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HELP my MQ shorty wont turn off.

Posted: Thu Mar 25, 2010 10:51 pm
by johnnno004
Could it b the injection pump control motor? Could there b a fuse causing the problem? The pump control motor keeps ticking over causing the engine to cut off then fire back up. Does anybody out there no whats happening? cheers.

Posted: Fri Mar 26, 2010 12:29 pm
by nerida67
not sure if its relevate to u
my first 24v mq wouldnt turn off properly either
the problem was there wasnt 24v power to turn it of
so we had to stall to stop
i fixed the problem with 2 new batteries
never played up after that

Posted: Fri Mar 26, 2010 1:52 pm
by Patroler
cbf typing it again, but have a look at what i typed here, sounds similar, maybe the contacts and plugs ont he control unit could use a clean?
Sounds like it has power if its turning over the little motor.
http://www.outerlimits4x4.com/ftopic203 ... highlight=

Posted: Fri Mar 26, 2010 8:31 pm
by mickyd555
I assume this is an SD33??

Commen problem on both this engine and the 4 cyl version the fuel shut off solinoid shits it self and the easiest fix is to fit a manual lever to cut the fuel. A bonnet release cord or similar is normally used.

Posted: Fri Mar 26, 2010 9:37 pm
by Patroler
mickyd555 wrote:I assume this is an SD33??

Commen problem on both this engine and the 4 cyl version the fuel shut off solinoid shits it self and the easiest fix is to fit a manual lever to cut the fuel. A bonnet release cord or similar is normally used.
Had a shoelace tied from the injector pump lever thru to the radio ariel bracket on the A pillar once, want to stop the car just reach out the window and pull the string :) Was pretty easy to pull the solenoid apart and clean the contacts - worked after that fine!

Posted: Sat Mar 27, 2010 12:55 am
by anzac
last time I had this problem was a couple of french back packers POS that I felt sorry for.

Just put a switch in the power to your coil. Flick the switch and with no spark, engine can't run. Also made for a handy immobiliser.

That is assuming it's a petrol one.

Posted: Sat Mar 27, 2010 12:56 am
by anzac
sorry, just re read your post more carefully.

don't pay attention to my post please

good luck though.

Posted: Sat Mar 27, 2010 1:35 am
by johnnno004
No its a turbo sd33t. How do i tell if its a 24 volt or a 12 volt? its a 84'?