Home / Toyota Supra Forums

Go Back   Toyota Supra Forums! Join the Supra forum! > Performance, Modification, and Maintenance Forums - for generation specific discussions > MKIII Supra

Reply
 
Thread Tools Display Modes
Old 10-25-2006, 02:14 AM   #1
Churchbuilder
Stock
 
Join Date: Oct 2006
Location: Ohio
Posts: 1
Churchbuilder is on a distinguished road
Default Uneven idle after cleaning engine

I power washed my engine the other day. Now, after it warms up the rpms at idle go up and down. from say 1000 rpm to 2000 rpm and back and forth. Anyone know what would cause this?
Churchbuilder is offline   Reply With Quote
Old 10-25-2006, 02:36 AM   #2
ravenmaster
12psi boost
 
ravenmaster's Avatar
 
Join Date: Aug 2006
Location: Being not duly informed, I refuse to answer with any degree of accuracy for fear of prevaricating
Posts: 265
ravenmaster is on a distinguished road
Default

IF ITS TURBO IT SHOULD BE 650rpM AND n/a IS 700 DOES IT GO AWAY AFTER AWHILE? AND DO YOU HAVE THE STOCK INTAKE? SOME OF YOUR WIRES MIGHT BE MESSED UP CHECK ALL VACUUM TUBES.
__________________
1988 Toyota Supra Turbo Targa
Tokico Illumina II's (TEMS) | Eibach Pro Springs | SpeedTech AntiSway Bars | Cusco Strut Tower Bars | Lexus AFM/550cc Injector Mod | SOGI short shift mod | Aluminum Driveshaft | Upgraded Fuel Pump | 12 PSI Boost | MHG | 11/30/08 Dyno 362RWHP 326ft/lb


Quote:
Originally Posted by supramacist View Post
Ya I'm the a$$hole. I think you're still mad raven cause I thought from your handle that you were a chick. I said I was sorry for that.
ravenmaster is offline   Reply With Quote
Old 10-25-2006, 02:36 AM   #3
nelly26
3" Exhaust
 
Join Date: Oct 2006
Location: UNITED KINGDOM
Posts: 58
nelly26 is on a distinguished road
Thumbs down

oops u could have moisture in some components my advise never use a pressure washer on engine you can get water in places it should not be if you need to clean engine do it by hand much safer and cheaper u might of knackered a sensor up
nelly26 is offline   Reply With Quote
Old 10-25-2006, 03:01 AM   #4
burton51m
Lexus & 550's
 
burton51m's Avatar
 
Join Date: Feb 2006
Location: Canton, OH
Posts: 536
burton51m is on a distinguished road
Default

i washed mine and the same thing happened to me.

you most likely got water in places where it shouldnt be (ex. wires,connections/connectors, )

let the car idle it out, n after a while it should be fine.



never powerwash an engine. get a hose without a sprayer on and let the water flow around the engine after u spray engine degreaser on it. try to stay away from electrical stuff.

edit- i dont know.. if it was going from 1000 to 2000 rpm's,thats a big jump.
mine was little
__________________

burton51m is offline   Reply With Quote
Old 10-25-2006, 01:32 PM   #5
tone loc
20psi boost
 
tone loc's Avatar
 
Join Date: Jun 2006
Location: Chicago
Posts: 706
tone loc is on a distinguished road
Default

yeah i was planning on power washing my engine tilll i found that water can ruin your computer componets and all the senstive sensors.
tone loc is offline   Reply With Quote
Old 10-27-2006, 02:13 AM   #6
ARZ
Intake
 
Join Date: Oct 2006
Location: Mesa AZ
Posts: 45
ARZ is on a distinguished road
Default

Usually it gets in the spark plug valley and qenerates a sporatic idle. I would drive it as long as possible to to get it to warm up and evaporate.

Or get a compressor and air gun and start blowing off components until it fixes it.

Usually you can pull a spark plug boot and blow air in that valley and a bunch of dirt/dust/small leaves and debris that got in there will come out watch your eyes wear safety glasses.

I would also blow on the connector for the TPS and the idlle speed control and the aid flow meter. Hell disconnect em and blow the water out of there. That should solve it. I would guess the TPS could effect it the most.

Last edited by ARZ; 10-27-2006 at 02:16 AM.
ARZ is offline   Reply With Quote
Old 10-31-2006, 06:41 AM   #7
suprra_girl
7M POWAH! ;)
 
suprra_girl's Avatar
 
Join Date: Jun 2004
Location: New Zealand
Posts: 2,312
suprra_girl has a spectacular aura aboutsuprra_girl has a spectacular aura about
Default

yep.. you got water in your electrical components... it'll dry out eventually and come right
__________________
Please use the forum to ask your questions as they will get replied to much faster than pming me

Pics of my build.

"Good girls are just bad girls that don't get caught"

Do a diagnostic first!
suprra_girl is offline   Reply With Quote
Old 10-31-2006, 06:54 AM   #8
tellfromchico,ca
Stock
 
tellfromchico,ca's Avatar
 
Join Date: Oct 2006
Location: chico,ca
Posts: 28
tellfromchico,ca is on a distinguished road
Red face

if it a 7mge try taking off the distributor cap to check for moisture, if 7mgte do the same for the cam position sensor
tellfromchico,ca is offline   Reply With Quote
Old 12-06-2006, 06:30 AM   #9
hyatt200
Stock
 
Join Date: Nov 2006
Location: western north carolina
Posts: 11
hyatt200 is on a distinguished road
Default pressure washers blues 2

i done the same thing. the motor looks great now ,but once warm, the idle goes up and down. i took it to the dealership. they told me my TPS was o.k. My MAP sensor was o.k. they said my idle speed control valve was not functioning properly and wanted to replace it for $478. i brought the car home and will check it out myself before looking for one.

before taking it there, i found that i flooded the area between the cam covers where the plugs are. fixed that. distributer was wet. fixed that. changed plugs , wires , distrib cap , rotor etc. drove it for days on end. finally gave up.

a haynes manually tells you how to test each sensor. you'll need a meter for that. mine's a Fluke brand meter. very time consuming.

hope this helps. no one ever answered me when i posted the same question. heck , i cant even find my posted thread. nice to see i'm not the only clean motor freak.
hyatt200 is offline   Reply With Quote
Old 12-06-2006, 09:00 PM   #10
tone loc
20psi boost
 
tone loc's Avatar
 
Join Date: Jun 2006
Location: Chicago
Posts: 706
tone loc is on a distinguished road
Default

that would suck if you have to pay 500 cause you washed your engine bay.
tone loc is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
cleaning an engine bay mnewxv Non-Generation Specific Questions 8 09-05-2008 02:22 AM
problem seperating engine from manual tranny Gengus MKIII Supra 7 01-29-2008 12:10 AM
Any tips for cleaning the engine bay? mkiiisupra MKIII Supra 8 01-28-2008 08:21 PM
engine cleaning suprabahamut Off Topic Forum 1 07-10-2007 02:26 AM
7mgte ENGINE IDLE PROBLEM>>>>>HELP PLEASE pei09 MKIII Supra 4 03-27-2006 04:50 PM


All times are GMT. The time now is 05:33 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

1986



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87