RobSharky
Active member
Hello everyone,
I recently rebuilt my ALH engine (conrod failure due to hydraulic lock) and fired it up last week:
http://www.youtube.com/watch?v=-Ub9fTpumVY
The engine itself sits perfectly at idle and I can drive it up to about 40mph without problem (Water/Oil bgood) but it lacks power from around 2000rpm onwards under normal load?
The turbo is a rebuilt unit so I don't think the issue is there so I can only assume it's fuel pump related? I've no black smoke out the back which leads me to believe the fuel/air ration is all good but that it's just not getting enough furthur up the rev range - engine revs freely enough above the 2000rpm when not under load.
Does someone have a diagram of the EGR/Turbo system on the ALH so I cna check all is well with the three control solenoids?
I do have VAGCom but the laptop isn't here this weekend so I've not been able to take readings as of yet for advance/retardation of the pump.
Thoughts on what I should check? Would the fuel pump being too far advanced/retarded cause power issues like this?
I recently rebuilt my ALH engine (conrod failure due to hydraulic lock) and fired it up last week:
http://www.youtube.com/watch?v=-Ub9fTpumVY
The engine itself sits perfectly at idle and I can drive it up to about 40mph without problem (Water/Oil bgood) but it lacks power from around 2000rpm onwards under normal load?
The turbo is a rebuilt unit so I don't think the issue is there so I can only assume it's fuel pump related? I've no black smoke out the back which leads me to believe the fuel/air ration is all good but that it's just not getting enough furthur up the rev range - engine revs freely enough above the 2000rpm when not under load.
Does someone have a diagram of the EGR/Turbo system on the ALH so I cna check all is well with the three control solenoids?
I do have VAGCom but the laptop isn't here this weekend so I've not been able to take readings as of yet for advance/retardation of the pump.
Thoughts on what I should check? Would the fuel pump being too far advanced/retarded cause power issues like this?