Question about 2005 Nissan Altima
I have a 2005 Altima 2.5S.(42k miles) I've had the car for 2 years and not had any problems. However for the last 2 days, its not starting properly on the first try. In some cases I have to let the car sit for 40 minutes before getting it to start up. The battery is brand new. The engine cranks over without any hesitation.
I've tried starting holding the peddle down 2/3 down (as suggested on some forums) - no luck
I've removed the battery terminal (in hopes it resets something) - no luck.
I connected an ODB II scanner and I get "Camshaft Sensor - Malfunction on Circuit 1" (Cen-Tech error code P0340)
I see there is a recall to reprogram the ECM - would this fix the problem. Or should I change the sensor?
I think replacing the sensor is in order. i know all car makes have "recalibration updates" for the ecm and should be done, but have rarely fixed vehicles on just that alone. and your symptoms suggest the sensor could be intermittently bad
Posted on Nov 23, 2008
Camshaft positioning sensor is not hard to get to all all. It's right next to the upper thermostat housing and will take 5mins. The crankshaft positioning sensor is the bear to get too.
Posted on Nov 21, 2018
My 05 Nissan doing same thing we have replaced cam sensor, crank sensor, fuel pump...still having starting problems I am at a lose and ready to give up
Posted on Mar 15, 2015
My 06 did the same thing and everybody said it was the cam sensor.....had it replaced and didn't fix anything. mine always starts on the second try after it is hot. when it's cold it starts every time with no issues. Our Nissan dealership is full of mechanic morons who shouldn't be working on bicycles let alone cars. also took it in when it started running bad and the temp gauge would drop at the same time it ran bad and they couldn't figure it out. fixed it myself by replacing the temp sensor unit ($20). apparently I'm a Nissan mechanic and didn't know it.
Posted on May 21, 2013
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Posted on Jan 02, 2017
SOURCE: nissan altima starting problem
This is definitely a camshaft sensor malfunction, you can get away with not replacing it for awhile but eventually when it goes the car will stop starting, the sensor will need to be replaced hence why your car isn't starting but intermittently. Its easy to do and will take about 30 minutes to do, its just a pain to get to.
Posted on Dec 07, 2008
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