i need ecu codes for a 2001 civic

newyouth542

New Member
5+ Year Member
i need help with my check engine light, i put in a high flow cat converter, i reset my battery but when i drive for an odd number of hours the check engine light comes on. so i need the ecu codes so i can rectify the problem.
 

fventura03

New Member
Registered VIP
5+ Year Member
how would we give you the ecu codes?
 


FRODO

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Registered VIP
Registered OG
5+ Year Member
10+ Year Member
You dont need codes...it is because you put a high flow cat in...you need to buy/make an O2 sim.
 

newyouth542

New Member
5+ Year Member
FRODO said:
You dont need codes...it is because you put a high flow cat in...you need to buy/make an O2 sim.
sounds like a plan but what kind of 02 sim should i go with because theres the mechanical and i looked some up where you have do a little rewiring im just wondering which way to go
 




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