volvo 940 lpt no start

[carl13]

hi all,
got a
xxxxxx Volvo 900 Series 2.3 (1998)
Model 940 940 CELEBRATION LPT
Engine Size 2316 cc
Engine Model B230FK
Manufactured 1998
Registered 02-01-1998
Transmission MANUAL
Colour BLUE

in garage.

was running fine,moved car failed to re-start next morning.

checked all systems ie, crank sensor,timing belt etc.
end result- correct fuel rail pressure,spark,DRY PLUGS
NO fuel injection pulse at injectors.

found this on internit-
# Engine will not run at idle
# Air-fuel mixture is too rich (this can damage catalytic converters)
# No fuel pump operation, butthefuel pump operates when its relay is jumpered between pins 30 and 87/2
# The engine will not rev higher than 3000 RPM
# Engine will not start, spark plugs are dry and the ignition system produces spark.When asked how the failure occurred and how it affects the car, nearly 95 % of the time the answer is: it worked properly when turned off, afterwards the engine would no longer start. Beyond oxidation and turning off your engine you need to understand these two facts. 1. The age of the controller is the main enemy here, not the actual hours of operation 2. The controller will fail mostly after turning the off the engine.

vehiocle becoming a bit of a problem.

any help would be much appreciated.

carl13:hmmmm2:

[racin-snake]

is this the five cylinder ? also these are very bad for tappet jacking so just get a good battery and keep cranking till with your foot on the gas till it lights up 1 cylinder at a time .it will start honestly ive had 2 like this

[jimdollar]

You may find that the fault is the resistor pack on the drivers side wing, it looks like 4 white resistors all bundled together , often when you lose the injector pulse this is the cause, one way to test it is to bypass it. If you have a wiring diagram and are sure which of the two wires on an injector is the live feed from the relay, give it a voltage and try starting it.

[carl13]

hi,

no its a four cyl, thanks.

will take a look at resistor pack monday.
not shure if the pack is fitted on this late model but well worth a look.

thamks, carl13.

p.s. odd thing is when i check for live at injector plugs with test lamp to earth i get a short 1second pulse which will run engine fo a second.