The Definitive Injector Swap HOW TO - Page 3 - JeepForum.com

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post #31 of 675 Old 12-31-2011, 04:45 PM
torchd
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Quote:
Originally Posted by extrememarine View Post
Mine are going into a 318 - so I need 8. I ended up take 10 total - so I've got 2 spares right now. Let me know if you need a set, I can go back and get more.
Yeah I might need a set.. I really havent been able to hit the JYs

Are you also doing the new pintle cap, filter and basket?


1998 Jeep Grand Cherokee Laredo
2" BB Pucks | SkyJacker Hydro Shocks | Rubicon Wheels | Cooper 245/75/16 Tires

2002 Trans Am
Cam, Full Exhaust, Stock Heads, Stock LS6 Intake and Stock 10 bolt with 3.42s
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post #32 of 675 Old 12-31-2011, 08:44 PM
MilanJeep
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I went and got a bunch also...let me know if you guys need some

98 5.9 ZJ - 4.5" lift, 33x12.50 MT/R Kevlars
02 Z06 - Supercharged, E85, lots of rwhp, built and tuned by me

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post #33 of 675 Old 12-31-2011, 09:45 PM
torchd
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How much for the injectors. Send me a PM please so we don't violate the board rules

1998 Jeep Grand Cherokee Laredo
2" BB Pucks | SkyJacker Hydro Shocks | Rubicon Wheels | Cooper 245/75/16 Tires

2002 Trans Am
Cam, Full Exhaust, Stock Heads, Stock LS6 Intake and Stock 10 bolt with 3.42s
420 RWHP and 382 RWHTQ
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post #34 of 675 Old 01-10-2012, 01:10 AM
93zjbums
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when i did my 703 swap i already had one or 2 original injectors that were bad and just leaking in cylinder not spraying so my difference was huge. Mine starts like a normal jeep now not turn over for almost 8 secs before it catches and it idles a lot better and some of it smelling like unburnt gas out the tail pipe was gone

93 zj laredo 4.0 with k & n intake 2 inch bb skyjacker shocks and 31 bfg at
92 chevy cheyenne 4x4 w/t with 32in procomps "The Beast" 184k
92 honda accord ex
92 xj stock 358k miles wifes
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post #35 of 675 Old 01-10-2012, 02:15 AM
Carroll182
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How much for 6 of em? PM Me please.
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post #36 of 675 Old 01-10-2012, 01:46 PM
Jeep_zj93
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Ok so i dont know if im blind but im not sure if I saw what injectors to use on the 5.2L.
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post #37 of 675 Old 01-10-2012, 01:50 PM
Jeep_zj93
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Never mind. I didnt see the other pages. Im blind. lol
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post #38 of 675 Old 01-11-2012, 12:53 PM
moggie99
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I fitted mine yesterday and they seem to work nicely apart from the fact that instead of starting instantly (as the old ones did), the engine turns on the starter for an extra 1-2 seconds before catching. Anyone have any ideas?

Richard Moss
'96 ZJ 4L auto, '95 XJ 4L manual, 2000 Nissan Patrol Y61
In the UK: 1969 MGC GT
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post #39 of 675 Old 02-11-2012, 10:54 AM
hdrocknroll
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The junkyards around here will only sell the whole fuel rail, $80 for two rails with 703s, then add the repair parts and it's not worth it.

Always !! Keep A Firm Grip On Your Tool !!

Watch Out For The Air Hose Gone Wild!! Or Wear A Cup,: True Story


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Whats the worse that can happen? Your jeeps already broke.


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post #40 of 675 Old 02-12-2012, 01:00 AM
moggie99
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That's why I bought a set of rebuilt ones from ebay for about $125

EDIT: sorry - that should have been $150

Richard Moss
'96 ZJ 4L auto, '95 XJ 4L manual, 2000 Nissan Patrol Y61
In the UK: 1969 MGC GT
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post #41 of 675 Old 02-12-2012, 01:22 AM
hdrocknroll
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Quote:
Originally Posted by moggie99 View Post
That's why I bought a set of rebuilt ones from ebay for about $125
How did they work out ?
Can you give me the sellers name or a link

Always !! Keep A Firm Grip On Your Tool !!

Watch Out For The Air Hose Gone Wild!! Or Wear A Cup,: True Story


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Originally Posted by rooster51 View Post
Whats the worse that can happen? Your jeeps already broke.


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post #42 of 675 Old 02-12-2012, 02:50 AM
moggie99
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Quote:
Originally Posted by hdrocknroll View Post
How did they work out ?
Can you give me the sellers name or a link
I'll be honest and say that I haven't noticed a significant difference but I have also been making other changes to the Jeep as I go so don't really have a steady benchmnark. The injectors looked to be nicely overhauled (clean, new looking, well packaged). However, it does take a couple of seconds for the Jeep to start in the morning now whereas previously it was instant. Running seems good, though.

The seller was "fuelinjectorman". This should link to an active auction: http://www.ebay.co.uk/itm/300436250089

Richard Moss
'96 ZJ 4L auto, '95 XJ 4L manual, 2000 Nissan Patrol Y61
In the UK: 1969 MGC GT
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post #43 of 675 Old 02-12-2012, 04:02 AM
AVR2
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Can I suggest an addition to the how-to? Before you start the engine after doing the swap, turn the key to Run, leave it for a few seconds, then off, then repeat a few times. This will allow the pump to build up fuel pressure in the rail. Then go out and check the fuel rail area for leaks. If all is good, start the engine.
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post #44 of 675 Old 02-18-2012, 10:35 AM
augiedoggy
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I have just recently swapped the 703 injectors into my 5.9l in my 96 ram (rebuild ones) and its smoking and running very rich after resetting the pcm? my long term fuel trim is now at -33.6 as well as my short term fuel trim once it reaches temp and goes to closed loop operation?.(according to the torque app monitoring everythingin real time )... and the engine is smoking from all the fuel.
I dont see anyone mentioning the fact that the 5.2 and 5.9 was designed so the stock injector actually sprayed fuel onto the back of the closed hot valve to cause the fuel to vaporize and then enter the combustion chamber.... so ideally the feul timing has to be retarded about 4 degrees to work properly and take advantage of the wider spray pattern and atomized fuel?

On a side note I miss my cj7 and my wrangler...they were so much more reliable than my dodge till they rotted to pieces !.... I am looking for a TJ for the girlfriend now...
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post #45 of 675 Old 02-19-2012, 06:54 PM
extrememarine
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running rich and smoking

This may or may not apply to your situation - but i had a set of 703's that I installed before I tested them thoroughly. When I started the truck, I had black smoke and it was idling on 5-6 cylinders. It would smooth out some if I rev'd the motor, but it was not right. So I pulled them; and when I got around to testing them, I found 3 that were leaking under pressure. So I assume the smoke and miss fire at idle was from the bad injectors dumping fuel into the cylinder(s).

I just got a complete set installed last Thursday. The truck fired right up, a little rough on idle at first, but after 200 miles, it is running smooth. I have the Mopar Performance Intake (from Kolak), and these injectors seem to be working very well with it. MPG is up, and the truck pulls harder in the mid and upper range now according to the butt-dyno.


Quote:
Originally Posted by augiedoggy View Post
I have just recently swapped the 703 injectors into my 5.9l in my 96 ram (rebuild ones) and its smoking and running very rich after resetting the pcm? my long term fuel trim is now at -33.6 as well as my short term fuel trim once it reaches temp and goes to closed loop operation?.(according to the torque app monitoring everythingin real time )... and the engine is smoking from all the fuel.
I dont see anyone mentioning the fact that the 5.2 and 5.9 was designed so the stock injector actually sprayed fuel onto the back of the closed hot valve to cause the fuel to vaporize and then enter the combustion chamber.... so ideally the feul timing has to be retarded about 4 degrees to work properly and take advantage of the wider spray pattern and atomized fuel?

Semper Fi,

Extrememarine
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703 , 715 , ford , fuel injector , neon , swap

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