my car idles at 2K and its probably wasting alot of gas i put in about 20 dollars worth of gas every 4 to 6 days, how do i fix this problem?

 

Any codes? Maybe your TPS sensor is dead.

 

thats right, i need an ODB tool. the shops charge like 60 bux to use it can i find it anywhere else?

PS. what if there is no codes. what could be wrong then?

 

Read the stickies. Clean TB, IACV, yadda yadda.

 

http://forums.maxima.org/showthread.php?t=463481
hope that helps

 

You can get your codes scanned for free at Autozone.

 

yeah thats not good... my car idles at 750-950

 

I got 2 codes P130 and P150 those are the 2 oxygen sensors in front right? could those make my car idle high?

 

i know i spend so much money on gas im an idiot.

 

Bad O2 Sensors would kill your gas mileage, change them ASAP.

 

where can i get some good 02 sensors for cheap, and how much would a shop charge for install I dont have like any tools to work on my car at my house.

 

you can get them at 50-70 bucks from autozone.

You can install them easily at home. If you don't have tools, just rent the tools from autozone. When you return the tools, they'll give you a full refund on your tool. It's basically free renting unless you end up not returning the tools.


For your idle problem, check/replace/adjust these: Throttle position sensor, MAF sensor, IACV, Throttle body adjustment screw, Air bubbles in the cooling system, and/or Intake assembly (manifold, throttle boddy, pipings) need to be flush cleaned.

 

No.

You need to look at the throttle body.
Check the cold idle plunger, it might be shot or out of adjustment.
Check the throttle cables, make sure there is enough play and nothing is binding.
Clean the throttle body and check the return spring. Make sure it opens and closes smoothly and the spring is tight enough.
If you still have a high idle, you'll need to set the idle speed. The idle speed is set by first verifying the throttle body default setting. That is done with the TPS unplugged, engine up to operating temp. Once that speed is corrected, TPS plugged back in, you'll need to verify the idle speed with with the IACV set screw.

A Haynes shop manual would be a wise purchase.