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Author
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Topic: Adjusting idle on fox body 5.0
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JohnCM
CAFords OG
Member # 1076
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posted
 
 
Alright, I got a mass air conversion all done. I like the idle, but I just need it bumped up 100 RPM's or so. I heard how to do it earlier in the night but I forgot what you have to unplug.
Do you unplug TPS sensor and then adjust it, and then plug TPS back in. Or the big cylindrical thing and then adjust and then plug back in???
I totally forgot how to do it, any help would be greatly appreciated. Thanks! ![[patriot]](graemlins/patriot.gif)
Posts: 3545 | From: Roseville | Registered: Mar 2002
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
The "big cylindrical thing"...(Idle air control valve)Unplug that then you can adjust your idle screw..
[ January 18, 2003, 11:58 PM: Message edited by: Black94 5.0 ]
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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JohnCM
CAFords OG
Member # 1076
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posted
OK SO, Basically I
1. Start car
2. Unplug IAC
3. Adjust Idle
4. plug IAC back in
That's correct?
![[Confused]](confused.gif)
Posts: 3545 | From: Roseville | Registered: Mar 2002
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Stimson
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Member # 51
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posted
If you're lazy like me, just tighten the idle screw and the EEC will figure out the IAC stuff in a minute or so. This works if your TPS isn't set really close to 1 volt. Either way is fine. Just make sure you don't tip the TPS over 1 volt by tightening the idle screw.
Posts: 2373 | Registered: Jun 2000
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
quote:
Originally posted by Clark:
OK SO, Basically I
1. Start car
2. Unplug IAC
3. Adjust Idle
4. plug IAC back in
That's correct?
Yes that's correct! But like Sawson said, after you set up your idle check to make sure the TPS is no more than .998 volts!
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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JohnCM
CAFords OG
Member # 1076
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posted
thanks!
Posts: 3545 | From: Roseville | Registered: Mar 2002
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91PONY
Mrs. Valve Events
Member # 206
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posted
Here's the procedure from Corral.net...
Clear the EEC-IV's idle memory by disconnecting the battery for 20+ minutes.
Disconnect the Idle air bypass solonoid
Reconnect battery
Start engine and set idle speed to desired RPM with stop screw on throttle body (900 rpm works great with E303 or larger cam)
Turn off engine and reconnect the air bypass solenoid
*Optional -- set TPS to 0.90 - 0.95 volts (Do not exceed 1.0 volts MAKE SURE!) Use a digital volt meter!
Start engine and let it idle for 2 minutes with no accessories on.
Turn off engine for two minutes
Start engine again and run for 2 minutes with every accessory turned on.
Turn engine off again.
Your computer should have now re-learned the new idle settings. This procedure assumes that you have a clean IAB valve. If it is carboned up then you may need to remove it and clean it with carburetor cleaner.
~Heather
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Heather '91 GT
Posts: 1477 | From: Citrus Heights, CA | Registered: Mar 2001
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Stimson
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Member # 51
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posted
I guess this proves I'm the laziest, Black94 5.0 is a little less lazy and corral.net makes everything complicated ![[Wink]](wink.gif)
The real reason I replied....
Use a Penny to tighten the idle screw. It fits and works perfect since I don't have a stubby flat head.
Posts: 2373 | Registered: Jun 2000
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Gear Head
JARED
Member # 779
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posted
Whata re al of you guys idleing at? Would you benefit any from bumping your idle up to around 900 from say 700??? Wonder if my auto would be able to get out of the whole a little better maybe?
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
Thats some funny shit Sawson!!...you are very resorceful...What are your uses for dimes and quarters? ![[Big Grin]](biggrin.gif)
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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Stimson
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Member # 51
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posted
Dimes and Quarters? Too precious! If I had dimes and quarters, you'd think I'd just buy the stubby flat head I need to adjust the idle screw
91sleeper- what you need to get out of the hole faster is a 3000-3500 RPM stall converter ![[burnout]](graemlins/burnout.gif)
[ January 19, 2003, 12:27 PM: Message edited by: st5150 ]
Posts: 2373 | Registered: Jun 2000
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
quote:
Originally posted by 91sleeper:
Whata re al of you guys idleing at? Would you benefit any from bumping your idle up to around 900 from say 700??? Wonder if my auto would be able to get out of the whole a little better maybe?
...I think you would just be wasting gas,if you put the idle up to 900RPM...If you want your auto to get out of the hole better, have you tried stalling it? (Putting your feet on the brake pedal and the accel. pedal at the same time)
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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Gear Head
JARED
Member # 779
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posted
quote:
Originally posted by st5150:
Dimes and Quarters? Too precious! If I had dimes and quarters, you'd think I'd just buy the stubby flat head I need to adjust the idle screw
91sleeper- what you need to get out of the hole faster is a 3000-3500 RPM stall converter
Actually i am saving for a 5 speed swap.
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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Gear Head
JARED
Member # 779
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posted
quote:
Originally posted by Black94 5.0:
quote:
Originally posted by 91sleeper:
Whata re al of you guys idleing at? Would you benefit any from bumping your idle up to around 900 from say 700??? Wonder if my auto would be able to get out of the whole a little better maybe?
...I think you would just be wasting gas,if you put the idle up to 900RPM...If you want your auto to get out of the hole better, have you tried stalling it? (Putting your feet on the brake pedal and the accel. pedal at the same time)
Yeah I have brake stalled, the stock converter sucks alot it has like zero stall speed. Thats why my times are so slow. I am just going to do a 5 speed swap. That will pick up my times a lot and the fun factor. I want to be able to do cruises and take my car to some open track events like Thunder hill. It kinda sucks doing twisties with an auto.
![[Roll Eyes]](rolleyes.gif)
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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JohnCM
CAFords OG
Member # 1076
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posted
ALRIGHT! MUHAHAH, I get it now!!!
Thanks everyone, You guys are so smart! ![[worship]](graemlins/worship.gif) ![[dance]](graemlins/dance.gif)
Posts: 3545 | From: Roseville | Registered: Mar 2002
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JohnCM
CAFords OG
Member # 1076
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posted
Something's not right ![[Mad]](mad.gif) ![[Frown]](frown.gif) ![[BS flag]](graemlins/bs_flag.gif)
Now, when I downshift, it backfires. And throttle takes days to get back down if that makes sense.
Now, I did it correctly. I took off and I could totally tell something's wrong. When I rev it, RPM's would drop like they should. Now it takes a while to get RPM's back down. Any suggestions? Is there a way to turn it back?
Posts: 3545 | From: Roseville | Registered: Mar 2002
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JohnCM
CAFords OG
Member # 1076
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posted
I guess what I mean is, Can I start over now???
Posts: 3545 | From: Roseville | Registered: Mar 2002
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Stimson
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Member # 51
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posted
Sounds like you tightened the idle screw so much, the TPS is now over 1 volt.
[ January 19, 2003, 03:40 PM: Message edited by: st5150 ]
Posts: 2373 | Registered: Jun 2000
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JohnCM
CAFords OG
Member # 1076
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posted
So is the TPS bad now? I don't have a voltmeter, How much are they?
Posts: 3545 | From: Roseville | Registered: Mar 2002
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JohnCM
CAFords OG
Member # 1076
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posted
double post
[ January 19, 2003, 03:48 PM: Message edited by: Clark ]
Posts: 3545 | From: Roseville | Registered: Mar 2002
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Stimson
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Member # 51
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posted
Its not bad, but probably not adjusted right. Get a digital volt meter. They're always on sale at Harbor Freight. $10-25 and it'll come in very helpfull throughout your life.
Posts: 2373 | Registered: Jun 2000
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JohnCM
CAFords OG
Member # 1076
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posted
The idle was just about as good, is there just a way that I can put it back where it was???
Posts: 3545 | From: Roseville | Registered: Mar 2002
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Stimson
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Member # 51
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posted
I'm not sure I understood that fragmented sentence, but if you want to go back to the way it was simply undo what you just did.
Posts: 2373 | Registered: Jun 2000
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J's DDLY SNK
¯
Member # 2016
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posted
Turn the car on and let it warm up a few minutes (5).
Remove the IAC and adjust the idle to 500-600 RPM. There is usually a gold/coper like screw on the Throttle Body (BBK) or a silver one on the Ford models.
Place the IAC back on and the car will return to computer controlled idle.
Turn the car off after a few minutes.
Then with a voltmeter set the TPS at .99 -.97 volts.(or as close as you can get without going over.99)
Turn the ignition on but dont start the car up, just keep it in the on position.
Connect the positive lead of the meter to the grey w/ white strip.
connect the negative lead of the meter to the grey w/ red strip.
Once you reach the desired reading tighten down the TPS.
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Rest In Peace
Juan Moya "The King Cobra"
11/16/81 - 8/20/05
We Will Never Forget You
Posts: 649 | From: San Jose | Registered: Oct 2002
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JohnCM
CAFords OG
Member # 1076
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posted
Everytime I unplug the IAC the car dies!
Posts: 3545 | From: Roseville | Registered: Mar 2002
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