Understood. I'll probably end up going up to see Nick at NicSpeed in Denver and we'll work out a project for an FMIC.
Thank you for the reminder about the more sensitive diagnostic mode. I can give that a try sometime as well.
I tried to PM Mike92LX, but it came back no such user exists.
I took the Lorelei on a rather long ride yesterday from Colorado Springs Colorado to Laramie Wyoming--360 miles round trip up the 25 and across the 80 and back.
Because I have an afr and I know how to drive it, I kept it properly ratio-ed and was able to sustain 140kph (87mph) going uphill toward Laramie, and coming downhill back, afrs trended richer and higher speeds up to 160kph (99mph) were reachable for passing. On the steep climb from Denver to Colorado Springs, 120kph (75mph) was the rule--all of these are "fine" for driving, but of course any boost leaned the mixture out, and fuel pressures dropped. I had the feeling that this was a "pumping fuel uphill" issue or, more to the point, the motor wanted more flow pushing uphill than the pump wanted to deliver. In any case, it got me thinking that the fuel flow is the basis of the Lorelei's poor performance.
So, I'm out in the garage dropping the tank, having run most of the fuel out of it. I can look at the connections and see whether there's something apparent there, or replace the pump and see whether that corrects the issue. I've got the rally shield off and now I'm digging around for tips and tricks on dropping the tank and what to do with it once I've got it off.
EDIT: So far so good--all the steps are pretty straightforward in the BGB. There is no tank shield--the rally shield replaced the function of that, so I really shouldn't roll without that rally shield in place. The filler tube appears to be in good shape, but coated with a fine dusting of rust on the inside the tank section of tube. I suppose I can steel wool that and apply Ospho.
Allright, so here's my deal: (b) and (c) came off with the standard degree of hassle and reaching and twisting and pulling. And, happily, only a dribble of fuel. (a) is a different connector though. How do you like to disconnect that one? At the lower connection or higher up closer to the tank? Flare wrenches, I take it?
EDIT EDIT: CSAlltrac said this back in 2012--the search function is great on this board:
"Pump will be pretty straight forward and self explanatory when you see it. As far as dropping the tank, get yourself some penne lube for the fuel hardline fittings and be sure to use line wrenches, 14mm and 19mm I believe."
So now to spray some PB Blaster on the connectors and let it sit for an hour or so!
EDIT EDIT EDIT: **** flare nuts. **** flare nuts right in the ***. :bangshead:
Got the wrenches on, but man that front nut sure didn't like the 14mm flare wrench I brought to the game. It didn't want to go even with PB Blaster having been working at it for a good while. I'm going to let it continue to soak for a while, because it looks seized up. Just to be certain sure, lefty loosey still applies on that 14mm nut, right? I should be trying to clench the two wrench handles together to get it loose?