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Post by thunder on Dec 23, 2007 12:26:46 GMT 11
Please help me,i bought a after market RPM meeter and don't know where to get the signal from the three wires off the pump of my 4JB1 engine
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Post by geeves on Dec 23, 2007 15:35:30 GMT 11
I trust this rev counter was designed for diesels
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Post by thunder on Dec 24, 2007 1:12:05 GMT 11
of course yes it was designed for diesels
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Post by mighty trooper on Dec 26, 2007 8:03:20 GMT 11
if you remove the dash unit and look at the circuit board you will most likley find a screw ir circuit labeld tach if you tap into that very carefull either on the screw or very carfully solder a wire into the cicuit by tracing it back through the plug to a wire you should be mint
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Post by thunder on Dec 27, 2007 22:20:14 GMT 11
There is no Isuzu dash board 4jbi-t is mounted on a heavily modified jeep
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Post by thunder on Aug 16, 2008 12:47:08 GMT 11
Any ideas guys
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nig
Isuzu Junior
94 TD Rodeo
Posts: 123
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Post by nig on Aug 16, 2008 16:16:42 GMT 11
I have just spent about 45 minutes trawling through my workshop manual, and there is very little there on the wiring out of the injector pump.
However, a few clues:
The tach wire is black with a red stripe when it gets to the back of the dashboard
The fuel solenoid is a white with yellow stripe.
So what wires have you got coming out of the pump? It might be easier to narrow it down by discounting those it cant be.
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