ploda

HI,
Ive just bought a scooby that was suposed to have a relay problem on the fuel pump but has now turned out a bit more complecated (stupid i know).. the car turns over ok but will not start. the fuel pump has no power although it does work when power fed to it, there is no spark, the engine management light does not come on and all the fuses relays are working fine.. can anyone help!!

richieh

check the wiring block before the fuel pump for voltage to the pump -its been known to be problematic.
how do you know its not sparking?
do a search on 'ecu reset' and see what fault codes it gives you then repost
cheers richie

[Davey]

Check the crank sensor, connect it up to a multi meter, it should produce around 1 volt when cranking. If its duff the fuel pump wont fire up as the ECU thinks the engine is not turning.

DaveD

iTrader: (2)

The fuel pump should prime when the ignition is turned on.

Try doing a search for 'fuel pump'. There is a connector under the rear seat that can corrode and cause problems - if this is the root of the problem, it's an easy fix.

How do you know there is no spark?

mart360

and cam sensor, it needs the two to make the map,

another one to check is the immobilisor (sp) it may not be working and preventing the fuel pump from energising, and the ecu wont do anything unitl it gets an ok from the immobilisor

Mart

ploda

hi guys, a mates coming over tonight to test this crank sensor, i carnt test the fault codes cos theres no engine man light on the dash cos it dont light up at all. can i try my mates ecu , hes got a uk sti k plate with the same plugs on the ecu?, had a look at the fuse/relay box and all wires and its all fine. def no spark at plugs cos turned over with plug on top of engine and got no spark.

ploda

ok people, sorted it, problem was woodruf key on the crank pully nackerd and somehow shut the ecu down, there was no power supply to the ecu (f***ing hard work findin that out), so took pully off wired a ign live to the 2 power points on the ecu and presto, just gotta sort pully out and im on the road!!!. MANY THANKS FOR ALL YOUR HELP GUYS.