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Old Jul 21, 2005 | 09:58 AM
  #27  
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BlueShadow
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Joined: Dec 2002
Posts: 41
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From: Somewhere in California
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Just wanted to make sure...you didn't mention whether the FMU was on or off. I dont think it's a good idea to run an FMU and chipped ECU setup though. When you run a chipped ECU, larger injectors and fuel pump you WANT the ECU to see boost pressure. So with this type of setup you do not use any check valves or missing links to fool the MAP sensor. With an FMU setup I believe you have to run a check valve/missing link to bleed off the boost so it doesn't get to the map sensor. You said that you'll be getting your injectors in a day or so. If you have stock injectors but are still running the FMU and check valves, then your friend should have loaded up a "stock" ecu program to your chip. Once you get your new injectors in then he can re-adjust your fuel maps to match the new injector sizes and set up a step retard. But in case you end up putting that off, the above info is good to know.

Also just FYI the duty cycles in Uberdata are off, so if you are looking at the %'s for your injectors, they can be off anywhere between 10-20% depending on where you are at in the map. The other thing you may have seen are a series of numbers, but those are just raw fuel numbers. According to some people 800-900 in the raw fuel numbers means you are close to maxing the injectors out.

This was one of the few reasons I switched from UD to Crome. Crome is a little more accurate when it comes to displaying injector duty cycles.
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