Question about 2003 Nissan Altima

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03 3.5 altima idle rough and would die

Learned to pull map sensor and it will stay on but it will not rev higher than 2500rpms like it has a rev limiter anybody got answers help

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Is that a map sensor, or a MAF sensor? Map sensor has three connection and measure engine vacuum. It is easy to check that. You apply vacuum to it by sucking the hose, and see if voltage changes on one of the pin. It is all done while connected, with the key ignition on the on position.

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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My 96 nissan altima dies at idle


Could be a dirty throttle body, vac leak, or a defective idle air control valve. The computer adjusts idle speed by controlling the amount of air entering the throttle body via the control valve.
Is the check engine light on ?

Dec 24, 2012 | 1996 Nissan Altima

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1996 dodge caravan 2.4 code p1294


on dodge motors
fitted a lot of parts and still no better

the fault code clears and comes back as a intermittent problem

could be electrical voltage drop off or heat related failure

i wonder if your 02 sensor ,the catalytic converter
or other related sensors
are causing the fault to come back
if needed .....fit a new air filter...

how the test is determined

P1294-TARGET IDLE NOT REACHED 3.3L/3.8L
When Monitored and Set Condition:
P1294-TARGET IDLE NOT REACHED 3.3L/3.8L
When Monitored: With the engine idling and the transmission in drive, if automatic.
There must not be a MAP sensor trouble code or a Throttle Position Sensor trouble code.
Set Condition: The engine idle is not within 200 rpm above or 100 rpm below the target
idle for 40 seconds. One trip fault.

POSSIBLE CAUSES
INTERMITTENT CONDITION
IAC MOTOR PASSAGES
VACUUM LEAKS
AIR INDUCTION SYSTEM
THROTTLE BODY AND THROTTLE LINKAGE
TEST ACTION APPLICABILITY
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Mar 01, 2017 | Cars & Trucks

1 Answer

I have a 1988 GMC 1500 with a 305 the problem is that it wont idle I found that if I pull the vacum line off the MAP sensor it is fine for 30 seconds then dies I got a new map sensor and nothing chan


Change the PCP valve and run the heater. This should take care of it. You only have to run the heater one time as this is controlled by the vacuum system. This will cause your motor to run proper.

Apr 09, 2012 | Cars & Trucks

1 Answer

Idles fine cuts out at 2500rpms will not get past 2500rpms


The mass air flow sensor, on passenger side of throttle body, if that is disconnected or faulty, the engine will cut out at 2500rpm. And act like its bouncing off the rev limiter.

Oct 23, 2010 | 1997 Nissan Pickup

1 Answer

Rough idle, can't rev, unplug map sensor it runs fine, unless you put it in gear, then it dies out.


GO 2 AUTO ZONE AND HAVE THEM SCAN UR SYSTEM THIS SERVICE IS FREE, SOUNDS LIKE U HAVE BAD MAP SENSOR

Oct 04, 2009 | 1984 Pontiac Sunbird Le

1 Answer

1983 honda acc cold start wont stay running when cold idles rough


try checkin your idle air control. most of the time it is a vacuumn line going into intake.pull it off and if the car revs up dont worry, it wont hurt it. if it does simply put it back on, if it dies you have a bad vacumn.

Jun 20, 2009 | 1983 Honda Accord

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