[digcot 65]

The battery voltage is 12.35 volts so that`s ok Ignition lights up headlights work also , I ran the starter on the bench with the battery and it ran fine On the circuit the 12 volts pos goes to the starter relay, ,so I have to check its getting there I have taken starter relay out
Len

Can someone tell me where FUSE BOX -SATELLITE (p109 )IS PLEASE ITS THE IN LINE FUSE FOR WHEN THE IGNITION KEY IS TURNED TO START

 

[digcot 65]

The battery voltage is 12.35 volts so that`s ok Ignition lights up headlights work also , I ran the starter on the bench with the battery and it ran fine On the circuit the 12 volts pos goes to the starter relay, ,so I have to check its getting there I have taken starter relay out
Len

There is an in line fuse ,which feeds the starter relay In the manual it is listed as FUSE BOX SATELLITE ( p109) can someone tell me please which actual fuse is this I can then tace to see where the voltage is being lost to the starter solenoid Len

 

[mowog73]

On wiring diagram pg 15.1, it says Fuse 1, 30A, in the under bonnet fuse box for the brown (N) wire. It also points to a 10A fuse on the white w/red tracer (WR) wire that goes to the ignition switch. The fuse is on the main fuse block, Fuse 19.

 

[digcot 65]

On wiring diagram pg 15.1, it says Fuse 1, 30A, in the under bonnet fuse box for the brown (N) wire. It also points to a 10A fuse on the white w/red tracer (WR) wire that goes to the ignition switch. The fuse is on the main fuse block, Fuse 19. View attachment 139072

Thanks for the info I was going to check it out today,but I tripped over this morning and hit the corner of a brick wall,so Im having a rest from cars until after Christmas This is just in time for Christmas photos Thanks Len

 

[IanMc]

OUCH!!! - get well soon Sir.

 

[Roverlike]

There is an in line fuse ,which feeds the starter relay In the manual it is listed as FUSE BOX SATELLITE ( p109) can someone tell me please which actual fuse is this I can then tace to see where the voltage is being lost to the starter solenoid Len

May I point you again on this thread: MG F/TF Fuse & Relay Listing

Where you will find exact picture where fuse number 19 is in the sattelite fuse box:

 

[digcot 65]

May I point you again on this thread: MG F/TF Fuse & Relay Listing

Where you will find exact picture where fuse number 19 is in the sattelite fuse box:

View attachment 139075

Thanks for all the help Ive been given I am quite shaken up after the fall ,my neck hurting the most. I think it will be a good idea to have a rest from the car until after Christmas
I WISH ALL FORUM MEMBERS A VERY MERRY CHRISTMAS AND A HAPPY NEW YEAR and lets hope everything improves Len

 

[D4KGP]

Thanks for the info I was going to check it out today,but I tripped over this morning and hit the corner of a brick wall,so Im having a rest from cars until after Christmas This is just in time for Christmas photos Thanks Len

Take care and try to enjoy the Christmas break.

 

[mowog73]

Tis but a scratch

At least you have a few suggestions to look into.

 

[digcot 65]

Tis but a scratch

At least you have a few suggestions to look into.

Thats what they said to Charles the first

 

[digcot 65]

Thats what they said to Charles the first

Hello does anyone know which relay is the one out of the 4 shown, for the starter solenoid circuit

 

[mowog73]

If you have the electrical library book, then you can figure out the relay by the wires that go to specific pins in the plug that plugs into the unit.

 

[Julian Foulger]

Starter relay - 5th pin out of the 8th terminal (MFRU output) and 4th and 6th pins of the 6 pin terminal (MFRU input) are unique to the starter solenoid relay. It shares 7th pin out the 8 pin terminal with the Lambda sensor relay.

Pin numbers from the cable entry side start at pin1 (top left) in the row closest to the terminals' 'catches'.

Do yourself a favour and use a voltmeter to identify the right pins/relay.

 

[digcot 65]

Starter relay - 5th pin out of the 8th terminal (MFRU output) and 4th and 6th pins of the 6 pin terminal (MFRU input) are unique to the starter solenoid relay. It shares 7th pin out the 8 pin terminal with the Lambda sensor relay.

Pin numbers from the cable entry side start at pin1 (top left) in the row closest to the terminals' 'catches'.

Do yourself a favour and use a voltmeter to identify the right pins/relay.
[/QUOMy meter had packed up but Ive bought another one grom tool station Thanks Len

 

[digcot 65]

Just having a last hour ,before a break for Christmas I am correct in thinking the relay box,is the one marked YWB 100970 Ive checked the voltage on all 4 relays and there isnt 12 volts ,going to any of the relays with the ignition on. I can get voltages of 2 to 3 on some ,but on the top contacts on one of the relays there should be 12 volts,which when the relay is energised goes to the solenoid Len
Sorry its a bit blurred

 

[Julian Foulger]

YWB 100970 is the one. Note that the blue connector can come loose and so can the 6 pin connector to YWB 100970 as the wires leading to it are too short from the loom so forcing the connector to disconnect from YWB 100979 (I manufactured a link wire to ease the pressure).

I know this as I had to replace YWB 100970 recently. All the connectors behind the ECU are important as they connect to the starter, the fuel pump, lambda, the ambient ¨temp sensor (and therefore the engine fan) and the list goes on! Check the blue one is fully engaged (in fact check all of them, particularly those with thick brown wires).

See https://andrewrevill.co.uk/EU3MultiFunction.htm for a clearer explanation of the relay connections.

 

[digcot 65]

YWB 100970 is the one. Note that the blue connector can come loose and so can the 6 pin connector to YWB 100970 as the wires leading to it are too short from the loom so forcing the connector to disconnect from YWB 100979 (I manufactured a link wire to ease the pressure).

I know this as I had to replace YWB 100970 recently. All the connectors behind the ECU are important as they connect to the starter, the fuel pump, lambda, the ambient ¨temp sensor (and therefore the engine fan) and the list goes on! Check the blue one is fully engaged (in fact check all of them, particularly those with thick brown wires).

See https://andrewrevill.co.uk/EU3MultiFunction.htm for a clearer explanation of the relay connections.

Bought a second meter off Ebay and that doesnt work Borrowed a friends and I have 12 volts on the top of the relays On the contact which when energised,will supply power to the pump and solenoid Getting somewhere at last with a meter that works. I can now rest for Christmas after I aks for a refund on the meter All the best to everyone HAPPY CHRISTMAS

 

[digcot 65]

Helo I hope you all had a merry Christmas and your stocking were full. Back to the MG F in the new year. I take it ,that as normal,the two wires which feed the actual relay coil one is the 12volt supply and the other goes to earth .Knowing modern cars,they sometimes have weird electrical connections Happy new year to all Len

 

[digcot 65]

Helo I hope you all had a merry Christmas and your stocking were full. Back to the MG F in the new year. I take it ,that as normal,the two wires which feed the actual relay coil one is the 12volt supply and the other goes to earth .Knowing modern cars,they sometimes have weird electrical connections Happy new year to all Len

Checking the relays on the engine management module .The fuel pump relay has 12v on contact 6/2 but doesn`t energise with the ignition on I .have ordered a replacement module,do these give much trouble Len

 

[digcot 65]

Checking the relays on the engine management module .The fuel pump relay has 12v on contact 6/2 but doesn`t energise with the ignition on I .have ordered a replacement module,do these give much trouble Len

Morning ,can someone please confirm that the top right relay ,is the fuel pump relay If it is,then the starter relay is energised as soon as the ignition is turned on the and the fuel pump relay is still off .Fortunately, Its only places like the forums,where these problems can be sorted by ,members who are clued up as I`m getting more and more confused Len

Checking the relays on the engine management module .The fuel pump relay has 12v on contact 6/2 but doesn`t energise with the ignition on I .have ordered a replacement module,do these give much trouble Len

Or is this the fuel pump relay marked A I`m getting somewhat mixed up Len