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How to fix obd2 trouble codes p1441 and p1661 both say null

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What is p1661 mil control circut for a 95 chevy camaro

Posted on Apr 03, 2012

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 96 Buick Century won't pass imisions code P1441

code is evap system flow during non-purge
check the hoses for holes or broken disconnected hoses also check the fuel cap emissions diagram under the hood will give u the location of the evep purge solenoid if all checks ok then replace the soienoid and clear the codes
rank & vote my solution

Posted on Dec 13, 2008

reisdos
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SOURCE: OBD2 TROUBLE CODE P1121 HOW TO FIX OR WHERE TO

P1121 means that the TP (throttle position sensor) does not match what the MAF (mass air flow sensor) reads

the two leading causes for this are the TP or the PCM (powertrain control module)

you will need a professional scan tool to diagnose in detail

Posted on Mar 27, 2010

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SOURCE: 1996 ford 7.3 diesel trouble code p1661

can I clear transmission code without a code reader/

Posted on Sep 29, 2010

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SOURCE: My car has a code p1661 that makes it fail

CODE P1661 MIL CONTROL CIRCUIT MALFUNCTION CONDITIONS. POSSIBLES CAUSES MIL CONTROL CIRCUIT IS OPEN SHORTED TO GROUND OR TO POWER B+. MIL POWER CIRCUIT IS OPEN CHECK THE GAUGES FUSES .MIL BULB IS OPEN OR MISSING. PCM HAS FAILED.

Posted on May 10, 2011

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What does the code no DTC detected mean on a 2001 Nissan pathfinder


DTC P1441 means there were no scan results. There may be some troubles that can't be detected but the fact that your Nissan is running fine seems at odds with that long list of issues cobbled together by the repair shop.

Feb 18, 2015 | 2001 Nissan Pathfinder

1 Answer

What does no dtc code on a 2001 Nissan pathfinder mean


DTC = Diagnostic Trouble Code.
No DTC means no trouble.

Feb 18, 2015 | 2001 Nissan Pathfinder

1 Answer

Definition of po1441 trouble code


P1441 Evaporative emission control system very small leak, positive pressure.
The problem may be that the purge control valve which is part of the charcoal canister has a slight leak.
If the control valve doesn't completely close, there will be flow during non-purge.
Vacuum drawn through the small hose to the charcoal canister is what opens the purge control valve.
Make sure that there is no vacuum to the smallest hose connected to the canister at idle.
Make sure the little hose is not kinked or pinched in some way that would hold vacuum to the purge control valve.
The canister is purged above 35 MPH, never at idle.

P0446 EVAP canister vent valve

The P1441 and P0446 are related.
When you fix the P1441 the P0446 may go away also or it may need a new vent valve.

Jul 22, 2014 | Cars & Trucks

1 Answer

Were do I look to fix the code p1661 code lamp


There is a problem with the EGR circuit. It could be that the EGR is clogged. Or the electronics involved could be malfunctioning. Good luck!

May 11, 2011 | Chevrolet Caprice Cars & Trucks

2 Answers

My car has a code p1661 that makes it fail inspection what is that code and how to fix it


P1661 - MIL Control Circuit

It may be a fuse or loose wire....MIL stands for Malfunction indicator lamp

The shop who failed it should be able to fix any issue with it as well.

If this answer helped please vote for it!

May 10, 2011 | 1996 Chevrolet Caprice

2 Answers

Wont start and trouble code is p1441


P1441 Evaporative Emission System Flow During Non-Purge.


The vacuum system/Evaporative recovery system. Evap. (vapor cannister) code MAY be as a result of excessive fuel flow into the cylinders overloading the cannister's capacity. Possible cause is a failing Oxygen sensor giving a "Lean" indication to the engine computer, causing more fuel than is needed to be injected into the cylinders and captured by the vapor system. Trying to keep track of the changing readings may be taxing the computer's memory. Have the oxygen sensor checked. If it is functioning correctly, check for vacuum leaks, cracked or broken vacuum hoses.


Take you car to a professional as this is going to take some skill and knowledge to repair. Dont keep buying parts to fix the problem as this will get very expensive.


Here's a link to codes and what they mean http://autorepair.about.com/cs/troubleshooting/l/bl_obd_main.htm

Mar 13, 2011 | 1997 Pontiac Sunfire

1 Answer

Replaced the O2 sensor unit and the ECM(programs installed) but I'm still getting CHECK ENGINE LIGHT(P0001). what is the possible problem and how can this be resolved?


P0001 Fuel Volume Regulator Control Circuit/Open The above code is about an oxygen sensor code for the heater circuit located in bank 1 sensor 1. (bank 1 is at exhaust manifold by the #1 cylinder head, bank 2 is on the 2nd cylinder head. On some engines, both exhaust manifolds could have one oxygen sensor each side and the 2nd cylinder head will have the sensor 2). On the oxygen sensor itself, it has 4 wires which are color coded. Two of wires are for the heater circuit that heats the oxygen sensor to make it reach optimum operation quickly. Those 2 oxygen sensor heater wires could be shorted between the sensor and the ecm (engine computer) or other engine components.
oxygen%20sensor%20heater%20copy.jpgThe common fix for this code is to check the integrity of the heater wires. Check the wires for insulation and routing which could be loose or touching a hot exhaust that can short the wires. If the engine has too many miles, it is possible that the heater circuit inside is worn and shorted which needs a replacement of the oxygen sensor. If you have a DVOM, you can also test the continuity of the heater wires from the oxygen sensor to your computer pins.
More detailed fixes will be provided as soon as you give the symptoms of the obd2 trouble code. ATS will provide the wiring diagram so you can trace the color coded wires. Use an obd2 code reader or scanner so you can access this obd2 trouble code. When you have this obd2 code list, use it as a reference and give the code to ATS. We will then send you all the possible fixes for the obd2 trouble code. ATS has lots of fixes for obd2 gm codes, obd2 ford codes, dodge obd2 codes and all obd2 import codes such as Toyota obd2 codes, Honda obd2 codes, Nissan obd2 codes, etc. All fixes for this obd2 codes are guaranteed or your money back.
Important TIPS about Oxygen sensor:
The oxygen sensor content of the exhaust gas indicates when the engine mixture is operating lean or rich. When the oxygen sensor detects that the engine is operating rich, the signal voltage is high, and any decreases in the signal voltage means the engine running is lean. The engine computer supplies a reference voltage like one volt or five volts, and then shows the change in the sensor return voltage as the sensor's resistance is changing. If you have connected everything properly, when you crank the engine, you should see the check engine light coming out.
Unheated oxygen sensors rely on the heat of the exhaust gases to reach the working temperature, therefore they might start to cool down while the engine is idling and revert back to a default air-fuel ratio setting. This type of sensor usually has a single wire connector, though others have two. Unlike the fuel pump relay, the 02 sensor heater circuits have a separate fuse for each sensor and grounds, which are controlled by the engine computer.
To read a voltage across the heater, one side must be connected to (+) and one side must be connected to (-), which is accomplished by the computer or a transistor. It can read 12V between each wire and a separate ground if it was connected to positive and the other was not yet connected to ground connection (for details, please contact ATS).after you replace oxygen sensor you have to drive for so many miles before it resets its sef

Dec 13, 2010 | 2001 Volkswagen Beetle

1 Answer

Imisions test comes back with, code P1441 ?


P1441 is a EVAP code, small leak I thinking.

P1441 Evaporative Emission (EVAP) System Flow During Non-Purge

Now for the fix: the ECM uses a pressure sensor to watch the system and see that there are no leaks. If it sees a leak via the pressure sensor, it sets this code. The ECM wants to see the pressure sensor voltage drop down, indicating that there is vacuum on the system, and it wants it to be able to hold this vacuum for at least 30 seconds. If this does not happen, it will set a code. As a note, the vent solenoid is the most common failure on these systems.

Hope helps (remember to rate and comment this).

Sep 22, 2010 | 1996 Buick Riviera

1 Answer

1996 ford 7.3 diesel trouble code p1661


can I clear transmission code without a code reader/

Nov 10, 2008 | 1996 Ford F350 Crew Cab

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