Question about 2004 Nissan Quest
Pcv hose on upper rear of intake manifold rotted through and causing a vacume leak. spray carb cleaner at mid rear of manifold and idle will drop and stall. pretty hard to replace but thats nasty nissan.
Posted on May 05, 2012
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Posted on Jan 02, 2017
Have the car re-learn the larger amount
of air volume that the modification creates, here is the procedure for doing this. It's
similar to the ECU clearing procedure:
1) Drive the car to "warm up" temperature. Make sure your idle is close to 700 rpm.
2) Ensure any battery draining devices are off. Ie. headlights, interior dome lights, HVAC,
3) Turn the car ignition key to "OFF"
4) Wait ten seconds
5) Turn the key to "ON" (not start)
6) Wait three seconds.
7) Perform the following five times in five seconds or less. Fully press the gas pedal and
8) Wait seven seconds from last of the five releases.
9) Fully press the gas pedal and hold down. Within ten seconds the "Service Engine Soon"
light should begin to blink.
10) Wait another ten seconds (while still holding the gas pedal) and the "Service Engine
Soon" light should stop blinking.
11) As soon as it stops blinking, release the pedal, start the car and check the idle
(should still be around 700 rpm)
12) Let the car idle at 700 rpm or so for about 25 seconds, rev the engine a few times and
then let it return to idle.
13) Shut the car down.
You car has now relearned the new air volume, which should be different than it was
(stock). You may notice a bit of a rough idle for the next 20 miles. This is normal and
will go away. The reason you should make sure idle is around 700 rpm (full warm up) is
because the car measures the air curve in relation to idle, so you don't want to confuse
Posted on Feb 25, 2010
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