Hi all montero! I have 2003 montero limited 3.8L.It very hard to starts may be one minute for key rotation then starts if I give gas.When engine started the idling is very good and no fluctuation.
I did so far:
-new temperature sensor(every 2)
-new battery
-new starter
-new generator
-new fuel pump
-new fuel pump filter
-new fuel regulator
-new PVC valve
-new spark plug(6)
-injector clean(check fine every 6)
-fuel system pressure: 0 bar when ignition on
-fuel system pressure: 3.2bar (when engine works)
-throttle clean
-Mass Air Flow Sensor(MAF) clean
-EGR valve clean
-engine pass with scaner(Autel MaxiDiag Elite MD802)
-I put over the first fuel pump relay to the second fuel pump relay's space, than I put the second relay to the first relay's space. The car does the same as before.
HELP! What more can I do? Sorry for my small English language knowledge.
I'm waiting for answers and thank you forward.
My Email:seksarithy@gmail.com

 

cranking for 1 minute is BAD.

I would look closer at the fuel pumps.

And check for spark at the plugs.

Reset the computer.

 

New fuel pump(denso)
how to reset computer?

 

A bad or going bad cam position sensor will also cause a hard/no start issue. You generally will get a MIL light for this though.

 

Did the fuel pump fix the problem? To reset computer disconnect battery cable and leave if off for 15-20 min. That should do it.