Crazy idle
#1
Crazy idle
Yes I searched but didnt find all my answers
Last time I drove my car was November 2017( I did turn the car on every other day )... now I started to drive it again and the idle is around 950.. then randomly drops to 800 back to 950 .. around those numbers... I can hear little pops in the exhaust and it just happneds ay random sometimes it last for 10 seconds sometimes for 2 seconds
My question is
Is this been caused because I never did the idle relearn after installing the nwp throttle body? My check engine light doesnt come on theres no codes I already scanned it
If I get car tuned the idle will be fixed right?
Last time I drove my car was November 2017( I did turn the car on every other day )... now I started to drive it again and the idle is around 950.. then randomly drops to 800 back to 950 .. around those numbers... I can hear little pops in the exhaust and it just happneds ay random sometimes it last for 10 seconds sometimes for 2 seconds
My question is
Is this been caused because I never did the idle relearn after installing the nwp throttle body? My check engine light doesnt come on theres no codes I already scanned it
If I get car tuned the idle will be fixed right?
#2
#3
Join Date: May 2017
Location: Washington State
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#5
When I SeaFoamed my car; I put a 1/3 in the tank, 1/3 in the crankcase, and 1/3 into the intake via the brake booster hose coming from the battery compartment slowly.
You could get a code or have some misfire counters if you can read OBD2. I'd try the pedal reset first though. It could take several tries to get it working though.
You could get a code or have some misfire counters if you can read OBD2. I'd try the pedal reset first though. It could take several tries to get it working though.
#6
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I don't know exactly which method Nissan employs to determine misfire but its probably a mix of rpm calc, O2 calc, and coil pack voltage sensing and then it takes an educated guess and uses the crank sensor to determine which cylinder is misfiring and if it can't pinpoint one it gives the generic.multiple misfire.
What I think is happening on your vehicle is you have an INTERMITTENT misfire meaning it fires on some cycles but not on others, you can verify by listening to the exhaust because it will.make an irrythmic "thud.... thud thud... thud... thud.... thud thud thud" sort of sound.
Intermittent misfire is usually just a bad spark plug, coil (especially if it only does this with a hot engine) or injector, if it's got a very specific rythym then maybe the ECU just hasn't recognized it as an error yet.
What I think is happening on your vehicle is you have an INTERMITTENT misfire meaning it fires on some cycles but not on others, you can verify by listening to the exhaust because it will.make an irrythmic "thud.... thud thud... thud... thud.... thud thud thud" sort of sound.
Intermittent misfire is usually just a bad spark plug, coil (especially if it only does this with a hot engine) or injector, if it's got a very specific rythym then maybe the ECU just hasn't recognized it as an error yet.
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