Question about 2007 Chevrolet Malibu SS Sedan New Cars

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Wiring diagram 2007 malibu

Am looking for the ecm output wire to the fuel injectors

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What engine???? there are three

Posted on Sep 25, 2008

  • Jimmy
    Jimmy Sep 25, 2008

    here ya go........ mark as fixed thanx jimmy



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06 triburon no spark no injector pulse no fuel pump.crank sensor wires were bared and touching together. replaced sensor

Do you know how to test ecu computer circuits ? May have damaged the computer internally . For most make vehicles sold in US you can find free wiring diagrams at Then watch videos like this ECM Inputs and Outputs Diagnosis Also check out videos on wiring diagram reading .

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Hi. I have 2006 VW Jetta 2.0 TDI .I don't know why my car injectors socet hasn't got power electric? I changed Crankshaft sensor I changed camshaft sensor I changed injectors wiring harness.

Those sensors wouldn't affect power to the injectors.

You need a voltmeter, it's an electrical problem, so you need a digital volt/ohm meter (DVOM), or also called a multi-meter, and digital because many car circuits that are computer related operate at very low voltages or power demands, from milliamps to thousands of volts, like the ignition delivers to the spark plugs. So you buy a cheap multi-meter, then you also need a wiring diagram for your car to see how the fuel injector circuit works. but start there where you plugged in the new injector harness.

You are looking for power to the injectors, with key on. The injector harness has 8 wires; each injector has a power wire and a ground wire, so 4 of the wires in the harness should have power. At least on most American cars, the injector works by having the ecm control the ground for the injector . The power is constant. It is only when the ecm momentarily internally grounds the injector circuit that the injector fires. On your VW, the injector power wires and ground wires both go to the ecm.

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Hi, looking for a ECM wiring diagram on a Chevy Captiva 3.2 2007. Please

Your question is a little broad. Can you tell us the problem? If your having a problem with ignition or fuel system, something like that, I can help with wiring diagrams. If you need voltage and ground for pcm, I can't help with that. Can you narrow the problem down, a little?

To post a diagram of every little wire that comes off the pcm and show where it goes, is too much for me.

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05 Cad SRX. Codes PO261, PO 267, PO 273. Injector control circuit low. This is right bank on 3.6. Any ideas what to look for

Check fuse in under hood fuse box .Odd coils 15amp . This fuse powers both fuel injectors an coils on that bank.
The control module enables the appropriate fuel injector on the intake stroke for each cylinder. Ignition voltage is supplied directly to the fuel injectors. The control module controls each fuel injector by grounding the control circuit with a solid state device called a driver. The control module monitors the status of each driver. Each driver has a feedback voltage circuit which the engine control module (ECM) monitors. The injector control circuits are pulled-up to voltage within the ECM . The ECM can determine if a control circuit is open, shorted to ground, or shorted to a voltage by monitoring the feedback voltage. If the ECM detects the control circuit voltage is too low when the circuit is commanded OFF, this DTC sets.
Shorted injector's ? Go on you tube an check out videos on testing GM injectors by scanner Danner . He teaches automotive training classes .
Injector Circuit Wiring Diagram

Mar 07, 2016 | Cars & Trucks

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2001 malibu fuel getting to the fuel rail but not shooting to the injecters

First things first, what makes you sure the injectors are not firing?? Second is the Security light in the instrument cluster on? Explain what your situation is please, this could be anything from a ground wire to the ECM which by the way controls injectors on this Chevrolet but there are many things to look at to determine the answer you seek my car is not fueling. So lets start with the engine size is it automatic trans or manual what is the mileage of the auto also thanks. And what happened to get you in the situation of the car not starting like i was in the store came out it just did not start (example) thanks.

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Throttle body diagram

Two wires at injector one is +current and the other one is ground give by ecm.
take two wires one batt the other one ground touch both on injector if it spray then there is no +positive or no command from ECM
hope it helps

Apr 01, 2014 | 1989 Chevrolet Camaro

1 Answer

My fuel injectors will pulse twice, when attempting to start, then inexplicably quit causing the car to start just for a second. Replaced fuel pump w/new and sending unit w/good used, new filter. Injectors...

injector will spay if ecm see the engine rpm signal.
two wire each injector one for power and ground from ecm.
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hope it helps

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With the key on do the fuel injectors have one wire that shows (+) battery voltage of 12+ volts? If not check for a shorted engine wiring harness, also check all fuses marked "ECM" there should be two fo them. ECM 1 and ECM 2.

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