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LeftOfSanity
People Suck.
join:2005-11-06
Dover, DE

LeftOfSanity to Doctor Olds

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to Doctor Olds

Re: 2005 Nissan Altima 2.5L No Start Condition

said by Doctor Olds:

No power could be clogged exhaust/converter and or clogged fuel filter/bad fuel pump. You still have some diagnostics ahead of you unless you drive it to a Dealer or a shop.

Managed to drive it Autozone, they said I should take it to the dealer to get scanned.

They pulled stored codes:
P1031 - A/F Sensor 1 heater control circuit low

P0725 - Engine Speed signal circuit

But they might have been from me unplugging sensors.

Someone mentioned it sounds like it is running in 'Limp Mode' and I should try to reset/clear the ecu.

Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium Member
join:2001-04-19
1970 442 W30

Doctor Olds

Premium Member

said by LeftOfSanity:

They pulled stored codes:
P1031 - A/F Sensor 1 heater control circuit low

P0725 - Engine Speed signal circuit

Someone mentioned it sounds like it is running in 'Limp Mode' and I should try to reset/clear the ecu.

2005-2006 Nissan Altima Factory Service Bulletin OBDII Code P1031
»ww2.justanswer.com/uploa ··· 0691.pdf

Engine Speed Sensor P0725
»x.nissanhelp.com/forums/ ··· elp.html

To reset the codes :

2002-2006 Nissan Altima Forums > F.A.Q 2002-2006
Reload this Page How-to: Read and Reset Check Engine/Service Engine Soon Light
»www.nissanclub.com/forum ··· ght.html
speedshop
join:2012-11-15
Toronto, ON

speedshop to LeftOfSanity

Member

to LeftOfSanity
Sanity, did you find the problem with your 'crank,no start' with your Altima? My 2002 2.5 Altima does the same thing, BUT I have to disconnect the 'Camshaft sensor', as opposed to the 'Crankshaft sensor', in order for it to start up. I have acceleration but not near the full torque power I'd expect. New crank & cam sensors but still same problem. 3 expert mechanics are baffled. not spending another dime for new parts in order to 'hit & miss' the issue.