Running extremely rich, how to trick the ECU to get it run leaner?
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From: Kranj / Slovenia
Running extremely rich, how to trick the ECU to get it run leaner?
D16A9 - DOHC ZC engine, PM7 ECU.
After installing ITBs and Crespo Stage 5 camshafts, my car runs extremely rich. I know that this is normal. The point is that i'd like to get it to the tuner that is located 80miles from where i live. Are there any tricks to make it run a bit leaner?
After installing ITBs and Crespo Stage 5 camshafts, my car runs extremely rich. I know that this is normal. The point is that i'd like to get it to the tuner that is located 80miles from where i live. Are there any tricks to make it run a bit leaner?
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Junior Member
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From: Kranj / Slovenia
Re: Running extremely rich, how to trick the ECU to get it run leaner? (fast88std)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast88std »</TD></TR><TR><TD CLASS="quote">If you got all that good stuff on the car, why just not turn down the fuel pressure?</TD></TR></TABLE>
Haven't bought adjustable FPR yet
Any trick with sensors?
Haven't bought adjustable FPR yet
Any trick with sensors?
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Joined: Jul 2005
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From: Armonk, NY, USA
Re: Running extremely rich, how to trick the ECU to get it run leaner? (CRX-ZC)
you could possibly trick the coolant temp sensor into thinking the car is running 190 -200 degrees with a resistor. I know that is a trick used with colder temps to make the ecu dump more fuel, so maybe with hotter temps it will dump less fuel. you will have to research a bit exactly how to do it though. Just an idea.
Honda-Tech Member
Joined: Jun 2004
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From: los banos, ca
Re: Running extremely rich, how to trick the ECU to get it run leaner? (d16dcoe45)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16dcoe45 »</TD></TR><TR><TD CLASS="quote">you could possibly trick the coolant temp sensor into thinking the car is running 190 -200 degrees with a resistor. I know that is a trick used with colder temps to make the ecu dump more fuel, so maybe with hotter temps it will dump less fuel. you will have to research a bit exactly how to do it though. Just an idea.</TD></TR></TABLE>
not the coolant sensor...the IAT sensor....and im pretty sure all that will cause is the timing to be retarded...
one way would be to put a variable resistor inbetween the map sensor and ecu...if the ecu thinks there is less air coming in it should cut back fuel
not the coolant sensor...the IAT sensor....and im pretty sure all that will cause is the timing to be retarded...
one way would be to put a variable resistor inbetween the map sensor and ecu...if the ecu thinks there is less air coming in it should cut back fuel
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i have a similar problem. but i do have a regulator n it's set at about 45/48. is that high, cause i have shitty gas milage. d16z6 W/zex 59300 cam, i/h/e. kms valvetrain. i do have a 6 puck sprung clutch too but i dont think that would affect the gas. any help would be good. thanks
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