ongoing saga.. scoob wiring/electrical help!
#1
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ongoing saga.. scoob wiring/electrical help!
previously posted here: http://www.scoobynet.co.uk/bbs/showthread.php?t=300407
Ok, so downloaded the Engine control system wiring diagrams (for a Turbo) from ravensblade (page 26) and have a few related questions re: my fuel pump power problem..
Fuel pump relay: how to test its all working correctly?
(Got a rough idea where it is now..)
Fuel Pump control module? : where is it, and again how do i test it to make sure its all working correctly? Didnt know about this, but its on the wiring diag, so thought I would ask..
Fwiw,
I think Im gonna give Scoobyclinic a ring if I cant sort it within a couple of days and see if can get booked in to be sorted once and for all
Pat hasnt managed to get over due to conspiring circumstances...
..thoroughly cheesed off with all this..
Ok, so downloaded the Engine control system wiring diagrams (for a Turbo) from ravensblade (page 26) and have a few related questions re: my fuel pump power problem..
Fuel pump relay: how to test its all working correctly?
(Got a rough idea where it is now..)
Fuel Pump control module? : where is it, and again how do i test it to make sure its all working correctly? Didnt know about this, but its on the wiring diag, so thought I would ask..
Fwiw,
I think Im gonna give Scoobyclinic a ring if I cant sort it within a couple of days and see if can get booked in to be sorted once and for all
Pat hasnt managed to get over due to conspiring circumstances...
..thoroughly cheesed off with all this..
Last edited by chrome; 10 February 2004 at 09:40 PM.
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er- tell me more please.. ??
(altho to be fair BobR never mentioned any such thing AND my problem is happening WITH the standard ECU now also)
anyone know where the fuel pump control module resides? and how to test it?...
(altho to be fair BobR never mentioned any such thing AND my problem is happening WITH the standard ECU now also)
anyone know where the fuel pump control module resides? and how to test it?...
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Fuel pump control unit - don't think there is such a thing? I think it just uses the main and fuel pump relays controlled by the ECU in a stock setup? Have you tried replacement relays?
Richard
Richard
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relays are on the to do list...
fuel pump relay is the first stop.
I usually use a LINK, and the setup is far from standard now...
just using the JECS to help with cold starting, and turned down the fuel pressure to help (and not driving on boost) as I thought the problem was with the link directly.. now Im not so sure..
the wiring diagram shows a fuel pump control module.. thats what it says.. whether or not its a genuine standalone component- I dont know.. ??
fuel pump relay is the first stop.
I usually use a LINK, and the setup is far from standard now...
just using the JECS to help with cold starting, and turned down the fuel pressure to help (and not driving on boost) as I thought the problem was with the link directly.. now Im not so sure..
the wiring diagram shows a fuel pump control module.. thats what it says.. whether or not its a genuine standalone component- I dont know.. ??
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Fuel Pump control module? : where is it
alan
#7
Ecu Specialist
The ravensblade site is mostly about American models, there is no fuel pump controller on your car, the ecu pulls the pump relay coil to ground to actuate and the relay just switches on the fuel pump. So if you are having the same problem with both ecu's its a wiring or pump relay fault, the relay is the same one that used elsewhere, look up under the dash on the drivers side by the A piller, there are a couple up there, you can swap one over with the pump relay, best way to check is to take it out (pump relay) and use an independant 12v supply to switch it whilst checking for switched continuity through the contacts, if you operate it at 12 volts repetitively you will find out if its intermittant.
to add also check thet the ground connection from the pump itself is sound as you have changed/uprated the pump and may have had to remake connections ?
bob
to add also check thet the ground connection from the pump itself is sound as you have changed/uprated the pump and may have had to remake connections ?
bob
Last edited by Bob Rawle; 11 February 2004 at 09:17 PM.
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finally a result;
It was the Clifford Wireless fuel guard at fault..
This was fixed, and the car then ran perfectly again.. no lumpy idle, no mini-misfires...
Thank god
(looks like the LINK is absolutely FINE ! )
It was the Clifford Wireless fuel guard at fault..
This was fixed, and the car then ran perfectly again.. no lumpy idle, no mini-misfires...
Thank god
(looks like the LINK is absolutely FINE ! )
#9
Originally Posted by chrome
This was fixed, and the car then ran perfectly again.. no lumpy idle, no mini-misfires...
Gaz.
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