Idle hunting The car idle hunts after coming off of the freeway into city (stop and go) driving. It has died a couple of times and it has hesitated a couple of times on the freeway. I can feel it mis-firing at times when just crusing at around 60 mph. I JUST bought it and any help would be great, thanks!

You check fuel pressure?

OBD Codes in ANY Module?

All Emission Monitors Run clear?

Look at a trouble chart for the IAC problem

I do not know what having the computer remanned means

If it was replaced or not, it may need an update flashed

Did you Google the problem & check nissan forums?

Slip into service bay at a dealer, from the outside & ask a
tech,I do that all the time,no one will stop you,your going to
parts dept (right & got lost)

There isn't just one cause for this symptom. Is the engine light on while it is running? If so, please have the codes read and forward them. My first guess for "Hunting" is timing. The timing belt may be loose or the crankshaft sprocket could be loose. There could also be an electrical issue with the fuel system, ignition system or a component related to the ECM. Please write back with more diagnostic information and I will do my best to help.

clean the MAF sensor with carb cleaner if you have one in the big air intake hose. Small heated wires inside. Causes lean mixture

sound like a insterment control module has got damp or damaged ?have car checked at autospark engineer as soon as you can ... happy hunting.

Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue 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.

check for a vaccuum leak this is where i would start if it rolled into my shop. possibly a PCV valve sticking or a hole in the hose, this hose should run from the valve cover, or crank case and then to the intake, or carb.

There is a small vacuum pipe from the EGR solenoid that was disconnected, by reconnecting this pipe the problems (that I have had ever since I had a new head some 30,000 miles ago from a VW main dealer) have gone away.

check for a vaccum hose disconnected,check air filter casing secure

Sounds like your IAC (idle air control) motor needs to be replaced. If you are driving on the Interstate/freeway/highway for a bit and then get off, the car dies when your coming to a stop right?

Have the fuel pressure checked. Could be an erratic pump or pressure regulator.

Poppascott