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View Full Version : Engine Runs rough while under 2000rpm under load.



Kwan
17th February 2011, 06:05 PM
Hey guys, my 16v 4age is having problems below 2,000rpm it just bogs down like it has no fuel. I've changed the fuel pump to a bosch 0580 464 050 which should push 3bar of fuel pressure... any idea's?

DRFTPG
17th February 2011, 06:44 PM
have you checked fuel filter or wat pressure its getting??

blair
17th February 2011, 08:10 PM
every 4a car i've been in bog's down under 2k LOL

ae71
17th February 2011, 09:05 PM
Generally small engines dont have power down low.

If its a bigport, it may have the TVIS jammed open.

Also check cam and ignition timing, spark plug gap and condition (also signs of rich/lean). check and maybe clean contacts on in dizzy cap and rotor button.