if you use a p28 ecu do you still need the secondary o2 sensor?
civicjunkie New Member 5+ Year Member Sep 22, 2009 #1 if you use a p28 ecu do you still need the secondary o2 sensor?
Raabe Hell yea I suck toes! Registered VIP Registered OG 5+ Year Member 10+ Year Member 15+ Year Member Sep 22, 2009 #4 Bamcis!
