-
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.
2.9 to 4.0
- Thread starter Jolleyman
- Start date
- Joined
- Jun 2, 2012
- Messages
- 25,364
- Reaction score
- 8,423
- Location
- canada
- Vehicle Year
- 1994
- Make / Model
- Ford
- Transmission
- Manual
Welcome to TRS 
Engine conversion articles are here: http://www.therangerstation.com/tech_library/index-conversions.shtml
Read this one first: http://www.therangerstation.com/tech_library/4L_Conversion_faqs.shtml
1990-1994 4.0l Ranger manual trans computer(EEC-IV/OBD1) and wiring harness would be the best choice.
2.9l M5OD trans will bolt to the 4.0l engine, use 4.0l clutch parts.
2.9l would use a MAP sensor on the firewall as main air/fuel sensor, 4.0l used MAF(mass air flow) sensor on the air cleaner box.
In 1995/6 4.0l MAF sensor changed from 4 wire to 6 wire, the IAT(intake air temp) sensor was taken off the upper intake and moved to the MAF sensor, the extra 2 wires.
The 1997 won't have the IAT sensor on the upper intake, but the 1994 and earlier wires for it will be there at the upper intake, you can use a 6 wire MAF sensor and just reroute the 2 IAT sensor wires over to the MAF and connect them there.
You will need the 6 wire MAF connector as well because 1990-1994 wiring harness will have the 4 wire MAF connector.
Or you could change the upper intake, take 1997 upper intake off and replace it with 1994 or earlier upper intake, and use 4 wire MAF sensor, then wiring would match.
4.0l never used a distributor, 1990-1994 used an EDIS-6 module, 1995 and up had the newer Ford computers(EEC-V/OBD2) that had the EDIS module built in.
Older EEC-IV has 60 wires, newer EEC-V has 104 wires, EEC-IV is less complicated for 1989 since that is what you have now.
Google: EDIS-6
To see what it looks like, it is usually on the Rad support front or back side and it is plugged into engine wiring harness
Engine conversion articles are here: http://www.therangerstation.com/tech_library/index-conversions.shtml
Read this one first: http://www.therangerstation.com/tech_library/4L_Conversion_faqs.shtml
1990-1994 4.0l Ranger manual trans computer(EEC-IV/OBD1) and wiring harness would be the best choice.
2.9l M5OD trans will bolt to the 4.0l engine, use 4.0l clutch parts.
2.9l would use a MAP sensor on the firewall as main air/fuel sensor, 4.0l used MAF(mass air flow) sensor on the air cleaner box.
In 1995/6 4.0l MAF sensor changed from 4 wire to 6 wire, the IAT(intake air temp) sensor was taken off the upper intake and moved to the MAF sensor, the extra 2 wires.
The 1997 won't have the IAT sensor on the upper intake, but the 1994 and earlier wires for it will be there at the upper intake, you can use a 6 wire MAF sensor and just reroute the 2 IAT sensor wires over to the MAF and connect them there.
You will need the 6 wire MAF connector as well because 1990-1994 wiring harness will have the 4 wire MAF connector.
Or you could change the upper intake, take 1997 upper intake off and replace it with 1994 or earlier upper intake, and use 4 wire MAF sensor, then wiring would match.
4.0l never used a distributor, 1990-1994 used an EDIS-6 module, 1995 and up had the newer Ford computers(EEC-V/OBD2) that had the EDIS module built in.
Older EEC-IV has 60 wires, newer EEC-V has 104 wires, EEC-IV is less complicated for 1989 since that is what you have now.
Google: EDIS-6
To see what it looks like, it is usually on the Rad support front or back side and it is plugged into engine wiring harness
Sponsored Ad
Sponsored Ad
Staff online
-
Jim OaksJust some guy with a website
-
Robertmangrum.rmWannabe Overlander
TRS Events
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 Year
Kirby N.
2024 Truck of The Year!
Recently Featured
Vagabond Video
TRS Merchandise
Follow TRS On Instagram
