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i have a 85 rx turbo and the comp has stopped sneding to the fuel pump do i need a new one or can any one help me or will i have to go after markit

have you checked the fuel pump relay?
Its located under the dash (it clicks about once a second when you connect the green test connectors)

The ECU grounds the negaitve side of the relay (the positive side always has power when the ignition is on)

If the relay isnt clicking, then i suspect a burnt out relay coil or maybe fuse 11, or a toasted ecu.

yer check all my fuses and relays there good even checked fuel pump i just dont no. is there any way i can bypass the fuel pump. because ive put a bottle of petrol under the bonnet befor and just pump fuel in and its start but then dies

My fuel pump is on its way out( and if that is causing my intermittent miss on #2 there will be some hat eating). I've pulled it down from its bracket, tested it with a battery until a belt from a hammer has got it going. Maybe you could wire in your own power supply to your fuel pump bypass the ecu ? still wondering the power connection between the egr solenoid and fuel pump relay ? a post to be read

jono wrote:.... Maybe you could wire in your own power supply to your fuel pump bypass the ecu ? still wondering the power connection between the egr solenoid and fuel pump relay ? a post to be read

oh i'd be careful about that, the ecu stops the fuel pump if the engine stops rotating, i'd say a safety reason in that.

I think peterxturbo needs to check any grounding to the ecu, without proper ground can show strange symptoms.

OK you culd incorporate a tachometric relay or vacuum control for safety sake, and then there is those switches installed on Triumphs that should you roll over and end up the wrong way the switch kills fuel pump

hey do you guys no any one in qld who could help me or do you no any one who has a ecu system