Rough Idle after vafc install
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Rough Idle after vafc install
I just installed my VAFC (p28 ecu d16z6) The install went fine, t=I turned the ignition key to "on" and the unit powered on perfect. All teh sesnors had a voltage reading. I started the engine and it idled perfect for about 10 seconds then it sputered out and died, started it back up and ran fine I hit the throttle and it hesitates bad. The car is running REALLY rich tere is gas all over the ground behind my muffler
I bought eh vafc used from a friend who had it on a 2003 EX civic but all he could use it for was a Tach. When I turned the unit on for the first time the "inital setup" did not come up becuase it had been performed previously on his car. How can I get to this setup again? I think that will solve my problem.
any help would b great.
thanks
I bought eh vafc used from a friend who had it on a 2003 EX civic but all he could use it for was a Tach. When I turned the unit on for the first time the "inital setup" did not come up becuase it had been performed previously on his car. How can I get to this setup again? I think that will solve my problem.
any help would b great.
thanks
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Re: Rough Idle after vafc install (92lxsedan)
the onl reason my firend could use the unit for a tach is because it was not compatible with his motor, all features work on teh unit. just need to be programmed i think
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Re: Rough Idle after vafc install (92lxsedan)
o and when the vafc was installed there was no CEL but when I unplugged it the motor ran fine but I had a CEL but i belive it is due to the VTM signal wire since the VAFC routes it back to the sensor instead of the ecu
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Re: Rough Idle after vafc install (92lxsedan)
Make sure all the settings are set to the stock settings. Make sure the fuel corrections are at 0 throughout the powerban etc etc. That's probably the reason you're running so rich and why your car is sputtering.
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Intialize resets it to run flat, like new, so if you "intialized" it you reset it and now it is running on the wrong number of sensors, throttle settings, yadda, yadda, yadda.
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Re: Rough Idle after vafc install (92lxsedan)
setting mode then air correction? I'm at school now but we get a break soon so I wanna go try this.
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Re: Rough Idle after vafc install (92lxsedan)
NOTE: this is why used engine management systems are not a great idea to buy.
it was set for a different engine, tuned differently, you need to get the thing tuned by a pro/someone with a wideband.
did you get the update on the install diagram from apexi?
best of luck
it was set for a different engine, tuned differently, you need to get the thing tuned by a pro/someone with a wideband.
did you get the update on the install diagram from apexi?
best of luck
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Re: Rough Idle after vafc install (92lxsedan)
Are you running the old silver face VAFC? To my knowledge those do not work with iVTEC... only the new VAFC2..
Reset the thing and start over.
Reset the thing and start over.
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Re: Rough Idle after vafc install (redlinetuning)
i think ijust figuredoutmy prob i think i installed the throttle signal wireo n teh wrong one (7th from left on teh top) its supposed to b on the 6th hopefully this solves my prob
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Re: Rough Idle after vafc install (92lxsedan)
ok fixed the wire prob but still haing the same prob. When i did hte intial set I wasnt for sure how to do the throttle position self learn thing. Do i just hold the accelerator to teh florr for 10 seconds then let off? any help would be GREATLY appreciated. this sux i just want this thing to work and I cant take it to a shop to get it tuned becuase there is no shop wihtin like 4 hours from my house
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Re: Rough Idle after vafc install (Grimm)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Grimm »</TD></TR><TR><TD CLASS="quote">NOTE: this is why used engine management systems are not a great idea to buy.
it was set for a different engine, tuned differently, you need to get the thing tuned by a pro/someone with a wideband.
did you get the update on the install diagram from apexi?
best of luck </TD></TR></TABLE>
Incorrect.
They can be just as effective as you want them to be.
You must of had some bad experiences but if you dont know what your doing or how to tune them and set them to stock then yea i'd say it wasn't.
You can intialize it and it sets all fuel to stock and you can just adjust your VTEC.
Pm me and i'll help you out
it was set for a different engine, tuned differently, you need to get the thing tuned by a pro/someone with a wideband.
did you get the update on the install diagram from apexi?
best of luck </TD></TR></TABLE>
Incorrect.
They can be just as effective as you want them to be.
You must of had some bad experiences but if you dont know what your doing or how to tune them and set them to stock then yea i'd say it wasn't.
You can intialize it and it sets all fuel to stock and you can just adjust your VTEC.
Pm me and i'll help you out
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Re: (92lxsedan)
You have stock injectors in still? Why do you need to correct the fuel that much? It's running like **** cause you're probably dumping a whole bunch of gas into your motor that isn't needed.
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Re: Rough Idle after vafc install (Happyman)
ok right now i have (this is before turbo setup)
d16z6
p28 ecu
Short Ram
Header
2.5 mandrel bent
Ebay Muffler
d16z6
p28 ecu
Short Ram
Header
2.5 mandrel bent
Ebay Muffler
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Re: Rough Idle after vafc install (Happyman)
went over the wiring about 30 times I initalize then set sesors to 6 in and 6 out then 4cyl and arrow going to the top right
is that all i have to do?
is that all i have to do?
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Re: Rough Idle after vafc install (92lxsedan)
i had the same prob before i had the map sensor wires backwards try swtiching the yellow wire and the white wire. see if you have the in accually goin out
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