Sorry its a long one, tried to explain all the symptoms, and the attempts at fixing it.
EA MPI 5 speed wagon
Often wont start, fuel pump doesn't fire up.
After anywhere from 3 to 50 turns of the key the pump fires up and the car starts, still usually takes another 3 attempts but.
When running cold and slight downhill, will rev to 5,000 no worries and goes pretty hard.
When warm, starves for fuel (smells like it anyway) will only go to 2 - 2,500 on flat road. Uphill (100k/h road) will cough and splutter wont go over 80k/h have to drop back to 4th. (get passed by VN's, not happy Jan)
At idle, when rough, it will nearly stall then pickup to about 1300rpm then near stall again. Can do this for a while or just smooth out.
Mate ran a light across the connector near the windscreen and said he couldn't understand the code coming from it.
Had a lose baffle in the tank, so I replaced the tank
Replaced fuel pump
Tried a second hand regulator
Tried a second hand green relay (fuel pump relay I think)
Couldn't find a brown one (EFI relay I think)
Now got a dissy module, but yet to fit it.
Sometimes if I rattle the relays it will start, but other times it wont. If I just keep turning the key sooner or later it starts anyway so not sure if actually does anything or is just coincidence.
Relays cost around $90 and $150 so dont want to just keep replacing the entire EFI system unless I know it the fault.
Anyone got any idea what is going on.
Any help appreciated, Gary