<!--quoteo(post=1606882:date=7 Jan 2011, 15:09:name=Peri280)-->QUOTE(Peri280 @ 7 Jan 2011, 15:09)
<{POST_SNAPBACK}><!--quotec-->Hei. Er egentlig ikke sikker på noen ting,men bensinfilter er ganske nytt(2-3år)
bensinpumpe og tank er også byttet .
Pluggledninger er også relativt nye (leste her på forum at dårlige pluggledninger gnistret i mørket,har prøvd men så ikke
antydning til noe slikt.)
Bilen har vert slik en gang før, da tok jeg ut kaldstartdysa blåste den rein og motoren startet som vanlig igjen.
problemet nå oppstod "over natta". feil ved drivstofftilførsel kommer vel somregel gradvis ?
Er det mulig å sjekke om kaldstartdysa får strøm med prøvelampe e.l .
Temp er jevn etter termostat bytte,(Bt termostat varte nesten 1 år).<!--QuoteEnd--><!--QuoteEEnd-->
http://www.pointedthree.com/disc/forums/sh...d.php?tid=13667
Jeg fant en side ved å søke litt. Jeg har null og nix peiling på kaldstartdysa, men skjønner den er nødvendig. Her står det i allefall hvordan man sjekker funksjonen:
1. Air flow sensor plate not adjusted correctly:
2. Fuel pressure is not correct:
Check fuel pressure at the fuel pump.
3. Cold Start valve leaking:
Check the cold start valve by removing the part from its location. Leave the fuel line
connected. Remove the connector, place the valve over a container and apply voltage to
on of the connectors and a ground to the other. Look for a coned shaped injection of fuel.
Turn off the power and wait a few seconds. Watch for leaks. If either of the above does
not work, replace the valve.
4. Vacuum Leaks:
Carefully inspect the complete engine for any cracked or worn hoses.
Look for connections that may be loose or have come loose.
5. Control Plunger in Fuel Distributor binding:
Check this by first depressurizing the fuel system. Do this by relieving the fuel pressure at
the warm up regulator. Remove the fuel filter and carefully move the plate up and down.
This movement should be free and with no binding. If you detect binding, replace the fuel
distributor with a rebuilt unit.
6. Fuel Accumulator and/or Fuel Pump Check Valve:
These hold pressure in the fuel system.
7. Fuel injector Clogged:
Pull the injectors and inspect for correct operation. Apply power to the fuel pump,
jump the wire terminal numbers 30 and 87a. Caution fuel will flow from the injectors
when the air flow plate is moved in an upward direction. Check for correct operation.
8. Control Plunger in the fuel distributor binding:
Remove the air cleaner and carefully move the plate up and down, do not force the plate.
If it binds investigate. If it is not simple to repair replace the unit.
9. Idle speed, Ignition Timing, and mixture out of tolerance:
Check and adjust all of the above.
Spesielt denne:
"Check the cold start valve by removing the part from its location. Leave the fuel line
connected. Remove the connector, place the valve over a container and apply voltage to
on of the connectors and a ground to the other. Look for a coned shaped injection of fuel.
Turn off the power and wait a few seconds. Watch for leaks. If either of the above does
not work, replace the valve."
Ellers ville jeg tenke at bensinfilteret eventuelt ville tettet seg over tid ja, og ikke over natten. Det er vel ellers bare å måle spenningen til kaldstartdysa? Den ene går til jord (eventuelt er jord gjennom dysa selv) og den andre kommer vel fra et eller annet sted. Man kan sikkert gjøre et "volvo-triks" ved å kjøre spenning rett på dysa om giveren ikke gir noe. Jeg har ikke studert dette inngående, men det lar seg vel uansett gjøre å måle med multimeter [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]