My WI system seems ready to go (If the damn tank I made doesn't leak AGAIN). I did a run without WI and it shows knock on 91 octane from 76 (no MTBE). I was...
... At a 50/50 ratio, denatured alcohol has been shown to eat the Shurflo pump seals. There was a discussion on this a few weeks ago on this list so you can...
Are any of you guys running a MAP system (speed density) and water injection? I'm wondering where to mount the intake air temp sensor relative to the water...
Besides this problem, my tank is in my trunk, and it has a little vent on it. I guess denatured alcohol vapor build up with be a bad thing? Especially in a...
I have a hobbs switch, one side is grounded, one side is going to the relay ground. input/output is hot +12V. trigger (ign) is fuel pump +12V I was adjusting...
I have an EMS but haven't installed it yet. I also plan to run WI but haven't planned it yet. 1992 Laser AWD turbo I would be interested in what you find out...
I need some technical info about the solenoid valve that Aquamist sells. I need to see if there is a nornally open verion of the same valve. Does anyone know...
... The EMS can do it, there are 2 PMW outputs. One for boost, one for other, and at least one other person has already done it. I'll post more info later....
... nozzle as close to the throttle body as possible. << Im probably being real dense here, but if the IAT sensor is mounted ahead of the WI nozzle, then how...
... You're not being real dense at all, and my point is neither is the air :) I'm struggling with the physics here though, and I'm asking myself the basic...
Hi, I don't have a diagram for you, but I think it should be easy to explain. I would use the 100psi pump. Hook the inlet of the pump to some tank (I found a...
What you're reading is the resistance of the relay coil, and then whatever ground path resistance there is of other accessories on the same + voltage line as...
... nozzle<< Youre forgetting something. Whether or not the winjection makes the air denser or not, your dme makes adjustments based on what the IAT sensor ...
After running water injection for a few days (but plugs are 3 weeks old).. I pulled them out and look: All 4 look about the same, the bottom about 2 turns of...
... That depends on your engine management. A stock ECU/MAF will have no idea that it can change timing advance because it's in open loop. You will get more...
Here's a good site off the Turbo Regal/GN site about spark plug reading. http://www.gnttype.org/techarea/engine/plugs.html Rick - '91 GSX [Non-text portions of...
Ken, ... tune? This is my guess: ignore AFR, keep it the same since you don't change it and can't measure it with WI. Keep timing the same. Just advance...
Ken, Do we really know that the stock ECU doesn't use the IAT for calculations during open loop. Why would it not use it as well as barometric pressure and ...
I've been happily lurking, not worrying too much about the specifics that have come up lately, mostly because I really don't have any way of tuning. But it...
The ECU doesn't care about your O2 reading at WOT. The driver might be confused if the O2 isn't right, however. I was going to as the same question. How does...
i belive this guy was referring to boosting not @ WOT, the pressure switch triggering the WI, and the computer getting a false o2 voltage. My 14B boosts crazy...
cummins24vpwr@...
Nov 10, 2002 8:35 pm
1619
Open loop should trigger at about 40% throttle with a stock ECU. Yes, if you did inject during closed loop I could see the O2's being affected, but how long...
This is not true of 2G DSMs - fuel trims are not used in open loop mode. 2Gs also go open loop a lot earlier than 40% throttle, it's around 20% IDC (though...
... Sorry, I was speaking for 1G ECU's. Although I'm surprised that the 2G ECU doesn't use the long term fuel trim to compensate for WOT. It ignores the o2...
... ambient (or slightly engine compartment heated) air temp<< Thats real interesting. Are you sure? On the BMWs like my M3, the IAT sensor is in the intake...
... is for a MAP system (speed density) and is located near the throttle body. << I should have included this in my earlier response to you. But, mine is not ...
... All I can say is BMW has more attention to detail :) Yes, the dsm's have the sensor pre-turbo integrated into a Karmen-vortex style MAF. <<shrug>> I...
... based on the long term O2 value from closed loop << I wouldnt say they are 'based' on the LTFT, as much as Id say they are influenced by them. Its a...
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