[divco13]

Has any of you swaped single port, to 4 port ( hole ) Injector's on your 1998- 5.9.
What Make, and Model / Year

Want to keep rate of flow the same, just better atomization.

Looked for a conversion chart on line, no luck

[zander21510]

I've done it on my 4.0...i've read from most places for the 4.0 and 5.2 the flow rate is the same, if its the same for the 5.9 then it should work. I pulled mine from 95-97 Cirrus. Look at your local JY for chrysler cars with 2.0 engines, the injectors have 2 numbers, one ends in 703. Its so easy I took the things out in about 10 minutes, installed in my jeep in about 20 minutes. Well worth it, idles smoother and better throttle response.

[melk]

#703 from mid-90s 2.4L Chryslers

#715 from mid-90s 4.6 & 5.0L Fords








Well worth the couple bucks to get new filter baskets IMHO

[Grand_ZJ]

Good info.

[Scottso699]

Originally Posted by divco13

Has any of you swaped single port, to 4 port ( hole ) Injector's on your 1998- 5.9.
What Make, and Model / Year

Want to keep rate of flow the same, just better atomization.

Looked for a conversion chart on line, no luck

I switched to Ford Racing 24lbs 4 port injectors on my 5.9L. I saw a boost in fuel economy. I imagine due to it being a better flowing injector.

[zander21510]

I remember reading about the flow rate for the 703's, supposedly they are rated lower than they actually flow...a few bench tests proved that they flow at the same rate as the stock injectors.

[CatSplat]

My 5.9 runs great on the 703's, your '98 should have no problems, especially with the higher fuel rail pressure. Change the internal filters, as mentioned (and pictured) above.

[MaintMech]

http://www.bonanza.com/booths/Turbop...TLE_CAPS___EV3

Rebuild kits. Another member provided this link. I'll be using it soon.

[divco13]

1. Just found this chart, on all fuel injector by Bosch.
   
2. http://www.justfuelinjectors.com/ser...CHRYSLER_MOPAR
   
3. Chrysler - Mopar Section, Look far right for application
   
   
4. Is the Impedance, High or Low ?

[divco13]

Originally Posted by CatSplat

My 5.9 runs great on the 703's, your '98 should have no problems, especially with the higher fuel rail pressure. Change the internal filters, as mentioned (and pictured) above.

Change the internal filters
Where are this on a 5.9 fuel rail ?

[CatSplat]

Originally Posted by divco13

Change the internal filters
Where are this on a 5.9 fuel rail ?

The injector filters are inside the top of the injectors themselves. They can be removed with an appropriately-sized (#10 usually works) metal screw and a pair of pliers.

This is the guide I followed the first time I did injectors; it is for older EV1 injectors with an external (and easily damaged) pintle, the 703s do not have that and thus are far less easy to damage:

http://www.rowand.net/Shop/Tech/DIYFuelInjectorCleaning.htm

The basics of replacing seals and filters is identical to the EV3s.

[divco13]

When we get done here we will have a nice data base, for All

There for, What is the full part # for the so called Bosch 703's

[CatSplat]

Part number 0-280-155-703.

http://www.jeepforum.com/forum/f13/d...4-0-a-1145336/

[divco13]

Originally Posted by CatSplat

Part number 0-280-155-703.

http://www.jeepforum.com/forum/f13/d...4-0-a-1145336/

[B][B]

Stock 98 injectors out of a 2.4 are 0-280-155-782 Bosch Injectors, part number 04669772.
21.3 lb/hr @ 43.5 psi.

Stock 96 injectors out of a 2.4 are 0-280-155-703 Bosch Injectors, part number 05277739AB.
16.75 lb/hr @ 43.5 psi.

Stock 97 injectors out of a 2.4 are 0-280-155-740 Bosch Injectors, part number 4669471AB.
21.1 lb/hr @ 43.5 psi

0-280-155-703 - - - Chrysler 4-2.4l, Dodge 4-2.0l

[jforse]

Originally Posted by Scottso699

I switched to Ford Racing 24lbs 4 port injectors on my 5.9L. I saw a boost in fuel economy. I imagine due to it being a better flowing injector.

Are these what they call EV6 blue tops?