probably a dumb question bwth.
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probably a dumb question bwth.
I am running a 10.5:1 compression turbo charged a20 on a Holley commander stand alone with a ford turbo coupe distributer, RC 850 injectors.
For some reason or another the motor does not like to idle unless it is pig rich.
the AFR at idle reads 10:1(aem wide-band), while normally driving it reads between 13.5-14.5:1,and under boost 1-14 psi is a steady 12.5:1.
the motor only has about 350 miles on it.
there is a slight amount of smoke coming out of the exhaust. The smoke appears white,no blueish tint just white. The plugs read rich and the catch can smells like fuel, compression test reads around 160psi(cold) across the board, and the leak down reads 4% across the board.
Is there something i am missing or is it just the idle tune?
solid white = unburned atomized fuel ?right??
thanks for any help.
For some reason or another the motor does not like to idle unless it is pig rich.
the AFR at idle reads 10:1(aem wide-band), while normally driving it reads between 13.5-14.5:1,and under boost 1-14 psi is a steady 12.5:1.
the motor only has about 350 miles on it.
there is a slight amount of smoke coming out of the exhaust. The smoke appears white,no blueish tint just white. The plugs read rich and the catch can smells like fuel, compression test reads around 160psi(cold) across the board, and the leak down reads 4% across the board.
Is there something i am missing or is it just the idle tune?
solid white = unburned atomized fuel ?right??
thanks for any help.
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Re: probably a dumb question bwth.
Wow 10:1 at idle better get that baby re-tuned and set the fuel trim.
You are in the same boat as me 3 weeks ago, weather changed in my case, car idled rich; steaming white smoke and plugs were black all round. Next day it's all fine but I got retuned. Somebody suggested it was hg but in no way that it smells like antifreeze but rather some pungent ****. That problem is history now...
You are in the same boat as me 3 weeks ago, weather changed in my case, car idled rich; steaming white smoke and plugs were black all round. Next day it's all fine but I got retuned. Somebody suggested it was hg but in no way that it smells like antifreeze but rather some pungent ****. That problem is history now...
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Re: probably a dumb question bwth.
I am doing some checking.
The fuel pressure is at 42 psi whitch i close to stock pressure. I have lowered it to 36 psi but it didn't make much of a differance.
A little more info on air/fuel system:
I am running a edelbrock 70mm throttle body (5.0 mustang) with a ford idle air control valve, Skunk2 pro series intake manifold (b18 a/b), RC 850cc peak & hold injectors, GE fuel rail, Areomotive 1:1 fpr and a gm 3bar map sensor.
The fuel pressure is at 42 psi whitch i close to stock pressure. I have lowered it to 36 psi but it didn't make much of a differance.
A little more info on air/fuel system:
I am running a edelbrock 70mm throttle body (5.0 mustang) with a ford idle air control valve, Skunk2 pro series intake manifold (b18 a/b), RC 850cc peak & hold injectors, GE fuel rail, Areomotive 1:1 fpr and a gm 3bar map sensor.
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#9
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Re: probably a dumb question bwth.
hmmm...could be defective EMS unit you have there?
have you considered a OBD1 honda ecu with some good software....im sure it will run well on that...
have you considered a OBD1 honda ecu with some good software....im sure it will run well on that...
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Re: probably a dumb question bwth.
yes sir i have, at the moment i cant afford to purchace neptune ems, obdo-obd1 conversion harness, 4th gen dist and dyno time.
I am trying to fix what i have for the moment, till a few things line up.
I am trying to fix what i have for the moment, till a few things line up.
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05-22-2005 02:04 AM