Demodave New Member Messages 3 Reaction score 0 Car Honda Accord SE 2002 Jul 3, 2023 #1 Hi friends, my Accord has recently been coming up with engine code P0420, this shows as a catalyst problem, could this also be a Lambda sensor problem. Cheers Dave.
Hi friends, my Accord has recently been coming up with engine code P0420, this shows as a catalyst problem, could this also be a Lambda sensor problem. Cheers Dave.
F6HAD Affiliate / Co-Founder Staff member Messages 13,854 Reaction score 751 Location Halifax Car 2009 Accord IDTEC Jul 3, 2023 #2 Yep either leaking exhaust, bad catalyst or failing lambda.
Demodave New Member Messages 3 Reaction score 0 Car Honda Accord SE 2002 Jul 7, 2023 #3 F6HAD said: Yep either leaking exhaust, bad catalyst or failing lambda. Click to expand... Thanks for your help.
F6HAD said: Yep either leaking exhaust, bad catalyst or failing lambda. Click to expand... Thanks for your help.
