Most exhaust and emissions problems announce themselves well before they strand anybody. On a 2010-2015 Camaro, these are the ones worth acting on.
1. A P0420 or P0430 efficiency code
This one is usually early, which is good news, because it is cheap to fix early. Start by looking at DEF injectors.
2. An exhaust tick on cold start that quiets as the manifold expands
It rarely gets better on its own, and it usually gets louder before it gets expensive. Start by looking at catalytic converters.
3. A diesel that regenerates far more often than it used to
This is the symptom people put off longest and regret most. Start by looking at DEF injectors.
4. A check engine light that appears after fueling and clears itself
This one is usually early, which is good news, because it is cheap to fix early. Start by looking at catalytic converters.
What to Do Next
Not scheduled. Converters are warranted separately under federal emissions rules, so check coverage before you buy.
Emissions equipment varies by state of original sale on some model years.
Genuine GM parts, dealer priced, shipped from Dallas. our Chevrolet OEM parts catalog has the full catalog, or search for Camaro catalytic converters.
Where to Buy
- Genuine Chevrolet OEM parts
- Catalytic Converters
- Oxygen Sensors
- Def Injectors
- Diesel Particulate Filters
- Wholesale account setup



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