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Location:
Brisbane
Registered:
August 2005
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4-AGE Black Cover 20v running too rich?
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Sun, 11 September 2005 23:00
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I have just completed a conversion with a Black Cover 4age 20 valve (into 89 SX). It seems to be running very rich (black smoke on hard accel and black soot on bumper near exhaust exit).
There are no error codes on the ECU, I think I have all the vacuum lines right, has new plugs, air cleaner is ok, tried resetting ecu and I have checked the timing.
Has any got any suggestions to either isolate the problem or solve it?
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Location:
wollongong NSW
Registered:
August 2003
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Re: 4-AGE Black Cover 20v running too rich?
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Mon, 12 September 2005 06:24
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is the O2 sensor connected?
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Location:
sydney
Registered:
October 2004
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Re: 4-AGE Black Cover 20v running too rich?
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Mon, 12 September 2005 07:23
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what oil are u using in the engine
cause in my silver top 20v i had 10w-30w oil or i think it was a lower grade
but when i was running that oil its use to smoke heaps when i plant my foot down or down shift in high rpm
but when i went 2 a higher grade oil gtx3 15w-40w
it doesnt seem 2 do it as often
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Location:
Brisbane
Registered:
August 2005
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Re: 4-AGE Black Cover 20v running too rich?
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Wed, 14 September 2005 09:49
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O2 sensor is connected and seems to be working ok.
Running GTX3 oil.
Fuel economy is still good (500k per tank).
The annoying bit is it gives a slight cough every time you bring your foot off the throttle as you pass over hills etc. That is why I though it was running rich at this throttle setting (ie 5% or something)
I take it there is no adjustment for CO2 etc on these?
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Banned by his request
Location:
moved to tamworth
Registered:
July 2002
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Re: 4-AGE Black Cover 20v running too rich?
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Wed, 14 September 2005 10:37
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think you will find your oxy sensor is buggered.it is running in wot mode{wide open throttle}.
mick
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Location:
Perth
Registered:
May 2005
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Re: 4-AGE Black Cover 20v running too rich?
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Wed, 14 September 2005 14:59
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was gunna say check your map sensor but not if your getting 500 km's froma tank. you would be getn like 80 and it would sound like a rotary 
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