Wolf 3D :wallbash: Injectors not receiving power from ECU?
#1
:wallbash: Injectors not receiving power from ECU?
I'm not getting power from the ECU to the injectors.
to be more specific, i'm not receiving a ground(-) signal from 4W & 4Y.
I know there is a pos(+) signal to the injectors but not the pulsed(-).
I've got two wolf3d v4 and the results are the same, injectors do not fire due to lack of power.
does anyone have any ideas? i've got my ground-points covered (i believe);
from the engine harness, there are two grounds which are grounded... from the battery harness, the main ground is to the block.. the car gauges work, it'll turn over fine but no fuel / injector power.
i'm looking for any ideas here
to be more specific, i'm not receiving a ground(-) signal from 4W & 4Y.
I know there is a pos(+) signal to the injectors but not the pulsed(-).
I've got two wolf3d v4 and the results are the same, injectors do not fire due to lack of power.
does anyone have any ideas? i've got my ground-points covered (i believe);
from the engine harness, there are two grounds which are grounded... from the battery harness, the main ground is to the block.. the car gauges work, it'll turn over fine but no fuel / injector power.
i'm looking for any ideas here
#2
Rotary Enthusiast
iTrader: (1)
I'm not getting power from the ECU to the injectors.
to be more specific, i'm not receiving a ground(-) signal from 4W & 4Y.
I know there is a pos(+) signal to the injectors but not the pulsed(-).
I've got two wolf3d v4 and the results are the same, injectors do not fire due to lack of power.
does anyone have any ideas? i've got my ground-points covered (i believe);
from the engine harness, there are two grounds which are grounded... from the battery harness, the main ground is to the block.. the car gauges work, it'll turn over fine but no fuel / injector power.
i'm looking for any ideas here
to be more specific, i'm not receiving a ground(-) signal from 4W & 4Y.
I know there is a pos(+) signal to the injectors but not the pulsed(-).
I've got two wolf3d v4 and the results are the same, injectors do not fire due to lack of power.
does anyone have any ideas? i've got my ground-points covered (i believe);
from the engine harness, there are two grounds which are grounded... from the battery harness, the main ground is to the block.. the car gauges work, it'll turn over fine but no fuel / injector power.
i'm looking for any ideas here
you're using the base map that came with the pnp wolf, correct?
#5
Look at my site for info on the pin-outs
http://www.3rotor.jp/downloads/Rx7%2...%20Pinouts.pdf
#7
I did test the two ground/pulse outputs (pins: 4W & 4Y);
there is a "on switch" pos(+) running to the ecu which served as my positive wire source.
-no readings from that test on the ecu side;
my tests were:
volt meter at injector harness-end : nothing, no readings
volt meter at ecu side : nothing
------------------------------------------------------------------------
changed ecu's (2nd wolfv4) - same tests with same results
------------------------------------------------------------------------
swapped in stock ecu and did this test:
volt meter at injector clip negative / pulse wire : voltage jumped up to 1v / 2v nothing more.
i'm running out of options here, i've got 'el tons o' spark;
there is a "on switch" pos(+) running to the ecu which served as my positive wire source.
-no readings from that test on the ecu side;
my tests were:
volt meter at injector harness-end : nothing, no readings
volt meter at ecu side : nothing
------------------------------------------------------------------------
changed ecu's (2nd wolfv4) - same tests with same results
------------------------------------------------------------------------
swapped in stock ecu and did this test:
volt meter at injector clip negative / pulse wire : voltage jumped up to 1v / 2v nothing more.
i'm running out of options here, i've got 'el tons o' spark;
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#8
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place you Voltmeter red on the +12v and the black lead onto the lead from the wolf with the injectors off. Crank the engine if it pulses the Wolf is working and you need to look at the Injector +12v ...some engines will at cranking if faulty disconnect the +12 V so when you stop cranking it fires because you are no longer cranking.
Cheers
Michael Smith
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Michael Smith
#15
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the dreaded first time start for a Wolf ECU I bet. The first time you try to start your new ECU you really need to crank it fast. I don't know why but every new wolf I ever had was the same even on a old engine you need to put 2 batteries on it.
Cheers
Michael Smith
Cheers
Michael Smith
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