Thread: Classic > Stalling when hot and idling in D

1) Clean throttle body and throttle plate of all carbon and filth, check all inlet manifold bolts for tighteness and for any vacuum leaks.
2) check throttle air gap and adjust to .05mm
3) Warm engine and adjust base idle by crimping rear air pipe from stepper motor housing, then adjust air bypass with3/16" hex key until idle at 750rpm in park.
4) Check ignition timing, adjust to 9Deg BTDC and check advance is working.
5) Hold onto your hat while driving.


JC

you havent mentioned the TPS.......or are these the later non adjustable ones.....

i cant remember when they changed.......

Originally Posted by justinc

4) Check ignition timing, adjust to 9Deg BTDC and check advance is working.
5) Hold onto your hat while driving.
JC

yep,,, and yep.

A slow TPS is a major reason for this. Does it stall with load on from aircon? So clean the TPS also.
Also dirty injectors can contribute. At 180K your injectors are probably just dribbling away. They should be renewed periodically but nobody does.
4 Hole injectors make a big difference to idle quality.
Regards Philip A

Another great installment of advice - I got 5) right in Justin's post.....something everyone should know well when owning any landy.

New injectors were done on the 180K - simply a case of the low idle setting, re-set it a few revs higher and it all seems good.

Just got to sort the rest of the problems now.

Originally Posted by DEFENDERZOOK

you havent mentioned the TPS.......or are these the later non adjustable ones.....

i cant remember when they changed.......

OOPS! Sorry, I forgot the important bit. Zook is right, they aren't supposed to be adjustable, but they are if you remove them and slot the holes to allow rotation, as most are out of adjustment by now. It needs to be set at 320mV at rest, ignition on. I think it is between the red and green wires that you put the meter, although I can't remember if the wiring colours changed like in the disco1 , which have a different connector also, I'll have to have a look.
If this is out of adjustment, the ECU thinks the throttle is opening and changes the injector pulse width accordingly. This can cause poor idle definately.
I plead insanity due to having a late night.....

JC