Fuel pump ?

[talisman]

I will shortly own a 2.4 / 89 surf. Read a few threads and im confused.I assume the EFI engine is electronic injection and would i be right thinking my old girl will use a mechanically driven injection pump, plus a fuel pump? Or does the 89 still have electronic injection? Will get a manual and subscibe once i take ownership lol.

[TonyN]

The difference is the fuel pump itself, its not common rail/electric injectors, etc. and both look similar but on EFI trucks the pump is ECU controlled and electronically adjusted, non-EFI trucks have the same as the older UK pickups, its most mechanicaly controlled, ie.. throttle cable, weight driven timing control, etc....

[talisman]

Without looking i cant check. When did ecu control replace mech control? Got a feeling it was 1990? For servicing ,fault finding is one better than the other? Has mech control any real downside?

[TonyN]

theres very little difference, I'd assume the EFI trucks are vaguly better MPG or performance, the mech pumps are better if you're a technophobe and still pretend electricity is evil, but the EFI pumps are much easier to do things to like change the seals, as there isn't so much gubbins bolted to them.

Non-EFI trucks are getting on a bit, so only advantage is they should be cheap, but will have more wear. I'd personally prefer a EFI one, just cos they are less complicated to work on.

If anything goes wrong with hte pumps, used ones are easy to find, probably EFI one more so, cos there are more EFI trucks around and not overly expensive, so it dosn't really matter, apart from changing leaky seals and the odd sensor, you won't be able to do much to it anyway, and paying a deisel specialist £6-800 for 're-con' your one on a truck thats only worth £1k is really not worth it.

EFI is about 90/91 on...there are prefacelift EFI trucks around, they overlapped by a year.

Its really simple to see the difference, EFI trucks have a idleup switch, non-efi trucks have a knob you have to twist. The metal part of the intake say TURBO-D on older ones, and EFI DIESEL on the EFI ones....

[talisman]

Thanks Tony, spot on reply. Im in Devizes not to far from you. Are you back in business? How about mot"s? If i decided on a major service, could i book in and drive away the same day?