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Cam sensor advances my timing at an idle on the nissan altima 2.5

Engine doesn,t run smooth in park,go to reverse and it idles rough and go to drive and it gets smooth again and idle rpm drops about 200 rpm

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1 Answer

The you need diagnostic time with a scanner to start
on the problem

Cam Sensors report cam movement to the pcm/ecu

Most VVT issues are from lack of oil changes & sludge
build up in cams & actuators

Posted on Mar 13, 2013

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6 Suggested Answers

Anonymous

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 1 Answer

SOURCE: Rough idle

I took mine in to change the plugs and they said there are four O2 sensors in the fuel mixture system and two were bad. I didn't replace them since they were a little pricey ($500 to replace both) and I have 103,000 on the car. Has very similar roughness and occasional oscillations, but no stalling. Hope this helps.

Posted on Aug 25, 2008

Abdi Jama

  • 119 Answers

SOURCE: fuel system

Check the fuel system, chenge fuel filter. clean the fuel tank.

Posted on Oct 19, 2008

Anonymous

  • 12 Answers

SOURCE: rough idle / engine surges until power is applied

Sounds like a possible vaccume hose leak?

Posted on Feb 07, 2009

emissionwiz

Marvin

  • 85223 Answers

SOURCE: ROugh idle

there are 2 things that usually cause this, one is a dirty intake idle control valve and the other is hard engine mounts, I would say that both most likely apply to your car. try cleaning the intake with the following procedure from Ford.
Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Feb 18, 2009

66 chrgr

mike loshbough

  • 1011 Answers

SOURCE: I have a 83' lincoln Mark 6 with a 302 V8 and a 2

put a throttle position sensor on the throttle boby this should fix the problem!

Posted on Feb 22, 2009

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1 Answer

My 1997 mitsubishi galant idles at 1000rpm. soon as on gear(like drive/reverse) rpm drops to 500 rpm and runs rough. if I run the A/C the engine runs rough and seems like it has no power to move on drive...


Have you run an error check on vehicle. You can have this done for free at most auto parts stores. Almost sounds like the idle sensor is having issues, but can not be sure at this point. Make sure the choke isn't sticking or hanging up if carbureted.

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Is the check engine light on ?
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The battery has nothing to do with the idle speed

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You might want to check the engine for a vacume leak.Once the rpm's drop it may have a big enough vacume leak to not keep it running under a load.

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