2.9 transit efi guru needed

[madmartin]

Hi all, I've got a 2.9 mk4 ish transit has a annoying stutter which randomly occurs and some days is more perky than others. Also the idle speed varys from 900 to 1500 as n when. Can be cured by re starting, have replaced idle control and tps.
Apparently its got a 95 wiring loom the ecu is a 92vb-12a650-ca, 92 to 94. The loom has been badly mucked about with by a previous owner. Its also got a bosch hall effect dizzy, orange cap and separate amplifier and map sensor. 4 wire lambda sensors, only 1 each bank. Also no cats fitted
Are these matching parts? Every parts listing I find shows a motor craft dizzy with built in amplifier.

Only fault code is 11 system passenger?

[DodgeRover]

Have you checked for air leaks on the inlet side?

[madmartin]

Have checked for air leaks, none are apparent