• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Is the IAC valve pulse width modulated (PWM) or simply on and off? 1997 Ford Ranger 4.0L OHV


Se7enth Sol

New Member
Firefighter
Joined
Nov 28, 2021
Messages
13
Reaction score
1
Points
3
Location
New Jersey
Vehicle Year
1990
Make / Model
Ford Bronco II
Engine Type
4.0 V6
Transmission
Manual
2WD / 4WD
4WD
Currently doing a custom ECU and wiring harness on my 1997 Ford Ranger 4.0L OHV engine. For wiring purposes I need to know if the idle air control valve is pulse width modulated (PWM) or simply a solenoid that's on or off as needed. I haven't really found much information online after searching for a few hours. If you could shed some light on this I would be so thankful!
 

Attachments



rubydist

Well-Known Member
TRS Forum Moderator
Joined
Dec 16, 2016
Messages
1,058
Reaction score
887
Points
113
Location
Denver
Vehicle Year
2009
Make / Model
Ford Ranger FX4
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
They are pwm to get the amount of opening needed.
 

bobbywalter

TRS Technical Staff
TRS Event Staff
V8 Engine Swap
TRS Technical Advisor
TRS Banner 2012-2015
TRS 20th Anniversary
Ugly Truck of Month
TRS Event Participant
TRS 25th Anniversary
Joined
Aug 9, 2007
Messages
23,502
Reaction score
4,705
Points
113
Location
woodhaven mi
Vehicle Year
1988
Make / Model
FORD mostly
Engine Type
V8
Engine Size
BIGGER
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
sawzall?
Tire Size
33-44
My credo
it is easier to fix and understand than "her"




this style tends to work better with aftermarket controllers.
 

Se7enth Sol

New Member
Firefighter
Joined
Nov 28, 2021
Messages
13
Reaction score
1
Points
3
Location
New Jersey
Vehicle Year
1990
Make / Model
Ford Bronco II
Engine Type
4.0 V6
Transmission
Manual
2WD / 4WD
4WD




this style tends to work better with aftermarket controllers.

I am using a MS3X which is decidedly overkill for my project but it does support Ford PWM 2 wire IAC valves. If I do have trouble getting this to work I will definitely give this a shot next. Thanks for the input!
 

Sponsored Ad


Sponsored Ad

Staff online

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Truck of The Month


XLTsplash
June Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top