efi problem

[Jeffrey Engel]

Graham,

I had a similar problem when I replaced my engine.  Ran OK, then 
started blowing black smoke, etc.  In my case the fuel pressure 
regulator was bad.  My guess is (I returned the unit so no disection 
was possible): trash from the fuel line (new) plugged the return line 
and the fuel pressure went out of sight.

It doesn't have anything to do with inject times, but you didn't 
mention measuring fuel pressure. . .

Good luck!


> From:          Graham Hughes <hughesy at fastlink.com.au>

> Could you give me some ideas on a problem on a XF Ford 4.1 efi
> manufactured 9/1987 using BOSCH EEC-1V injection.
> The car up to now has been running well with normal maintenance.
> Then it started to consume heaps of fuel and blowing black smoke like
> an untuned diesel.
> Took the car to Ford for investigation and they said it must be the
> injectors need cleaning...this was done and the car was worse.
> Ford said and was confirmed by a second injection specialist that all
> the voltage inputs to the computer were correct and so the computer was
> replaced but to no avail. 
> The injectors should open between 2-10mS but on mine the minimium is
> 4mS.
> It appears to me to be an input telling the computer to enrichen the
> fuel mixture.......as the injectors are directly connected to the output
> of the computer. Checking all wiring and vacuum tubes now.
> After that I guess I'm lost.
>  
> Would be very thankful for any idears
> 
> Graham Hughes
> 
> Australia
> 
> hughesy at fastlink.com.au
 
je
jengel at fastlane.net

     "I can resist anything but temptation"
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