short inside the O2 sensor? Let is hope PMI or someone like him can shed some light here.

Last edited by Saabohème; 13th June 2006 at 01:06 PM.
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  #5  
Old 13th June 2006
Bryand Bryand is offline
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Thanks for the info man, I hope its nothing too major. I'll just wait on a reply.
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  #6  
Old 13th June 2006
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earthworm earthworm is offline
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Default

Bryand, you can also post this, and all those numbers on the OBD II forum. This they are dedicated to and they should have a ton of confusing info and data..

The Saab O2 sensor contains a resistor(at least many of them do) and if this is miswired or if it shorts out internally then some of these codes will be thrown...
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  #7  
Old 13th June 2006
Bryand Bryand is offline
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The car has sat for 16 months almost, I went out and unplugged the battery for 20 minutes and now when i turn it back to key switch on, the engine light is not on, so i figures what the hell, id take it around the block, it runs much better, its taking off like it used to and i drove it for 10 minutes almost no engine light, weird? I hope its nothing major but who knows i just did a full service on it yesterday, plugs vac lines, oil, filters and everything. So maybe it'll run better, if not how much am i looking at to replace an ECU?
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  #8  
Old 13th June 2006
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Saabohème Saabohème is offline
 
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Don't even think ECU yet. Wait to see if the codes come back and pray if they do it is a bad O2 sensor like you originally thought. I should not have even posted the ECU stuff. My fingers ran away from my brain. Do as EW suggested and see if the OBD forum guys can shed some meaningful light.
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  #9  
Old 17th June 2006
Windex Windex is offline
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Question OBD II Forum?

Earthworm:"... you can also post this, and all those numbers on the OBD II forum. This they are dedicated to and they should have a ton of confusing info and data.. "

Not that I need more confusing info, but where is the OBD II Forum located?

My 96 900S is running OK since the P1127 code was read Monday, and the CEL is off about 120 miles later, but it still isn't smooth 100% of the time as it once was...
Windex
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  #10  
Old 18th June 2006
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Saabohème Saabohème is offline
 
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Try some fresh plugs gapped no larger than .039 inches.
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