SVX Network Forums Live Chat! SVX or Subaru Links Old Lockers Photo Post How-To Documents Message Archive SVX Shop Search |
IRC users: |
#1
|
|||
|
|||
very high idle
ok so ever since i did the 5 speed swap my car likes to idle at 2k. Every third time or so i drive it it will idle normal. if i shut it off and restart it right away the idle stays high. any one else had this problem any ideas? where to start, other abnormal problems etc.
__________________
1991 xt6 eg33? 1993 gc track car |
#2
|
||||
|
||||
I have spent half my life with high idle but seem to be ontop of it pretty well now. In my case it was a number of problems over time not just one. Since your problem started after the gearbox change check the following.
Use a mirror and check under the snorkel to see if the rubber is folded back and leting air in. This is the first place to look. Check that all the hoses underneath are pluged in and none of the smaller ones like vacum got left off. See how that goes first. Tony
__________________
1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX. 1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC) 1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car. 1995 - SVX Green low k mint condiation. 1995 - SVX Rally car, ex Matts car. Now to be used on track. 1992 - SVX red & Black being converted to Mid Engine. 1995 - SVX Red 143,000 bit rough. Owned 5 others Subaru back to a 1974 1400 GSR. |
#3
|
|||
|
|||
ok so no vaccume leaks. I noticed today that if i drive it till it warms up park it for 5 minutes then get back in and drive it it idles normally around 800-1k. could my cold idle valve be sticking open?
__________________
1991 xt6 eg33? 1993 gc track car |
#4
|
||||
|
||||
No, this is the result of the 5mt swap. We have been dealing with it for years. Until I can hack a stock ECu with a 5mt in it I really cannot do much to fix it
Tom |
#5
|
||||
|
||||
Quote:
What is stopping you from hacking it? No time? No clue? I don't know anything about ECUs so...? |
#6
|
||||
|
||||
not time, don't have my ROM reader/writer yet. Plus, I don't have a stock car to work on
Tom |
#7
|
||||
|
||||
Quote:
Have a gander at my last post here:- http://www.subaru-svx.net/forum/show...453#post507453 Cheers, Trevor.
__________________
Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#8
|
||||
|
||||
Gee, I'd love to have your problem
__________________
Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#9
|
|||
|
|||
+1
arg damn minimum charter count to post
__________________
1991 xt6 eg33? 1993 gc track car |
#10
|
||||
|
||||
well why don't you try what trevor was suggesting in that link.... Looks to be a good fix
Tom |
#11
|
||||
|
||||
I just remembered a simple test to find out if the idle problem is 5 speed related or a physical. Turn you off your enviro system if the car idles with it off then its the 5 speed issue if its doesn't then you have a air leak problem.
Tony
__________________
1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX. 1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC) 1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car. 1995 - SVX Green low k mint condiation. 1995 - SVX Rally car, ex Matts car. Now to be used on track. 1992 - SVX red & Black being converted to Mid Engine. 1995 - SVX Red 143,000 bit rough. Owned 5 others Subaru back to a 1974 1400 GSR. |
#12
|
||||
|
||||
Quote:
What you are indicating is that the five speed problem does not exist when the enviro/AC system is loading the engine. Is this in fact the situation, as this represents an important clue?
__________________
Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#13
|
||||
|
||||
Yes it is very evident, also I think the stall problem is less if you run with the Eviro system off, this is what made me think the valve we are talking about in the other thread is over doing everything looking for a transmission load. I also supect but haven't confirmed that Tom's problem is the ECU is trying to pull the engine back fast so its cutting fuel. Because his engine is more responsive he is feeling the problem more. With the fuel thing I can't see any other choice but to rewrite part of the ECU code which will be real fun. Phil said it appears that the ECU works out a value but then over writes it in a couple of place in the program my guess is this will be Knock Sensor being to high and also the ECU wanting to slow engine fast based of the rate of speed drop and throttle gradient down curve.
__________________
1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX. 1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC) 1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car. 1995 - SVX Green low k mint condiation. 1995 - SVX Rally car, ex Matts car. Now to be used on track. 1992 - SVX red & Black being converted to Mid Engine. 1995 - SVX Red 143,000 bit rough. Owned 5 others Subaru back to a 1974 1400 GSR. |
#14
|
||||
|
||||
Jeff,
I haven't had a high idle problem on any of the 3 5-speed SVX's i'd had/done....except the first one, and it was i had left one of the tubes on the underside of the snorkle loose...installed it, and everything was fine. I'd keep looking for a vacuum leak...in the Eviromental system...the brake booster, the PCV system... That's all I got...
__________________
Huck Subaru Ambassador 92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD 88 XT6 AWD 5-Speed "Bride of FrankenWedge" 15 Impreza Premium Sedan 15 Crosstrek XV 5-Speed My 5-Speed "How-To" Write-up 1976 Pontiac Firebird Formula Current Count of Subaru's Owned.... "70" |
#15
|
|||
|
|||
Quote:
__________________
1991 xt6 eg33? 1993 gc track car |
Thread Tools | |
Display Modes | |
|
|