high idle revs

Anonymous · July 3, 2005, 23:35

dont know if this is suppost to happen. never noticed it on any previous cars that i have owned as much as this, but when i start up the engine from cold, it revs at anywhere between 1500 and 2000 revs. i know this is the choke but this happens even on warm days. it normally drops to about 750 revs when engine temp rises. is it that i am just noticing it more becuse the engine noise is louder than my other cars?
Also i have noticed that when the engine is warmed up (normally hovers around the middle of the gauge) and i pull up to a junction with foot off the accelerator, the idle speed can be erratic. it isnt majoy erraticness (not sure if that is a word) can go up to just over 1000 revs and down to about 600 revs (makes the car vibrate a bit when it gets low).
Does anyone else experience this?

Any help would be much appreciated

edward.carter · July 3, 2005, 23:59

yep mines exactly the same, mines well overdue a service though, booked in for sat let you know if makes any difference, should do hopefully!

Anonymous · July 4, 2005, 00:19

mine had major 1500 miles ago according to service book. last owner either didnt notice it or didnt bother to say anything

edward.carter · July 4, 2005, 00:22

mine hasnt had a service for well over a year last owner musta neglected it i think s:cry: :cry: s:cry: its due its 4th service which is apparently the first time they change the plugs, hopefully should improve matters

Slacey · July 4, 2005, 07:13

First port of call is to clean the MAF, personally I don't think Toyota ever clean this as part of a service and it's the most likely cause of your problem. Search the Maintenance forum for more info.

Anonymous · July 4, 2005, 07:37

unfortunetly, last owner skimped on last service and didnt get it done at toyota s:cry: :cry: s:cry: will search and have al ook when i finish work tonight.

many thanks

heathstimpson · July 4, 2005, 08:35

Mine sometimes does the same even when I've cleaned the MAF s:? :? s:?

kanujunkie · July 4, 2005, 08:46

Quote from: "heathstimpson"Mine sometimes does the same even when I've cleaned the MAF s:? :? s:?

yep, likewise, but it only happens for a few seconds when its hot outside

Tem · July 4, 2005, 11:18

You think that's high? My prev 4A-GE used to idle above 3000rpm when cold s:lol: :lol: s:lol:

Anonymous · July 4, 2005, 11:29

Mine does this also, one of the first things I noticed about the car.

My parents recently got a brand new Celica 140 and it does exactly the same thing.
Just an engine characteristic I presume.
s8)

s8)

Anonymous · July 4, 2005, 13:39

My 2 is at MrT today to get the usual niggles sorted mostly under warranty. I too have experienced the same eratic idling and is one of the things I have asked them to look at. (Last service was only 2.5k ago as has <10k on the odo). I also cleaned MAF and used a fuel additive - did run a bit smoother, but idle still seems to have a bit of a mind of its own. From the threads above - sounds like a common charicteristic/ the norm, but I'll let you know the verdict from Mr T.

roger · July 4, 2005, 14:04

Same for me as well.

TBH I have noticed the "warm up" idle increased by between 300 - 500rpm after the Unichip was fitted. I don't think it weas anything to do with the tuning because that is supposed to be "full throttle" only.

Had its service about 6 weeks ago, must admit I didn't mention it, and came out the same.

heathstimpson · July 4, 2005, 15:20

Quote from: "roger"Same for me as well.

TBH I have noticed the "warm up" idle increased by between 300 - 500rpm after the Unichip was fitted. I don't think it weas anything to do with the tuning because that is supposed to be "full throttle" only.

Had its service about 6 weeks ago, must admit I didn't mention it, and came out the same.

I seemed to notcie the problem after fitting my Unichip as well s:? :? s:?

Anonymous · July 4, 2005, 16:34

thanks everyone.

glad to know it obviously isnt a major issue if quite a few others are having it. Will clean the MAF anyway. Last owner didnt know much (if anything) about maintenance. Think it was bought mainly for looks and not for all the other outstanding attributes that it has as well.

Thanks again s:D

s:D s:D

s:D

Anonymous · July 4, 2005, 17:11

As suspected, Mr T has just concurred ... all is in within normal range. It's just character then... Plus if revs drop a little low and the car shakes a bit - Just an excuse to blip the throttle! s:)

s:)

edward.carter · July 4, 2005, 18:16

just cleaned my MAF and reset my ecu so see how go... s:)

s:)

Anonymous · July 6, 2005, 18:21

just cleaned my MAF sensor (was very dirty) and reset ECU. Immediate noticable improvement. Would recommend this to everyone. 5mins for the MAF sensor max.

Thanks for everybody's help s:bounce: :bounce: s:bounce: s:bounce: :bounce: s:bounce:

edward.carter · July 7, 2005, 08:28

same here dead easy to do and great improvement, revs easier in the top half seems much smoother and even quieter! s:D

s:D