had my sti in for a test during the week and failed emissions. very like a lamba sensor do people think? car has the oem cat and standard exhaust system on.
Have a fuel pressure regulator on it but have it set at 3 bar without vacuum which is normal fuel pressure for them. oem ecu and doesn’t burn any oil engine is new. lamba is only reason I can think of why it failed.
Have a fuel pressure regulator on it but have it set at 3 bar without vacuum which is normal fuel pressure for them. oem ecu and doesn’t burn any oil engine is new. lamba is only reason I can think of why it failed.