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Isuzu Dmax Fuel injection timing control circuit malfunction

  • dzof
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20 Jul 2017 16:20 #11292 by dzof
Hello,
This really gave me a hard time, need your help.
I am working on Isuzu Dmax 3 liter diesel engine, No start condition, i connected my scann tool;
Injection pump malfunction
Fuel injection timing control circuit malfunction
Pedal/throttle position sensor circuit high input
CAN: malfunction
no fuel no pressure, so I changed the injection pump with a used one,
the truck starts but poorly, rough idle and stall.
I connected the scan tool
Pedal/throttle position sensor circuit high input
Fuel injection timing control circuit malfunction.
I changed throttle position sensor,
I connected the scan tool again
Fuel injection timing control circuit malfunction.
RPM signal is ok, I don't own a scope to test the crankshaft sensor.
do you think it's a the crank sensor?

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21 Jul 2017 06:37 #11312 by matt.white
Is this the 4jj1 or 4jh1 engine? And it's not common rail is it? It's the Bosch pump with the module mounted on top of the pump? What year? I'll see what info I can find.


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21 Jul 2017 13:18 #11324 by dzof
it's a 4JH1-TC Bosch Engine 2006 with a module mounted on top of the pump . yes it's not a common rail. thank you matt

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22 Jul 2017 00:53 #11338 by matt.white
www.mcgrathauto.com.au/wp-content/upload...onversion-gate01.pdf

Have a look at page 17 and page 60 of that link. It's not looking good for the pump. I can see separate codes for the crank sensor but there's a possible cam sensor failure in the pump. Your code number is p0216?


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22 Jul 2017 09:43 #11345 by dzof
Yes it is p0216.
I changed a new pump. And it's ok. Thank you matt

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23 Jul 2017 23:39 #11379 by matt.white
Ah so you've fitted a new pump and it's all fixed now?


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24 Jul 2017 14:05 #11388 by dzof
Yes, the client came with another used pump, and it's all fixed :)

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19 Mar 2020 05:59 #38433 by zion.cage
Dmax Fuel injection system 4jj1 isuzu dmax 2009 ls , 3.0 , No power to the injectors , no pluse , no tach , . We got it to crank and it worked for 30 seconds and then turned off again . now same again . Engine cranks . Need some help

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