intermittent '747 problem

[Mika.Helander at softbit.fi]

I saw that in my VAN when EPROM "dropped" during driving... Later that
evening I figured out that one of the EPROM copper traces in '7747 daugher
board had manufacturing problem in one corner, when outer temp was about
-25degC trace got separated at 45deg corner...

I can dig out more spesific info if You need it...

-Mika

> Has anyone ever seen a '747 flash the check engine light 
> really fast < 0.5
> sec intermitently. This seem to occur when aduible knock 
> occurs but can
> occur without any other symptoms. Occasionally a slight hesitation
> occurs.........???????
> 
> This is a 350 TBI swap into a 83 malibu, the swap itself is 
> over a year old
> and this just started now.....??? Before this the only time 
> the SES light
> would come on is on the highway after ~40 mins of constant 
> state driving.
> 
> I have not check anything yet as  -25F weather makes for cold 
> fingers......
> 
> Otherwise the engine seems to run fine, start good, good fuel 
> economy, plugs
> were pulled yesterday and are a little bit on the lean side.
> 
> /Marc
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