i have a 2k 5speed w/ cone filter, y ipe and bpipe and my car wants to stall often. it happens randomly. at first, i thought my tb was dirty, so i would you some cleaner and watch my exhaust releases a black cloud from my system. but i tried that recently, and there was barely a hint of black that came out. i also cleaned my filter, thinking it was very dirty, but that didnt seem to be the problem too. i would just drive, and pop it in neutral, and the needle would dip to 500, or even 2-300 rpm. can someone help me with this?

p.s. it seems that when i reset my SES light by disconnecting the battery, the car idles nicely all the time, but after driving a lil bit, the needle drops on occasion when its put into neutral.....

can someone help me figure out what it is......

 

are you running the idle air vol releard after resetting the pcm?

 

this happens to me too. the exact same scenerio as you, i'm thinking it may be my MAF. but i just replaced that 4-5 months ago (2k1 MAF)...

 

whats that? i un think so........ i just drive......?

 

http://forums.maxima.org/showthread....03#post2480803

 

wheres the connector at? the tps? or that brown connector?

 

what connector?

 

7. Disconnect throttle position sensor harness connector (brown),
then reconnect it within 5 seconds.

 

its on the throttle body, should be the one on top (out of the two), its brown.

 

that happened to my car when i would coast in neutral or just rev it. it would drop like it was ready to shut off and then just go back up. the problem was my TB. you say you sprayed TB cleaner, but i believe you need to do more than just that. you need to get down n dirty. spray tb cleaner onto a piece of cloth, old tshirt, whatever. then you need to physically clean the butterfly. the reason it feels like it's going to shut off is specifically because of dirt buildup at the edge of the butterfly valve. it is usually about 15 degrees off a straight vertical line. that little air that passes through is what creates the idle. when the dirt builds up, that gap gets smaller, so the idle drops real low. but then the ECU kicks in and brings it back up.
you can clean the butterfly valve, but then....ok i see you have a 2k so i'm GUESSING you have a cable-controlled valve, so it shouldn't mess up the idle. if it does mess it up, then you'll have a high idle and the link above for the idle learning should assist you.

cliffnotes: spray not good enough, need to rub grime off butterfly valve.

 

i use a wire brush

 

ok, wire brush. point being, you can't just spray and hope it clears the grime. it has to be physicially removed.

 

lol, yea...

unless you got a good spray can with a straw, to blast it away.

i usually spray it on, let it soeak for about 5 minutes, and then spray again and brush