I Threw Gasoline On The Fire And Now I Have Stumps For Arms And No Eyebrows
05-30-2011, 09:44 AM
#81
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Ive run those plugs with cops for a long time, I'd probably be better off with BKR6Es, but whatever.
I just realized those plugs are gapped too low, I didn't get the -11s so these will be gapped closer to .030 than .040.
Are your AIT, CLT reading ok?
What happens when you go in boost? Is AFR aok in boost? Does it lean up?
What happens when you go in boost? Is AFR aok in boost? Does it lean up?
Long lazy shot: is there juice on the top of your pistons if you shine a light down the spark plug hole?
I'll read my narrowband voltage at idle today or tomorrow....been lazy.
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06-01-2011, 10:34 AM
#82
Just read this on MSextra. I haven't looked into it yet. Any thoughts?
Nevermind, I think this is referring to the injector open time, I though it was referring to the idle valve. Any headway on your problem. I'm amazed out how your description of the problem is identical to what I am experiencing.
The last few times I've had unstable idle, I've found my opening time (MS2Extra code) was not long enough. Once the opening time is correct, cars seem much less sensitive to VE tuning at idle. When oscillating, if you watch it rev, you'll see AFR lean out even though the pw doesn't seem to change that much. I think the PW gets to a small enough value that the injector output becomes non-linear (not what is predicted by fueling equation).
I've been out of the loop on this topic as I've been super busy this spring and getting married in less than 2 weeks...
I've been out of the loop on this topic as I've been super busy this spring and getting married in less than 2 weeks...
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06-01-2011, 10:58 AM
#83
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I'm pretty sure I've tried a 1.6ms deadtime then altering the req_fuel to get back to the AFR I was at prior...no avail.
and no update, ive been lazy.
idled like **** today with the a/c on. kept going from 13.5-16:1 AFR, I didn't have my laptop, but I know those cells were tuned and generally hold a pretty stable VE%.
I know this fuel map is good, and I drove on it for months without any tuning between March and April. I only had to fine tune some fuleing once I added the 255HP since it altered my fuel pressures. But none of my enrichments were touched and the idle cells were always perfect. If anything, there shouldn't be this notiable delay between when I touch the throttle and when the car moves...I'm finding myself blipping the throttle like crazy then releasing the clutch.
and no update, ive been lazy.
idled like **** today with the a/c on. kept going from 13.5-16:1 AFR, I didn't have my laptop, but I know those cells were tuned and generally hold a pretty stable VE%.
I know this fuel map is good, and I drove on it for months without any tuning between March and April. I only had to fine tune some fuleing once I added the 255HP since it altered my fuel pressures. But none of my enrichments were touched and the idle cells were always perfect. If anything, there shouldn't be this notiable delay between when I touch the throttle and when the car moves...I'm finding myself blipping the throttle like crazy then releasing the clutch.
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06-01-2011, 11:09 AM
#84
I'm pretty sure I've tried a 1.6ms deadtime then altering the req_fuel to get back to the AFR I was at prior...no avail.
and no update, ive been lazy.
idled like **** today with the a/c on. kept going from 13.5-16:1 AFR, I didn't have my laptop, but I know those cells were tuned and generally hold a pretty stable VE%.
I know this fuel map is good, and I drove on it for months without any tuning between March and April. I only had to fine tune some fuleing once I added the 255HP since it altered my fuel pressures. But none of my enrichments were touched and the idle cells were always perfect. If anything, there shouldn't be this notiable delay between when I touch the throttle and when the car moves...I'm finding myself blipping the throttle like crazy then releasing the clutch.
and no update, ive been lazy.
idled like **** today with the a/c on. kept going from 13.5-16:1 AFR, I didn't have my laptop, but I know those cells were tuned and generally hold a pretty stable VE%.
I know this fuel map is good, and I drove on it for months without any tuning between March and April. I only had to fine tune some fuleing once I added the 255HP since it altered my fuel pressures. But none of my enrichments were touched and the idle cells were always perfect. If anything, there shouldn't be this notiable delay between when I touch the throttle and when the car moves...I'm finding myself blipping the throttle like crazy then releasing the clutch.
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06-01-2011, 11:13 AM
#85
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Yeah, I'm running an alpha now that no one else is having the same issue with. I went back to a previous, and even the last "stable". Same thing.
But about the deadtime, it does appear that the PW output reporting does not include the deadtime, so I could see how that could effect someone when not setup properly. But I've been using these at the same deadtime for 4 years.
you are running seq. fuel right? how lean can you make it go before all hell breaks loose? I'm not talking oh its not as stable, I'm talking uncontrollable. But really, there should be no reason I should be reporting 13.5ish at idle at 160*F after my warmup enrichments are done and then see 11.9:1 once I reach 185°F. at the same engine map, same injector pw, and same rpm without something else ******* up the mixture.
But about the deadtime, it does appear that the PW output reporting does not include the deadtime, so I could see how that could effect someone when not setup properly. But I've been using these at the same deadtime for 4 years.
you are running seq. fuel right? how lean can you make it go before all hell breaks loose? I'm not talking oh its not as stable, I'm talking uncontrollable. But really, there should be no reason I should be reporting 13.5ish at idle at 160*F after my warmup enrichments are done and then see 11.9:1 once I reach 185°F. at the same engine map, same injector pw, and same rpm without something else ******* up the mixture.
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06-01-2011, 11:41 AM
#86
Yeah, I'm running an alpha now that no one else is having the same issue with. I went back to a previous, and even the last "stable". Same thing.
But about the deadtime, it does appear that the PW output reporting does not include the deadtime, so I could see how that could effect someone when not setup properly. But I've been using these at the same deadtime for 4 years.
you are running seq. fuel right? how lean can you make it go before all hell breaks loose? I'm not talking oh its not as stable, I'm talking uncontrollable. But really, there should be no reason I should be reporting 13.5ish at idle at 160*F after my warmup enrichments are done and then see 11.9:1 once I reach 185°F. at the same engine map, same injector pw, and same rpm without something else ******* up the mixture.
But about the deadtime, it does appear that the PW output reporting does not include the deadtime, so I could see how that could effect someone when not setup properly. But I've been using these at the same deadtime for 4 years.
you are running seq. fuel right? how lean can you make it go before all hell breaks loose? I'm not talking oh its not as stable, I'm talking uncontrollable. But really, there should be no reason I should be reporting 13.5ish at idle at 160*F after my warmup enrichments are done and then see 11.9:1 once I reach 185°F. at the same engine map, same injector pw, and same rpm without something else ******* up the mixture.
You could always throw in a couple of those radiator pellets and see if you notice a change. I occasionally get a little vapor at idle on startup and a bit of spray out of the exhaust, but I don't have any coolant loss from the radiator when I open it up. I'm wondering if the mist and moisture I'm getting is condensation in the exhaust system.
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06-01-2011, 12:06 PM
#88
Before I get flamed because these stop up heater cores and radiators> Everyone who thinks this can eat a dick. I've been running them in my system for 7 months. My coolant temps are excellent, no gunk, heater works, etc.
These are apparently used in new vehicles from some manufacturers to stop small head gasket leaks.
I swear I noticed a change in my idle within five minutes the first time I dropped these in. The idle completely smoothed out. This is what led me to believe I have some sort of small coolant leak that must seal as the engine heats up. It seemed fine for a little while, then the weird idle came back after a day of boost PID tuning.
These are apparently used in new vehicles from some manufacturers to stop small head gasket leaks.
I swear I noticed a change in my idle within five minutes the first time I dropped these in. The idle completely smoothed out. This is what led me to believe I have some sort of small coolant leak that must seal as the engine heats up. It seemed fine for a little while, then the weird idle came back after a day of boost PID tuning.
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06-01-2011, 12:14 PM
#89
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I'm probably going to be replacing the HG just for sanities sake. Might as well drop one in and see if there's an improvement in the meantime then I'd know for sure.
I do have a slight coolant leak that I cannot pinpoint. I can't see any exhaust smoke/vapor, only condinsation for the most part, but I'm probably running 90% water.
Honestly, I just need to do a leakdown test. Which I could do if I drove the car to my parents about 25 miles away, but I'm too lazy and cheap to do that. That's almost $10 in gas!
I do have a slight coolant leak that I cannot pinpoint. I can't see any exhaust smoke/vapor, only condinsation for the most part, but I'm probably running 90% water.
Honestly, I just need to do a leakdown test. Which I could do if I drove the car to my parents about 25 miles away, but I'm too lazy and cheap to do that. That's almost $10 in gas!
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06-01-2011, 12:20 PM
#90
I'm probably going to be replacing the HG just for sanities sake. Might as well drop one in and see if there's an improvement in the meantime then I'd know for sure.
I do have a slight coolant leak that I cannot pinpoint. I can't see any exhaust smoke/vapor, only condinsation for the most part, but I'm probably running 90% water.
Honestly, I just need to do a leakdown test. Which I could do if I drove the car to my parents about 25 miles away, but I'm too lazy and cheap to do that. That's almost $10 in gas!
I do have a slight coolant leak that I cannot pinpoint. I can't see any exhaust smoke/vapor, only condinsation for the most part, but I'm probably running 90% water.
Honestly, I just need to do a leakdown test. Which I could do if I drove the car to my parents about 25 miles away, but I'm too lazy and cheap to do that. That's almost $10 in gas!
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06-01-2011, 12:23 PM
#91
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That was my plan. I've done it that way before, just need someone to help lift....or a engine hoist works
thats the only part I dred, is lifting it off without help. Everything else is simple, I can have it ready to pull off probably within 30 minutes.
intake coupers takes a minute.
fuel lines take a minute.
unplgging the cop connectors and fuel harness is seconds.
draining the rad will take a few minutes, removing the upper hose is a seconds.
valve cover bolts and head bolts will take 5-10 minutes.
whats left? the exhaust? I'll either remove the manifold or just the DP...thats going to take the longest. I can pull the turbo in 10 mintes, I've timed that before...but i'd rather just do the DP.
I'll jus tbe pissed to find it was my IM gasket leaking coolant into the runners or something stupid. But I still dont know why my compression test is good and my coolant presusre test passed as well....although the last HG that failed did the same. leakdown instantly showed bubbles in the radiator. and the car overheated as soon as I drove it.
thats the only part I dred, is lifting it off without help. Everything else is simple, I can have it ready to pull off probably within 30 minutes.
intake coupers takes a minute.
fuel lines take a minute.
unplgging the cop connectors and fuel harness is seconds.
draining the rad will take a few minutes, removing the upper hose is a seconds.
valve cover bolts and head bolts will take 5-10 minutes.
whats left? the exhaust? I'll either remove the manifold or just the DP...thats going to take the longest. I can pull the turbo in 10 mintes, I've timed that before...but i'd rather just do the DP.
I'll jus tbe pissed to find it was my IM gasket leaking coolant into the runners or something stupid. But I still dont know why my compression test is good and my coolant presusre test passed as well....although the last HG that failed did the same. leakdown instantly showed bubbles in the radiator. and the car overheated as soon as I drove it.
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06-02-2011, 07:47 PM
#98
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I siphoned a little coolant out of my rad to run a half treatment of stop leak.
while i was i burped in the system I turned my makeshift siphon into a makeshift stethoscope. Inj 4 does not sound like the rest, it has a distinctly different clicking hertz rate and tone. im checking my ms3 outputs now on my stim, maybe I have a bad injector? Would probably do what's happening.
but then why would the issue happen with the 240s?
while i was i burped in the system I turned my makeshift siphon into a makeshift stethoscope. Inj 4 does not sound like the rest, it has a distinctly different clicking hertz rate and tone. im checking my ms3 outputs now on my stim, maybe I have a bad injector? Would probably do what's happening.
but then why would the issue happen with the 240s?
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06-02-2011, 10:34 PM
#99
I siphoned a little coolant out of my rad to run a half treatment of stop leak.
while i was i burped in the system I turned my makeshift siphon into a makeshift stethoscope. Inj 4 does not sound like the rest, it has a distinctly different clicking hertz rate and tone. im checking my ms3 outputs now on my stim, maybe I have a bad injector? Would probably do what's happening.
but then why would the issue happen with the 240s?
while i was i burped in the system I turned my makeshift siphon into a makeshift stethoscope. Inj 4 does not sound like the rest, it has a distinctly different clicking hertz rate and tone. im checking my ms3 outputs now on my stim, maybe I have a bad injector? Would probably do what's happening.
but then why would the issue happen with the 240s?
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