Test Description
WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
IMPORTANT:
Removing the O2S sensor may set a DTC. When finishing this diagnostic table, be sure to clear all codes.
- 4: The exhaust system has very low backpressure under normal conditions. If the exhaust system is restricted, a significant increase in exhaust pressure is noticed on the J 35314-A . See Special Tools .
- 5: This step will isolate the catalytic converter from the remainder of the exhaust system.
- 7: Confirming that the condition has been fixed is essential. If the symptom still exists and the vehicle has a dual exhaust system, proceed to Step 2 and repeat diagnostic procedure on the opposite exhaust pipe.
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| 1 | Did you verify the customer's complaint? | - | Go to Step 2 | - |
| 2 | Did you review the exhaust symptoms diagnostic information and perform the necessary inspections? | - | Go to Step 3 | Go to Symptoms - Engine Exhaust |
| 3 | Is the system equipped with dual exhaust? | - | Go to Diagnostic Aids | Go to Step 4 |
| 4 |
IMPORTANT:
Removing the oxygen sensor (O2S) may set a DTC. When finishing this diagnostic table, be sure to clear all codes.
|
14 kPa (2 psi) | Go to Step 5 | Go to Step 7 |
| 5 | Inspect the exhaust system for the following conditions:
Did you find and correct the condition? |
- | Go to Step 7 | Go to Step 6 |
| 6 | Replace the catalytic converter. Refer to Catalytic Converter Replacement . Is replacement complete? |
- | Go to Step 7 | - |
| 7 |
|
- | System OK | Go to Step 2 |