ClubWRX Forum banner

1 - 2 of 2 Posts

·
Registered
Joined
·
3,269 Posts
Discussion Starter #1
First, what is the difference? Secondly jim claims that i cannot use open loop fuel on my utec because it is a rev. 4 utec. HOwever i loaded 4.2 software onto the utec and i can enable open loop fueling and such? Whats the deal? Ive figured almost everything about the utec out i just want to know what the deal with this open loop situation is!
 

·
Registered
Joined
·
49 Posts
Closed loop fueling is where the UTEC does a MAF modification and the ecu is in controls the injector duty cycle. The UTEC fires the injectors but the ECU generates the duty cycle to fire them based off the modified MAF value.

Open loop is where the UTEC controls the injector duty cycle directly based off the MAF ready. You can modify the MAF value on top of that.

I have a Rev 4 UTEC and run open loop fueling.
 
1 - 2 of 2 Posts
Top