Outer Limits 4x4 Board

I ahve a 1997 disco 3.9 .
It seems to have an iratic idel. When first started it revs high then settles down. Also some times whan i come to a stop from diving the engine revs drop down to almost stall. The other day i went to reverse uo a drive way and it stalled. any ideas?

sounds like a vaccuume leak. i had very similar symptoms with my buggy. look for a hose popped off or damaged running from the inlet manifold to the booster or dizzy or somthing. If you have a vaccuume gauge laying around you can teell straight away.

Andy

also you may need to reset the ECU and reset the base idle as well as cleaning the idle air control valve with carby cleaner.

That will probably sort it out

will get you some base idle setting details in a sec

Tom

i had the same drama.
basicly would idle fine while cold but once it warmed up and engine had been turned off and restarted while still warm would stall while in drive or even netural.

got a new airfilter
checked and replaced vacum hoses
disconnected cold fuel injector
set timming
adjusted airflow meter air bypass setting
set idle higher