98 Tahoe O2 sensors?

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Beltrmd

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Hello
My sister's 98 Tahoe has the following trouble codes:

P0133: oxygen sensor slow response bank 1 sensor 1
P0155: oxygen sensor heater circuit bank 2 sensor 1
P0301: cylinder 1 misfire detected
P1133: oxygen sensor insufficient switching bank 1 sensor 1
P1153: oxygen sensor insufficient switching bank 2 sensor 2
P1351: ignition coil output high/pulse detected - ground cylinder 1

Any help or suggestions?
 

Beltrmd

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Can someone tell me if I need to replace 3 sensors? Also which one is bank 2 sensor 2?
 

lesterl

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Sensor 2 would be the one AFTER the CATALYTIC Converter and is irrelevant to function if bad.

Sensor 1 would be BEFORE the CATS and is important.

Bank 1 is drivers side

Bank 2 is Passenger side.

P1351 may be a bad ICM

P0301 may be a bad cylinder due to low fuel pressure or ignition or cylinder damage.

You will need to do some more investigation (check fuel pressure/ spark plug look, etc.)
 
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