SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1998CAMARO SS, 2D COUPE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - TESTS W/CODES - 5.7LDIAGNOSTIC TROUBLE CODESDTC P0154 - HO2S INSUFFICIENT ACTIVITY BANK 2, SENSOR NO. 1DIAGNOSTIC PROCEDURES
1998 Chevrolet Camaro SS, 2D Coupe, Standard

Diagnostic Procedures

1998 Chevrolet Camaro SS, 2D Coupe, StandardSECTION Diagnostic Procedures
  1. Perform POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK , then go to next step.
  2. Start and warm engine to normal operating temperature. Increase engine speed to more than 1200 RPM for 2 minutes. Using scan tool, select ENGINE 1 DATA LIST and monitor Bank 2 HO2S 1 voltage. If voltage is varying outside a range of 350-550 mV, go to next step. If voltage is not varying outside range of 350-550 mV, go to step 4).
  3. Turn ignition on, with engine off. Using scan tool, review FREEZE FRAME and/or FAILURE RECORDS data and note parameters. Turn ignition off for about 15 seconds. Start engine and operate vehicle within conditions required for this diagnostic to run, and as close to conditions recorded in FREEZE FRAME/FAILURE RECORDS as possible. Select DTC function, then enter DTC P0154. If scan tool indicates that this test failed this ignition, go to next step. If scan tool does not indicate that this test failed this ignition, see DIAGNOSTIC AIDS.
  4. Turn ignition on, with engine off. Disconnect Bank 2 HO2S 1 harness connector. Connect a fuse jumper wire between ground and PCM connector (PCM side), HO2S high and low signal circuits. If voltage is less than 200 mV, go to step 8). If voltage is not less than 200 mV, go to next step.
  5. Remove jumper wire. Using DVOM, check voltage between sensor high and heater ground circuit on PCM harness side. If voltage is more than 375 mV, go to next step. If voltage is as specified, go to step 7).
  6. Turn ignition off. Disconnect PCM harness connector. Check continuity of Bank 2 HO2S 1 low circuit. Repair as necessary. After repairs, go to step 13). If circuit is okay, go to step 9).
  7. Turn ignition off. Disconnect PCM harness connector. Check resistance of Bank 2 HO2S 1 signal circuit. If resistance is more than 2 ohms, repair as necessary. After repairs, go to step 13). If circuit is 2 ohms or less, go to step 10).
  8. Check for poor sensor ground circuit terminal connection at Bank 2 HO2S 1 harness connector. Repair or replace terminal as necessary. After repairs, go to step 13). If terminals are okay, go to step 11).
  9. Check for poor sensor ground terminal connection at PCM harness. Repair or replace terminals as necessary. After repairs, go to step 13). If terminals are okay, go to step 12).
  10. Check for poor signal circuit terminal connection at PCM harness. Repair or replace terminals as necessary. After repairs, go to step 13). If terminals are okay, go to step 12).
  11. Replace Bank 1 HO2S 1 sensor. After replacing oxygen sensor, go to step 13).
  12. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  13. Using scan tool, select DTC, CLEAR INFO. Start and warm engine to normal operating temperature. Select DTC, SPECIFIC, then enter DTC P0154. Operate vehicle within conditions for setting this DTC. If scan tool indicates that this test ran and passed, go to next step. If scan tool does not indicate that this test ran and passed, repeat step 2).
  14. Using scan tool, select CAPTURE INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, go to applicable DTC test.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.