Quote:
Originally Posted by ZLRob
Who's got one? I just installed mine and initial pressure settings are not what I am commanding from it. Do I need to lower or increase the DC settings on HPT or something? If you got a tune file I can compare it to that would be really helpful in getting this better set up. I don't know if pre and post sensor fuel pressure loss tables need reconfiguring as well or what.
Heck of a unit, I will open up by saying that right now. I absolutely love how seamless it is and how easy to integrate into the factory stuff it is.
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I had good luck initially, and am still working through part of it. I had changed a lot, because I already had a DSX Aux' kit on the car, but my settings when I switched to the Katech didn't result in to much crazy. I was getting a little too much pressure, but was on track to get it where I thought it should be, right or wrong.
- [6976] Increase to around the mid-to-upper 70s. This, I believe, is part of the control limit for the PRIMARY pump. If this is too low, the FPCM will lower PRIMARY PUMP duty cycle. You shouldn't have to go crazy on it, but I raised it a little higher than stock so it wouldn't kill pressure, and allow the AUX' PUMP to put in work.
- [6975] Increased to around [6976]. This is, I believe, the ceiling to the pressure the FPCM will allow the PRIMARY PUMP to maintain before it begins to pull duty cycle from it, to lower pressure. I keep this around the max' I have in [6976]
- [6970] Referenced FUEL PRESSURE/FUEL FLOW to figure through a MATH PARAMETER in the SCANNER. I can't get the SCANNER to give me an error, but I can at least track where the REQUESTED PRESSURE is, in the GRAPH, and apply changes to the cells that need it.
- [6971] Messed with this a little - probably not much effect
- [6972] Messed with this, too, without much effect
I'm not done in my FUEL PUMP saga. KATECH has been helping me out, and I should have a FINAL report in a couple weeks. As I already said - initially - I had a VERY smooth transition moving from my DSX controls to the KATECH pumps. I think it was close enough to the stock tune it wouldn't have needed much, as KATECH says. BUT - I never really finished with the tuning before crap went crazy. ANYWAYS - if you want to read a really brief recap, I'll add that below, but otherwise, to this topic/thread - that's about all I have. I wish I could help more, and if screenshots help, I'm happy to share. I just don't know how helpful they'll be.
RECAP:
I installed the pump the first time, and it was a struggle. I pulled the tank, added AUX' PUMP CONNECTIONS to the REFLEX CONTROLLER, but getting the lines in the tank disconnected and reconnected was a PITA. It was so much so, I had to drop the tank again...
I didn't clock the lines in the tank (the JET/VENTURI PUMP) correctly and they blocked the LEVEL FLOAT, so the gauge wouldn't read full.
Then I dropped the tank a month later, because I wasn't getting FUEL transfer from the other tank, and it ran the PASSENGER'S SIDE dry with about 5-gallongs left in the DRIVER'S SIDE SADDLE. I didn't have all the PUMP MODULE LINES to replace (because of trying to make sure I didn't damage any when installing/reinstalling several times now), so I used what I had, and jambed it back in.
Then I dropped the tank AGAIN, because I had most of the lines and just couldn't stop thinking about a possible leak I caused jambing that dang thing in there and out so many times now. I relaced every line that I touched, and left only one original line.
And that leaves me to today, when I receive another module to install. I'll be doing that this weekend, and adding a couple goodies for a little project I'm trying to help someone with. I think he's released an update on his website for it, but I wasn't told I could/should/can say anything, so I won't, but it's promising for his product and customers, and I'm excited with the testing I've seen and done. If you choose to read between the lines, you'll understand where to go and what you'll see.