Low idle

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rxm6
Posts: 350
Joined: Fri Mar 23, 2007 12:46 pm
Car: '93 240sx
Location: San Jose

Post

Right now my idle when warm and in drive is about 600~650 rpms and in neutral its about 700~750 rpms. Is this normal? It seems a little low to me.


rxm6
Posts: 350
Joined: Fri Mar 23, 2007 12:46 pm
Car: '93 240sx
Location: San Jose

Post

I fixed it. It was a little low. Now it idles around 900 in neutral and 750 in drive

NutriaforBreakfast
Posts: 1316
Joined: Wed Sep 26, 2007 1:41 pm
Car: Nissan Maxima 1995 VQDE engine

Post

Per Haynes manualNissan Maxima1993-2001

Engine idle speed

1993 & 1994 700 RPM

1995Manual Trans 550-650 RPMAutomatic Trans 600-700 RPM

1996-2001MT 525-625 RPMAT 600-700 RPM

rxm6
Posts: 350
Joined: Fri Mar 23, 2007 12:46 pm
Car: '93 240sx
Location: San Jose

Post

NutriaforBreakfast wrote:1996-2001MT 525-625 RPMAT 600-700 RPM
Really? I must have another problem then. I wouldn't say my idle is rough but the car vibrates a lot with such a low idle

Klepton
Posts: 54
Joined: Wed Jul 25, 2007 6:05 am
Car: 1999 Infiniti I30 (Limited Edition)

Post

My idle used to be at around 700 RPM (AT) and felt fine other than the fact that it was becoming more and more frequent that when I would start the car in the mornings, it would feel like it was going to die (weak/rough idle) for only 1 or 2 seconds and then go back to normal. After cleaning the Throttle Body, IAC Valve and MAF sensor, the idle is now around 1100 RPM. Although I didn't have the morning starting problems for a couple of weeks, it has started to occur again. Any suggestions?

NutriaforBreakfast
Posts: 1316
Joined: Wed Sep 26, 2007 1:41 pm
Car: Nissan Maxima 1995 VQDE engine

Post

I think the idle specs provided in Hayes are for a car at normal op temp

I dont know what the cold idle RPM is.

I have auto tran and in drive it idles around 750 RPMat normal op temp

When you put it in neutral it jumps all the way to 1500 RPMat normal op temp

No codes but I dont think it should be that high?

NutriaforBreakfast
Posts: 1316
Joined: Wed Sep 26, 2007 1:41 pm
Car: Nissan Maxima 1995 VQDE engine

Post

Cheapest fix is to look for a loose vacuum hose first anyway


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