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Okay, so usually when there are a large number of codes that show up at one time they are usually related, so one problem could cause multiple codes to appear. Here is a link to a trouble code reference sheet for the 96 - 98 Acura TL Acura 9698 3 2TL Trouble Code Info
From this sheet we can see that your issues all relate to your o2 sensor heater circuit, so the first step would be to check all your fuses, the problem could be as easy as your o2 heater circuit fuse is blown. next i would check the connections to the o2 sensors themselves, make sure you have good connections and clean the connections with some di-electric grease which you can pick up at any autostore and spray it in both connectors (the wiring harness for the car and the connector attached to the o2 sensor) let them dry then reattach them. if this does not fix the problem sadly you might have to start replacing the o2 sensors. Good Luck
This is a bank 2, sensor 1 code, which means the computer is picking up a problem with the O2 sensor that is located before the catalytic converter on the front bank of cylinders.
Hope this helps, if you need more info, just ask, Dave
Canadian Tire Or Acura Dealership Sell Manual Book ..
But if your Lucky you can download it from Goggle Like Exemple
Download Acura TL 1998 Electrical Diagram ..Then you take the one you need ...
GET A SCHEMATIC OF 02 SENSOR CIRCUIT. IN MOST CASES YOU WILL HAVE 4 WIRE. 1= 12V FOR HEATER 2= GROUND FOR HEATER 3=REF VOLTAGE FOR SENSOR 4=SIGNAL RETURN TO PCM
When O2 sensor is bad the check engine light coming on is a warning. If you leave it go the computer will go into "limp" mode till it is replaced. You have to give the computer time to recalibrate itself after replacing, up to 150 or so....
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