Does this car/engine(signature) have a knock sensor ? and the ability to retard timing if knocking is sensed ?

 

Yes, all F23 engines have a knock sensor that will retard timing if knock is sensed. They will also adjust for higher octane fuel and increase power with it.

Jon

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaF1Fanatic &raquo;</TD></TR><TR><TD CLASS="quote">Yes, all F23 engines have a knock sensor that will retard timing if knock is sensed. </TD></TR></TABLE>

Thanks Jon.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaF1Fanatic &raquo;</TD></TR><TR><TD CLASS="quote">
They will also adjust for higher octane fuel and increase power with it.
</TD></TR></TABLE>

Can you read my mind or something ?! 'cause thats what I was going to ask next. When exactly and how often does the ecu check for adjusting timing for higher octane fuel ?

 

Unfortunately I am not extremely knowledgable about the fine details, I just know from seeing dyno plots that our cars will pick up some HP and TQ with 91.

Jon

 

all accords prior to 2003 cannot make use of higher octane fuel. Only the 7th gen cars can do that.......

 

ok thanks.

just out of curiosity - would that apply to my 2001 Acura MDX also ? It has DIS though (dist less ign sys).

 

I would just go with manufacturer rated fuels. Thats usually what the factory ECU is mapped for. Sometimes if you put in higher octane fuel you lose power so you never know.