Starting Problems, Starting with Throttle but Won't Idle Options

[nmkimosabe]

My 1974 1.8 with fuel injection will only start by manually opening the throttle but I can't get it idle and thus run properly. I recently had the AFM rebuilt and replaced the points, plugs, condenser and replaced the CHT sensor but the problem continues as it did before. I've looked for vacuum leaks to no avail with starter fluid. I now seek the expertise of the members of this forum for additional suggestions.

[Superhawk996]

Find a new mechanic that actually understands these cars. There is practically zero chance the ignition could fry an ECU.

There are possibilities I could imagine but they would all involve negligence on his part . . . Or pure coincidence.

[wonkipop]

Find a new mechanic that actually understands these cars. There is practically zero chance the ignition could fry an ECU.

There are possibilities I could imagine but they would all involve negligence on his part . . . Or pure coincidence.

i very much agree with this sentiment. (IMG:style_emoticons/default/beerchug.gif)

it is possible that some solder has gone dry somewhere on the ECU.
and it could be a cause of this persistent problem mr. nmkimosabi is having to experience no joy with.
its a pity he does not live down here near the north antarctic research station.
we would have his problem licked by now and i'm not making bold claims.
i've seen mike (our mechanic genius) pull the ECU out of one of my mates early range rovers. an L jet version. pulled out the circuit board and examined under his magnifier lens at his desk. spot the problem with the board and fixed it with a soldering iron. the boards in the L jet ECU are at big scale and are military grade construction.

needless to say the problem in the range rover disappeared instantly upon reinstallation.

i would not dismiss the ECU being the problem but if it is its not because it got "fried" - thats a pretty silly generalist sweep of the hands conclusion and does really indicate said mechanic has not got his head around the problem.

but it may be that there has been some degradation.
however i do not think the mechanic involved is capable of really getting to the bottom of this.

edit.
ps. the problem with the range rover was it started ok cold but as soon as it got hot it ran like (IMG:style_emoticons/default/stromberg.gif) usual sign of some electrical trouble somewhere that only becomes evident when component in question thermally expands in operation.

as an aside, has the EFI wiring loom been examined and tested for troubles.
you usually got to wiggle those around a lot while testing the pins.
any original wiring loom is getting pretty ancient by now and could also be a source of persistant but erratic troubles.