poor idle

Post by **elgarvo616** » Thu Dec 15, 2005 6:21 am

lately when i come coasting to a stop, my idle drops down to like 500rpm. when i stop, the idle starts to surge but then it stops after a few seconds. whats goin on here?

Post by **1991S13** » Thu Dec 15, 2005 10:28 am

Normal idle for our KA's is around 600 +/-. By surge do you mean it jumps up then falls back down to normal? Mine does that too, and I have heard other people talk about it so I think it's normal. Sometimes if mine sticks real high (around 1500) I will turn the AC on, then turn it off and the idle drops back down.

Post by **S13 240SX** » Thu Dec 15, 2005 2:02 pm

does it also act like at time it wants to stall out? then if maybe its the idle air control. I had a problem with that once.

Post by **Nissan_240sx** » Fri Dec 16, 2005 2:54 am

Proper idle rpm ranges is 700+/-,1000+/- AC

I had that problem when I first got my 240. I cleaned my throttle body, adjusted the IAA valve, checked TPS, cleaned the AIV system, cleaned the MAFS, and replaced the fuel filter.Problem solved.

Links:AIV cleaning - http://www.240sx.org/faq/artic...v.htm

IAA valve adjustment -http://www.240sx.org/faq/artic...t.htm

TPS adjustment - http://www.240sx.org/faq/artic...t.htm

More idle help-http://www.240sx.org/faq/articles/idleirreg.htm

good luck

Post by **elgarvo616** » Fri Dec 16, 2005 3:28 am

it doesnt seem like its going to stall out. ill have to check all those things. thanks for the help

Post by **DjPantsSpecR** » Fri Dec 16, 2005 8:44 am

mine is an automatic so the car will literally start to buck as the idle slowly drops and then jumps between 400 and 600.

plugging the AICV did nothing to it, and if tried almost everything but swapping MAFS and cleaning the throttle body, but i think those are great places to start.

good post Nissan_240sx, largest wealth of information and you barely had to write anything, truely useful.

Post by **Nissan_240sx** » Fri Dec 16, 2005 9:18 pm

Thanks

Post by **Chezedik** » Fri Dec 16, 2005 9:31 pm

DJ, I never knew you had this dark secret. A slushbox?

Post by **DjPantsSpecR** » Sun Dec 18, 2005 10:02 am

lol, best dark secret of all time

i only have one slushbox, thats on my hatch. i rebuilt a motor and then used 240/240 cams for sweet midrange and mileage

the stripped coupe is definately not an auto, i recently blew the clutch up so i'm dong a bunch of stuff over my winterbreak.

but i thank you for your concern chez, and i do like your tails

poor idle

poor idle

Re: (DjPantsSpecR)

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