Question about 2005 Nissan Maxima 3.5 SL

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Not idling Change engine harness n ECM n reprogram car not idling n dumping too much gas

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The fuel Mixture is wrong and the idle isn't set properly.

Posted on Apr 16, 2014


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I have a 1990 nissan 240sx. It sat for 10 years. 36000 miles on it. I have replaced fuel pump n filter, full tune up, ECM, all injectors and starter. It does start but will idle high but will not stay...

if you have changed the ECM it is possible that you will have to reset/reprogram the ecm to the sensors of the vehicle. Find a nissan shop that has the ability to reprogram the ecm and reset it.

Dec 27, 2014 | Cars & Trucks

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Change engine harness n ECM car would not idle , dumping too much gas

Check the EGR valve, may be stuck. Remove and check for carbon deposits. Clean with brake- kleen. on the part that goes inside the manifold. You can usually pull back the diaphragm with your finger.

Apr 16, 2014 | 2005 Nissan Maxima 3.5 SL

1 Answer

I just got my car scanned and a few codes pop up

Error Code: P0130
Oxygen Sensor (O2S) 1, Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
-Wiring harness.
-Oxygen sensor (O2S).
-Engine control module (ECM).

Error Code: P0505
Idle Speed Control (ISC) System - Malfunction
Possible Cause:
-Wiring harness.
-Idle speed control (ISC) actuator/Idle air control valve (IAC) valve.
-Throttle motor.
-Throttle valve tight/sticking.
-Engine control module (ECM).

Error Code: P0100
Fault Location:
-Mass Air Flow (MAF) Sensor/Volume Air Flow (VAF) Sensor - Circuit --Malfunction
Possible Cause:
-Wiring harness.
-Mass air flow (MAF) sensor.
-Volume air flow (VAF) sensor.
-Engine control module (ECM).

Error Code: P1491
Exhaust Gas Recirculation (EGR) Valve Insufficient Lift
Possible Cause:
-Wiring harness.
-EGR Valve.

Error Code:P1607
-Engine Control Module (ECM)/Powertrain Control Module (PCM)

Error Code: P0966
-Pressure Control (PC) Solenoid B - Circuit Low
Possible Cause:
-Wiring short to earth.
-Pressure control (PC) solenoid.
-Engine control module (ECM)/Powertrain control module -(PCM)/Transmission control module (TCM) .

Apr 30, 2013 | 2004 Honda Civic

2 Answers

Low voltage

Have you tried fixing the errors that the ECU is reporting?

Aug 13, 2012 | 2004 Nissan Sentra

1 Answer

How do i reprogram a cherokee ecm

Shouldn't need to flash the ECM for an engine replacement. If you replaced the engine with something other than what it came with you will need to change the wiring harness and the ECM to match the engine you put into the vehicle. Other than that the dealer can flash the ECM and it will cost you a lot because you can't do it. Figure about 150.00 to have that done plus shop materials and environmental disposal. Actually there are no shop materials, but they have a good excuse to charge you for them. Gotta love all those government regulations !!!! A rebuilt ECU for your vehicle is around 232.00.

Apr 23, 2012 | 1997 Jeep Grand Cherokee

1 Answer

I have a 1998 pontiac sunfire with a 3 speed transmission and i want to change it to a 4 speed transmission, what would i have to do to change this, i know the computer is one thing i would have to change,...

First you have to be sure that they made a 4 speed for this car. When you get it (assuming junk yard) you will need the ECM and the engine/transmission wiring harness. Depending on the year of the transmission you will probably have to swap some of the plugs in the harness, so don't throw the old one away. Once you have it all together, then you will have to have the ECM reprogrammed for the engine and transmission.

Oct 02, 2011 | 1998 Pontiac Sunfire

1 Answer


may need to get computer reprogrammed--send dtails to a pro

Sep 22, 2011 | 1994 Toyota Pickup

2 Answers

Installed a new ecm flashed and now the engine wont crank

you have to reprogram the keys and reset the parameters

Aug 12, 2010 | 2000 Ford Focus

2 Answers

2000 Jeep Wrangler 4.0L ECM replacement

well you wont need to change the ecm if its not burt yet.
try correcting the short first before you do burn out the comp.
if this is the model with the in line coil pack you will need to make sure the heater hoses are not drooping down on the pack.use wire straps to raise the heater hoses just off the may want to remove the pack and put some dielectric lube on the spark plug boots so it goes down all the way on the spark plug.when the plug miss fires and causes the engine to stumble the comp raises the idle to compesate.then the plug fires again and the idle surges.
hope this helps

Jun 22, 2009 | 2000 Jeep Wrangler

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