I just replaced my injector nozzles with new bosio models and now when I start the car it is rough. When it warms up the car runs better, but it seems like it has a hint of a miss. Did I put together an injector wrong? This is the only mod I performed and it ran fine prior to this. Also the problem is really evident when the car is floored and about to shift into 4th gear. It really stumbles and almost does not want to shift. It is not a vacuum problem though. As I have fixed that problem and it shifts excellent before that.

At idle, crack each metal fuel line in turn until you find which inj is causing the problem. Reassemble that inj. If still runs rough, send that one (or better yet ALL) out to have its spray pattern checked and pop pressure balanced at an injector shop.

New nozzles is half the job, balancing is the other half.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

appreciate that sir I will do that tomorrow. Where to send the injectors and how much?

My 75 y/o father gets the title Mr & Sir, not me.

Try searching for a Bosch service center, an "old" MB indie mech or a big rig injection shop close to you.

Also, put your location and year/model in your "signature" (under User CP), helps us help you better.

Can also serach here. Try "pop testing".

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Okay, after running the car around a little bit today, it idles better than before with the stock nozzles, an seems to have a somewhat better pickup. I still have the issue though when floored and about to shift into high gear of sputtering. It is only evident when going from third to fourth at about 55 mph. The car pulls excellent all the way to this point. Should I let go and see if it fixes itself, or pull injectors and have them balanced and pop tested as was recommended to me last night. I have searched bosio nozzles and read that some people's cars ran rougher after initial install, only to have it improve after several hundred miles. Any help would be appreciated as always guys.

What type of car/engine ARE we talking about?

We still don't know.....

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

also what I thought was a miss last night apparently wasn't, as I took the fuel pressure off each injector one at a time this evening and noticed a definate idle change with every cylinder. So I guess she is firing on all 5.

1981 300d 617 5 cylinder turbo. Sorry I know there is a way to put this in my post but have not found it yet.

non turbo sorry

Change the fuel filters recently? Bubble in the prefilter? Check your linkage as well. Try cracking the lines and running the engine a little each time. Either way they should have been poptested. Changing needles may have changed the pop pressure a bit.

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

Don't the nozzles need about 500-1000 run in miles on them before poptesting?

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2000 VW Jetta TDI with 213,000 miles and climbing
84 300D non turbo getting ready for wvo conversion

well you could click on the User CP link at the top of the page, and edit the info into your signature, you can add your location as well.
John

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