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Topic: Fuel pump problem 0 '94 2.0L DOHC Scorpio (Read 559 times) |
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meeko
Newbie
I'm a YaBB newbie!
Posts: 12
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Fuel pump problem 0 '94 2.0L DOHC Scorpio
« on: Oct 22nd, 2007, 1:27pm » |
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Hi all,
I seem to have an electrical fault with my '94 Scorpio (non frog-eye). It will no longer start and I have isolated this to an electrical fault with the fuel pump circuit.
If I manually supply 12v to the middle-pin of the intertia cut-off switch, the fuel pump starts and I can drive the car. Without this supply ths car wont start, so I presume it may be the fuel pump relay.
Does anyone know where this, as the Haynes manual is not at all clear.
Thanks,
Steve
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Fuel pump problem 0 '94 2.0L DOHC Scorpio
« Reply #1 on: Oct 22nd, 2007, 1:37pm » |
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In the Scorpio the fuel pump relay is in the battery side fusebox & it is the large green one with a purple top....not sure if this is the same as the Granada Scorpio though 
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Alastair
Full Member
2.3 Ghia X & MGB Roadster
Posts: 129
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Re: Fuel pump problem 0 '94 2.0L DOHC Scorpio
« Reply #2 on: Oct 23rd, 2007, 9:02am » |
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Steve
This could also be caused by a problem with the signal from the ECU to the Fuel Pump Relay. This signal provides a 12 volt supply to the pump safety switch and then to the pump. This signal is provided from the EDIS unit to the ECU (black and white wire) and can be checked as follows: -
Pin 1 EDIS to Pin 48 PCM (ECU) - black and white
A four channel scope
Channel 1 EDIS positive - Ignition feed
Channel 2 EDIS ground
Channel 3 PIP signal
Channel 4 Crankshaft Sensor
This applies to the '98 2.3 16V - not sure about the '94 2.0 but i'm sure others will know - Stuart ??
Alastair
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Fuel pump problem 0 '94 2.0L DOHC Scorpio
« Reply #3 on: Oct 23rd, 2007, 9:21am » |
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Not got a clue about the Granada, i missed the MK3, I had a MK2 then got lost in the Rover wilderness a bit till i returned to the Scorpio 
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
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