Colleydog91
Member
Hi my p38 no longer brings on the flow plug light, when I turn ignition on the relay clicks and I have power at the plugs.. but no light on dash, the light does work though as I can bring it on using nanocom.
Colleydog91
Member
Glow plug, not flow plug 
brianp38dse
Well-Known Member
There is a great big maxi fuse 80a iirc in the engine ecu housing behind the battery it looks like a flat bit of metal have a check of that.
brianp38dse
Well-Known Member
Here is a pic of a blown one
Colleydog91
Member
Hi, yes fuse is all good , relay is clicking and the plugs are all getting power , just no coil light on the dash
Datatek
Well-Known Member
Bad connection somewhere. I'd have to check, but possibly the feed for the lamp goes via the BECM. Have a look at RAVE.
Colleydog91
Member
Looks like connection from bcem is good as I can force the light on using nanocom, its weird
Unless connection from engine ECU to bcem
Unless connection from engine ECU to bcem
tomcat59alan
Well-Known Member
Check the big connector under the expansion tank for corrosion and the block connector's behind the A post kick panels
RangeRoller dt
Well-Sprung Member
ECU temp sensor okay? If it’s not connected properly it may take a nominal value thinking it’s warm so wouldn’t bring glows on.
tomcat59alan
Well-Known Member
It powers up the glows just doesn't put the light on Jack.
Colleydog91
Member
Hi I will check the connectors, I have recently fitted another engine so that connector under the expansion tank has been unplugged and re plugged however the light was working straight after the engine change and stopped working a few days after.
I think the temperature sensor is OK as it does bring the plugs on just not the light.
I think the temperature sensor is OK as it does bring the plugs on just not the light.
tomcat59alan
Well-Known Member
But the question is which connector/s does the link pass through.
Datatek
Well-Known Member
It will be in RAVE, if the OP does not have RAVE or cannot follow the schematics, I will look it up.
Colleydog91
Member
I will check all the pins in the big plug under the expansion tank tomorrow, that's the only one that had been disturbed, I take it I need to disconnect the battery again before I mess with it?
Datatek
Well-Known Member
That would be the safe option.
Check that the carpet and underlay in the drivers footwell is dry.
tomcat59alan
Well-Known Member
Always advisable.
Colleydog91
Member
OK, will do, I will let you know how i get on
Thanks
Thanks
Colleydog91
Member
Hi, good news , it was a connection in the big plug under the expansion tank I gave it a wiggle and pushed it in abit and the glow plug light comes on again, thanks for the help
Now I just need to get the key to resync and all back to normal.
Now I just need to get the key to resync and all back to normal.
Datatek
Well-Known Member
Good news thanks for letting us know
