need some help guys. multiple codes.
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From: _Nor caL_ (Bay areA)
need some help guys. multiple codes. so after years from losing my first ls1. i finally have another. little project i picked up and plan on putting her through a makeover.
shes a 98 a4 z28 SOM.
so here are the codes. i know they are alot, any and all help is greatly appreciated. EDIT. used the search. guess the majority is because of headers. if i chage the 02 sensors think i would get rid of those circuit and heater malfunction?
P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
P0430 Catalyst System Efficiency Below Threshold (Bank 2)
P0463 Fuel Level Sensor Circuit High Input
P1133 HO2S insufficent switching bank 1 sensor 1
P1546 A/C Clutch start circuit lo voltage
I hope they are nothing to bad. i currently have an exhaust leak and the previous owner put back on the stock manifolds without the cats. i have the long tubes and ory just need the time to put them on. i know some of those codes are probably for rear o2s or something.
shes a 98 a4 z28 SOM.
so here are the codes. i know they are alot, any and all help is greatly appreciated. EDIT. used the search. guess the majority is because of headers. if i chage the 02 sensors think i would get rid of those circuit and heater malfunction?
P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
P0430 Catalyst System Efficiency Below Threshold (Bank 2)
P0463 Fuel Level Sensor Circuit High Input
P1133 HO2S insufficent switching bank 1 sensor 1
P1546 A/C Clutch start circuit lo voltage
I hope they are nothing to bad. i currently have an exhaust leak and the previous owner put back on the stock manifolds without the cats. i have the long tubes and ory just need the time to put them on. i know some of those codes are probably for rear o2s or something.
Last edited by stangkiller2005; Jul 28, 2012 at 09:40 PM.
Looks like all the codes, except the fuel ga, and the a/c clutch, are related to the cats, Snesors, or lack of...
Fix the exh leak[s]. Then, look at the tune and see if the unused input[s] are turned off.
Modify the tune as needed, dump the codes, and log some data...
Fix the exh leak[s]. Then, look at the tune and see if the unused input[s] are turned off.
Modify the tune as needed, dump the codes, and log some data...
Thread Starter
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From: _Nor caL_ (Bay areA)
Would the AC code be because its low r134a?
The fuel.guage.has to be because something about how fuel pump was.installed.. previous.owner said guage would work perfect until.after fuel pump.swap. Any idea? Maybe floater?
The fuel.guage.has to be because something about how fuel pump was.installed.. previous.owner said guage would work perfect until.after fuel pump.swap. Any idea? Maybe floater?
