Question about 1994 Nissan Maxima

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Emission control malfunction

I have a 1994 nissan maxima. While driving today, suddenly "Check" indication was lit up and upon chcking the manual, I understood that the error was related to some emission control problem. The car is vibrating when we come to a stop sign or so, but do not notice this vibration above 30 mph.

Can anyone please advise me if I could do anything about it? I went to a car mechanic he said it would cost $85 to just check what the problem and then would let me know.

Thank you

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  • shravana123 May 30, 2009

    Thank you SIr! I think it might work. Will let you know..

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  • Master
  • 1,486 Answers

I think you have a spark plug breaking down.Change then and the leads first before you go fo a diagnostic check

Posted on May 30, 2009

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1 Answer

Nissan Titan code p1446


This is what it means:

Evaporative emission (EVAP) canister purge system - vent control valve malfunction

You can see it at this website and basically what the causes could be.

http://www.troublecodes.net/nissan/350z-armada-maxima-murano-pathfinder-quest-titan-versa-2002-2008

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Error code 340 & 457


  • P0340 - Camshaft position sensor circuit malfunction.
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    There is a bulletin #0398 posted on 05/12/2003 for P0457 - Malfunction indicator lamp (mil) illumination with diagnostic trouble codes p0442, p0455, p0456, p0457, p1442 or check fuel cap lamp illuminated with diagnostic trouble code p0457.

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Hi i have 1997 nissan maxima, emmision test got fail because of P0443 code, it runs well, could you help me tofind solution


P0443 - Evaporation Emission Control System Purge Control Valve Circuit

Hi. This code is referring to a malfunctioning Valve circuit, or defective purge solenoid.

The Evaporative Emissions System (EVAP) allows fumes from the gas tank to enter the engine to be burned, rather than vented into the atmosphere as an emission(emission control device). The purge valve solenoid is supplied voltage by the battery, and regulated by a switch. The ECM controls the valve by operating the ground circuit, opening the purge valve at specific times, thus, allowing these gasses to enter the engine. The ECM monitors the ground circuit as well, watching for faults. When the purge solenoid isn't activated, the ECM should see a high voltage on the ground circuit. When the solenoid is activated, the ECM should see the ground voltage registered as a low current, close to zero. If the ECM doesn't see these expected voltages, or senses an open circuit, this code is issued.

SYMPTOMS:

Symptoms could be just a malfunction indicator lamp (MIL) illumination. There may be no driving issues at all. But, it's also possible to have a lean condition or a rough running engine if the purge valve is stuck open. Usually, the symptoms are accompanied by other EVAP codes. Another symptom may be excessive pressure in the gas tank in the form of a over pressured sound when the cap is removed, indicating a purge valve that isn't working at all or stuck closed.


CAUSES:

1. Bad Solenoid(mechanical failure, or shorted circuit)
2. Shorted control circuit, or bad harness connection
3. Water Damaged connection
4. Bad ECM/PCM


SOLUTIONS:

1. It is possible to use a diagnostics scan CPU to command the purge valve to operate, manually. Listen or feel for a clicking coming from the purge solenoid. It should click once, or on some models it may click repeatedly.

2. If it doesn't click, unplug the connector, and examine the solenoid and connector for damage(water). Check for battery voltage on the feed wire with the key on. If you have battery voltage, then ground the control side manually using a jumper wire and see if the valve clicks. If it does, then you know the solenoid is working properly but there is a problem with the control circuit. If it doesn't click when you manually ground it, replace the purge solenoid. If it dose click, this will confirm that the solenoid is functional, and the ECM/PCM will be the culprit(Damaged control circuit).

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1 Answer

Need to know what the code p o 443 means


most likely it is the evaporative emission control system, purge control circuit malfunction. check hoses and fuses and wiring.

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Does a 1994 Nissan Maxima need Super or Regular Unleaded Fuel?


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Jul 07, 2009 | 2002 Nissan Maxima

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