Question about 1989 Toyota Corolla 2 Door

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Ecm could you tell me where the ecm is located

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Usually below either drivers or passenger seat

Posted on Dec 10, 2008

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On my 2001 Nissan Quest 3.3L #5 cilynder miss fire replace sparkplugs, wire, distributor, and injector still miss fire so I hook a noid light to it, it won't light up at all can it be the ECM and if you...


I don't know where it is, probably under the passenger side dash. But before condemning the ECM, check the wiring to that injector. First try to determine if it is the power wire or the ground wire for the injector which is lost. With key on, the yellow power wire should have voltage on it at the injector connector. This is independent of the ECM-only the ground wire goes into the ECM, to be internally grounded to pulse the injector. The #5 ground wire is a yellow-green wire.

If you have voltage on the power wire to #5, key on, then we know either the ground wire is bad (broken or open) to the ecm -or the internal ground for that injector is out, inside the ECM.

To determine whether it is the ground wire or the ECM, you will have to locate the ECM, pull the electrical connector off to it (Be sure and take the negative battery post off, first.), then locate the yellow green wire at pin #106 of the ECM electrical connector. Now test the continuity of that wire from the injector connector to the ECM connector-use a voltmeter set to ohms. If the wire has continuity, then the ECM must have a problem- the internal injector driver for #5 may have failed. Also look for a bent pin at #106, or anything amiss in the electrical connector. In most cases, it is not the ECM but a wiring problem.
Good luck. To locate the ECM, register for free at autozone.com, listing make, model, and year. Look under "repair guides", then component locations-it should tell you the location of the ECM.

Oct 04, 2014 | 2001 Nissan Quest

1 Answer

Locate Ecm


You don't indicate the type of vehicle involved so it would be impossible to tell you where the ECM is located. The one place it is most likely not is on the engine

May 13, 2013 | Cars & Trucks

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Wher is the ignition control module located in a jeep grand cherokee lorado


6 or 8 cylinder? Either way the computer (ECM) controls the coils. 6 cyl has a 'coil rail' and 8 cyl had individual coils on each cylinder. There are crankshaft and camshaft sensors that tell the ecm when to fire each cylinder

Dec 12, 2012 | 2000 Jeep Grand Cherokee

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Which pin on ECM goes to the Knock sensor?


the blue ( e-f ) ECM connecter pin F15 cicuit #496 ( Dk Blu wire )

Jul 06, 2012 | 1994 Buick LeSabre

1 Answer

P0340


I think the 2004 Accent only came with a 1.6 liter engine as far as I know. In any case below is as much information I have as far as your code including a wiring diagram of that circuit (CMP sensor). The wiring diagram doesn't tell the wire colors but does tell you where the wire goes or what "pin" number it is at the connectors. I included the connectors which is by number and marked the ECM connector for you. I had a picture of the CMP sensor location but not the ECM location but can tell you the ECM connector is located behind the dash fuse panel. Hope this helps....

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Mar 14, 2012 | Hyundai Motor 2004 Accent

1 Answer

I'm getting a P 1133 error code for my 2000 subaru outback limited wagon. Is it a faulty Heater circuit or an oxygen sensor? Also where are these parts located on the car? Thanks


The definition of Diagnostic Test Code (DTC) P1133 = "FRONT OXYGEN (A/F) SENSOR HEATER CIRCUIT HIGH INPUT"

Please note that DTCs (A.K.A. "fault codes") NEVER tell you what parts to replace.
The DTC here is telling you which CIRCUIT is malfunctioning. The circuit must be diagnosed to find the exact CAUSE of the malfunction.

The possible causes of this DTC are:
> Battery short circuit in harness between Engine Control Module (ECM) and front oxygen (A/F) sensor connector
> Faulty ECM

Please also note that this is NOT a typical O2 Sensor circuit. This is a 6-pin Air/Fuel Ratio sensor. Proper scan tool and datalink interface equipment is REQUIRED to properly diagnose these circuits.

Where the parts are located:
The A/F sensor is located in the exhaust pipe in front of the catalytic converter. The ECM is located Under the carpet in the passenger front foot-well area. The circuits are located between the two.

Please also Review this article:
What Else Could Be Wrong?

Sep 08, 2011 | Subaru Outback Cars & Trucks

2 Answers

Hi i was driving my car all of a sudden my engine light comes on and starts shacking. i bring it to the mechanic he tells me that i need a new car computer (ecm) i get a new ecm car the car works fine...


If the same mechanic keeps telling you to replace the ECM and the ECM does not make a permanent difference, especially after what, three ECM repalcements? Then yes, the issue is elsewhere. If the same mechanic also tells you the #4 is the issue, why then would they tell you to replace the ECM? This will not correct the problem with the #4 cylinder.
I suggest taking it to a different mechanic, tell them what happened - and have the direct issue addressed. Stop wasting your money on ECM's. Refurbished or not, the odds of getting bad ones that many times in a row is zero to nothing.
Please let ME know if you need further assistance.
carsandcomps

Aug 20, 2011 | 2003 Dodge Caravan

1 Answer

Does the ecm on a 1996 lincoln continentel have anything that has to do with catalatic converters.I would like to know if a new ecm will work without the catalatic converters being on there . (straight...


I can answer the first question. The year of your car will run without the cataltic converters and not affect the performance or fuel milage. Your ECM is not that sophisticated. You can call a parts store and they can tell you where the ECM is located

Jun 16, 2011 | 1996 Lincoln Continental

1 Answer

2000 pontiac grand prix se ecm location


located in air box beather box for intake.

Jan 11, 2009 | 2000 Pontiac Grand Prix

1 Answer

Looking for location of ECM


Hope this helps

UPLANDER 06 Elec Cont Unit (ECU); (left front of engine compartment), 3.5L
.
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