I have a 1996 k11 micra [bought it 4 years ago] and preparing for the worst, i ALSO bought a replacement engine with its ancillaries, gearbox ,ECU etc from a breakers .
When my micra developed similar problems to above ,ie engine cutting out
[after following the shortest route directions on my sat nav through rough terrain eventually coming to a halt in flooded inescapable tractor rutts and getting shoved/nudged out by a passing good samaritan with a landrover at the expense of my tailgate ]
I started to swap parts one by one [carburetta or whatever it is called ,temp sensors ,distributor , thermostats ,ecu,etc] even though it seemed self evidently like a fuel starvation problem with the engine starting well then accelerating before cutting out after 5-30 seconds
I tested the pressure of the fuel pump at a point just after the fuel filter[output] in the engine compartment, it indicated normal fuel pressure and the fuel pump in the fuel tank under the rear seats could be heard running/buzzing two or three seconds after the engine cut out , never the less I decided to remove and examine the fuel pump and pressure test it only to find it perfect ,on reinstalling the pump, after what seemed to have been a pointless exercise i then noticed [it pays to be slow and observant] within the flexible rubber fuel tank entry return pipe at about 1 inch from the end a white sticky substance which turned out to feel and look like chewing gum I removed it using a long screw whilst pinching the rubber in order not to push it further in
Now my micra which had been getting increasingly sluggish before the final bumping through rutts pushed the gum allong the fuel return line to block the tank entry spiggot causing it to become unroadworthy is whizzing along again
Was the the gum deliberately used by a repair garage to create future work or was it bad work shop practice using gum to temporarily block a fuel line while conducting work on an engine ?
The car had been repaired by myself for four years only to be out of my sight once when left in for mot welding three years ago.....hmmmmm
will bort, July 2012