11 Comments

Glad you got the engine sorted out. I have a similar setup on my 05 cdi. Same Turbo, modified intake, deleted Intake flaps and egr, more efficient intercooler. How much did the tune set you back? Looks like my next step.

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Marcel, sounds cool! Did you buy your turbo from the same source I did? Are you here in the USA? I'd be interested to know what region.

Getting a good tune from Drew at Mid-Tennessee Diesel is really the best thing you can do, from where you are with this car (regardless of location). His prices are reasonable and he'll definitely want to talk to you. He's affiliated with the guys at Black Smoke https://www.blacksmokeracing.com/software-specialists/ and his phone number is Six One Five-601-17 Two Eight.

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Yes, I bought the turbo from the same source after you disassembled yours. It looked like it was put together well. I live in Stanley North Dakota. I will contact Drew and see what he has available.

I installed reman fuel Injectors last year from Autohausaz and they seem to work fine. However, my fuel mileage at best is now 34 from 41 to 43 mpg. I have walnut shelled the intake valves, cleaned the intake, changed the 02 and checked for boost leaks. It acts like the ecu is not learning after 5000 miles of driving. When the Injectors are changed and the trim numbers are inputted into the ecm, the computer resets the ecm to re-learn the fuel trim. As I understand it, I may be incorrect. Any thoughts on this?

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Interesting. I believe the whole point of the fuel trim is to establish a solid baseline that the computer works from, as it learns. The point would be to avoid starting completely from scratch. I could be wrong about that, too. I haven't changed my injectors, and so I haven't looked into this, yet. Eventually, I'll take another step with the injectors, pump, and get a turbo that's a bigger step up from this one. Meanwhile, I'd like to hear what you learn as you move forward. I've been doing more with the anti-censorship world, lately, but will get back to the fun stuff with diesels before too long.

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By the way, the turbo does actually seem to be at least a small upgrade over stock. I don't know how good the journal bearing really is in there, but the real bearing is the pressurized oil flowing through it, so metal-on-metal should be quite rare. I'll see how mine holds up.

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I will keep you in the loop on how things go. Appreciate the information.

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Got a hold of Drew today. We went over the car and decided I should re-install my old injectors. I bought and installed a set of injectors from Autohausaz 2 years ago, and come to find out they are Sprinter injectors. They were advertised as reman units for our car. Drew said that is not uncommon. So, change injectors and make sure car runs good, then tune!

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That sure sounds like Drew! His approach is very methodical and logical. I didn't know that people sold Sprinter injectors as upgrades. Sounds like they don't really work as intended, though. By starting with known good components, Drew will make sure that everything works correctly, wring out what's possible with the existing hardware, and then you can start upgrading hardware and tuning further. Drew's pricing is low enough that you can afford an iterative approach and with him you know that things are being done correctly.

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