well i seem to have found my rough idle,throttle responce and lack of power issue.


i replaced one injector when i got the rig along with a lot of other stuff. i had recently been getting the recall notices from the dealer for the cps and cruz. i have a friend that is a lead tech there so while it was at the dealer for the recalls, i had him flash the computer to run a better controbution test ( there is a tsb on this ill find the number if anyone else wants it ) so it now seems that i have 3 more weak injectors. i have run the controbution test quite a few times prior and only once got a code for cylinder 6. now it pops off 2,5,6. so im pulling all the injectors and having then tested by my local shop.

the problem to me starts if i need to replace at least those three. my local place will not rebuild , repair or hop up injectors anymore. they only sell new. they test the injectors ant idle, part thrrottle and WOT- they will sonic clean and install new orings and test for 35 each . i have been using this shop for years and tend to trust them. i have no problem buying new replacements, but at near 225 each ( my cost ) i wonder if i should spring for some stage 1 injectors. the local shop and a few other places that i have talked to say to stay away from the modded injectors. they have had too many issues with idle problems and failure rates.

so how long have you had your modded injectors, stage 1 or 2, mileage ? any issues ? do they idle the same ? any other little qurks ?

 

i will stand by Jim rose's work for the life of my diesel, i refer him when ever i can. Rosewood Diesel Shop

he will deffinetly hook you up for a very doable price

as for my injectors. my truck has had them for roughly 2+ years. i bought it with stage 1s and i put the 2's nozzels on them in the summer. there is no sound difference, its just adding fuel, and nozzels which make it a higher stage just empties the injectors faster. i get about 18-19 around town and 21+ when im nice to her on the highway. of course thats with my 5spd and intake exhaust and tuner to make it all happy. you have a 5spd so you dont have to worry about the additional power, mine takes the abuse and no issues just like the rest of the zf owners, as for the e4od guys... suckers!!! i wish you all luck, so done with that tranny lmao

but other than that, i havent thought twice about my decision on my injctors besides wanting bigger ones! getting stage ones is strickly adding more fuel, stock nozzel so its a great mid range adder and all around. when you start with higher injectors, nozzels make a huge difference. Heck, 80% of the time i stay in stock just because the power over stock with nozzels is extremely impressive.

 

rosewood was my first choise thanks to searching on here. and i have the zf with 4.10s. i have not found many posts on here or other sites relating to upgraded injector problems. however as a full time tech, i can tell you i have removed many performance parts due to driveability problems. i also hate doing things twice.

i really only want reliable with good power. it will be getting a few mods, from the 3" DP 4" catless, intake, 6 pos chip - along with the 7.3 intercooler i have planned. this trucks main purpose is to be a tow rig for my rock crawler. other than that i will just haul the family around.

 

ive had my rosewood stage one's for about a year now, my 140hp mode idles a lil differnt, but i think that is in the programming. i sent in some cores to jim that i had gotton off ebay so my truck wouldnt be down, and they turned out to be junk, and the stage one upgrade with the extra parts i needed was still way cheaper than a new set(including the price i paid for the cores). with a warrenty

 

It's amazing how many shops say to stay away from modified injectors. I can only imagine what their customers must have done to the trucks after the injectors and blame the shop's work. Either that or they simply don't know how to mod them correctly.

The only unreliable injector is one that is pushed to it's mechanical limits when built and you only see these in high HP applications. And even then, you can daily drive the things and the injectors only work in a certain range and should last forever.

If your shop says to NOT install modified injectors, that it's a bad idea that you'll regret, etc, you need to work with another shop. Not to say anything bad about them, but they've obviously been burned and are not going to help you.

Modified injectors, when done right, will not have any higher failure rate than a brand new injector. And if it doesn't idle right, then you don't have the proper tuning.

Tuning, tuning, tuning. Any time you change anything on your truck you should update your tunes accordingly. That's not 100% realistic, but as far as the computer is concerned that's what it wants to run purrrfectly.

I can sell you new Stage-1's for close to the price listed. Or I can save you a bunch rebuilding yours into Stage-1.
Let me know if I can help.

 

I cant vouche for long term issues with modded injectors but I just installed a set of Rosewood stage ones along with a TS chip and added a modded HPOP. You would love a similar combo as compared to stock. My current truck has never idled smoother and the responce to the pedal is sooo nice as compared to stock even with the chip in stock setting. I can respond intelligently ( I think?) about replacing injectors one at at time. We have been running 4-6 Powerstrokes ever since they came into being in the middle of 94 and a person can start chasing his tail real quick when the engines get up in miles and you try to work on the injectors one at a time as they go bad. Long ago we came to the conclusion that if the injectors have over 100K on them they all come out if one needs to come out, saves a lot of under the hood time and aggravation. I would give Jim a call or send an email and go with his recomendations and his services.

 

Another very satisfied customer of DZL JIM here. He rebuilt my tired stock injectors into budget Stage 1's in 2007, zero problems and money well spent.

 

Jim is there a specific tune or tuner you recommend for towing with your stage 1's? We're mailing you a set of injectors as soon as we have the money for the engine I'm rebuilding and I think I'm going to stage 1's. I still haven't decided on the hpop yet so whatever your recommendation is on that too I'll do it. I also don't want to hurt my reliability or mileage. We're planning a long trip to middle of nowhere Alaska next summer after all this is done.

FWIW shops that don't like mods get ticked off because of flat rate. It doesn't pay them to work around stuff they know absolutely nothing about. Think about it. Flat rate is designed for a stock vehicle as it came from the factory. Add in other stuff that will cause them to take longer and the mechanic gets screwed.

 

Jim For The Win again. I've had my Rosewood stage 1's for 4 years now. Only ever had a problem with 1 and that was the poppet valve. Since I did the upgrade myself, I only have me to blame. Mind you, it ran really well for 3 years before that. I would suggest the stage ones as a good reliable power adder that doesn't require too much in the way of supporting mods. Intake, downpipe/exhaust, and tuner. That is all.

 

Jim gets another vote. Fast service, good work, honest about mine being in good shape, just did the upgrade and nothing else. Not everyone is like that. In one year with no issues except I needed a stronger hpop to pull. He helped me in that situation too. Stocker wouldn't keep up for me.

 

I recommended sending yours in unless you can get known good cores. The eBay crap I bought had everything wrong with them
I was one nozzle away from getting 2's

 

thanks for all the responce guys.

jim - the price is only a small factor as far as im concered. i like knowing i can jump in my **** and drive as far as i want, knowing i wont have a problem. i can always use more power, but i dont want to upgrade everything all at once. is a tuner required to be reliable with stage ones ? should i toss on a downpipe and exhaust at the same time ? i plan on doing a lot to this rig - a intercooler, 3"dp, 4" exhaust, 6 pos chip, intake, perhaps a turbo upgrade ( as my compressor fins are a little damaged, sand blasted and a few knicks )

if i go stage ones - new ? rebuilt ? - i would send mine to be modded / tested but the truck has 180k on it, and like i said i want reliable. basicly i dont know what i want i just want it to run right and have decent power.


the shop as far as i know never did hop ups. they did rebuild them but got away from it when they could by them for what they were selling there remans for. they said if they are going to tear into one it will cost almost as much as a new one. so they like to sell new ones. they also used to install them - but no more. i dont know why -

 

RRanch,
Stage-1's are actually pretty generic and any of the custom tuners tunes should work well. Stay away from off-the-shelf stuff like Edge, Banks, Bully dog and go custom from PHP, DP-Tuner, Tony Wildman, etc. I sell PHP chips/tunes for OBS and Stage-1's because they are the same tunes I have in my DD and I love them.

HPOP, IMO a stock Super Duty 17° pump works well with Stage-1. If you like dealing with Bob at Diesel Site, then go for one of his ADR pumps. And the new Stealth drop-in is very attractive for the money, too.

Downpipe, Exhaust and Intake should be #1 priority, before anything else.

The Stage-1's will run exactly like stock injectors if there's no chip in the truck. A chip is required to see any performance gains with Stage-1, and again, reliability isn't an issue. The only reliability issue is if you're hard on the throttle a lot with the chip turned up you'll most likely toast your trans/clutch and turbo before anything else.

Overhaul vs Rebuild vs New is your call.
Cheapest option is to re-use your parts in an Overhaul if all the parts are good.
Next is a Rebuild which is more money but you get all new wear components like Plunger & Barrels and Nozzles. Maybe 90% of all AA's I work on need at least a new set of P&B's and maybe a nozzle or 2.
Last, and most expensive, is a brand new set of Stage-1's.
Keep in mind that you really do get what you pay for. The more expensive your options get the more new parts you get and the longer the injectors will last.
Having said that I sell maybe 8 new sets a year and I Overhaul or Rebuild around 200 set s a year. Most guys won't spend as much on a new set of injectors as what they paid for their truck.

I am not permitted to discuss specific pricing in an open forum so check out my site or shoot me an email to discuss options and pricing further.
Thanks,
Jim
sales@RosewoodDieselShop.com

 

again thaks for the reply jim. you will be getting an email from me soon .

im going to pull them next week along with some other little nagging problems. like the small exhaust leak from the driver side manifold - that i will be drilling and tapping for the pyro install at the same time. and new glow plugs, they all work but i dont want to take the covers off for say another 100k ---

 

Id say you will be getting an email from me soon as well....I cat wait!!!!!