Hi,
I recently purchased a replacement Stainless Steel exhaust system from Design911 for my Porsche 997.1.
The system contained replacement CATs and boxes and cost just over £1.5K
Having received the items promptly, and getting them fitted at my usual garage (along with all four lambda probes at the time of fitting the new system, as the existing ones would not free from the legacy system) - Everything was fine for the first 300-400miles, then suddenly the engine fault light was triggered, and following diagnosis the below fault codes were returned:
P0420: Bank 1 Catalytic converter system insufficient effect
and
P0430: Bank 2 Catalytic converter system insufficient effect
After clearing the codes, the engine light went off, and I assumed the issue was resolved however after a further 170miles, the same has happened again?
As the fault codes are relative to catalyst efficiency, and consistent across both independent banks, and as I have not experienced any fault with the vehicle prior to the replacement exhaust (and all four lambda probes at the time of fitting the new system) I can only assume the reason for the engine malfunction warning lamp and the faults stored is down to the exhaust system?
Have any you guys experienced similar or can provide some advise on how to fix this issue?
Thanks in advance
T
I recently purchased a replacement Stainless Steel exhaust system from Design911 for my Porsche 997.1.
The system contained replacement CATs and boxes and cost just over £1.5K
Having received the items promptly, and getting them fitted at my usual garage (along with all four lambda probes at the time of fitting the new system, as the existing ones would not free from the legacy system) - Everything was fine for the first 300-400miles, then suddenly the engine fault light was triggered, and following diagnosis the below fault codes were returned:
P0420: Bank 1 Catalytic converter system insufficient effect
and
P0430: Bank 2 Catalytic converter system insufficient effect
After clearing the codes, the engine light went off, and I assumed the issue was resolved however after a further 170miles, the same has happened again?
As the fault codes are relative to catalyst efficiency, and consistent across both independent banks, and as I have not experienced any fault with the vehicle prior to the replacement exhaust (and all four lambda probes at the time of fitting the new system) I can only assume the reason for the engine malfunction warning lamp and the faults stored is down to the exhaust system?
Have any you guys experienced similar or can provide some advise on how to fix this issue?
Thanks in advance
T