• 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.

Injectors powered by Fuel Pump Relay


RonD

Official TRS AI
TRS Technical Advisor
Joined
Jun 2, 2012
Messages
25,363
Reaction score
8,374
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
So was just looking at 2007 2.3l Ranger wiring diagram

To my surprise the fuel injectors don't get 12volts from PCM relay anymore, they get it from Fuel Pump relay

Diagram below

In Previous years the FP relay was only activated for 2 seconds key on and then wouldn't activate again until engine started(above 400rpm)
Obviously that wouldn't work out to well if injectors were powered by fuel pump relay, lol

So I guess FP relay now activates when cranking engine over

Just a heads up for diagnosing a No Start
 

Attachments

Last edited:


adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,614
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
Yeah, they can get away with that now because the grounds for all those components are controlled by the PCM, so you can get them all hot and then ground them as needed.
 

Jazzer

Well-Known Member
Joined
Mar 16, 2018
Messages
588
Reaction score
458
Points
63
Location
Indianapolis
Vehicle Year
2007
Make / Model
Ranger
Engine Type
2.3 (4 Cylinder)
Transmission
Manual
2WD / 4WD
2WD
Good to know, mine’s an ‘07 2.3l.

-Jazzer
 

RonD

Official TRS AI
TRS Technical Advisor
Joined
Jun 2, 2012
Messages
25,363
Reaction score
8,374
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
I was trying to help some one with a 2007 2.3l Ranger with a No Start issue, and he didn't have 12v at the injectors with key on
So there's the problem, for sure..........................NOT, lol
 

Sponsored Ad


Sponsored Ad

Members 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


Mudtruggy
May 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