How-To: Warm/Hot Starts (and cold ones) with E85
#76
Evolving Member
Join Date: May 2008
Location: Dallas, TX
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
I run FIC1050's and I did one mod fixed all my starting issues. Car starts everytime, any temp with foot off pedal.
Go to the ISCV Demand Startup CTS Adder (sub_1ebb8) set ALL values to 100%. fixed
(rest of fuel and other ISCV settings are at stock 8859015 settings)
Hope it works for you
edit: either fuel 85 mostly, then map switch to 93 as needed
Go to the ISCV Demand Startup CTS Adder (sub_1ebb8) set ALL values to 100%. fixed
(rest of fuel and other ISCV settings are at stock 8859015 settings)
Hope it works for you
edit: either fuel 85 mostly, then map switch to 93 as needed
Last edited by tnt1106; Nov 4, 2009 at 10:25 AM. Reason: fuels
#77
Evolved Member
iTrader: (2)
I run FIC1050's and I did one mod fixed all my starting issues. Car starts everytime, any temp with foot off pedal.
Go to the ISCV Demand Startup CTS Adder (sub_1ebb8) set ALL values to 100%. fixed
(rest of fuel and other ISCV settings are at stock 8859015 settings)
Hope it works for you
edit: either fuel 85 mostly, then map switch to 93 as needed
Go to the ISCV Demand Startup CTS Adder (sub_1ebb8) set ALL values to 100%. fixed
(rest of fuel and other ISCV settings are at stock 8859015 settings)
Hope it works for you
edit: either fuel 85 mostly, then map switch to 93 as needed
For cold starts on E85, you need a lot more fuel at 7C and below.
#78
Evolving Member
Join Date: May 2008
Location: Dallas, TX
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
That won't cure the issue that is being mentioned. That will simply add max ISCV demand for startup regardless of coolant temp. That may help hot or warm starts, but it will hurt cold starts. Seeing that you are in Texas, you probably haven't had the need to tune for cold starts on E85.
For cold starts on E85, you need a lot more fuel at 7C and below.
For cold starts on E85, you need a lot more fuel at 7C and below.
#79
Evolved Member
iTrader: (10)
I don't have my tuning laptop handy, but keep adding fuel. Don't be afraid to quadruple or even more. I have 1250s and at the colder temps I am using very large numbers.
Edit: Just checked my laptop...my value at 7C is 56. And that's for 1250cc injectors that flow 1264cc. So, if you are on smaller injectors than that, you will want an even bigger number.
Edit: Just checked my laptop...my value at 7C is 56. And that's for 1250cc injectors that flow 1264cc. So, if you are on smaller injectors than that, you will want an even bigger number.
The whole time I was thinking "This is either way too much fuel, or not enough". After the minor catch with 70ms, I knew I had to go higher.
I'll report back tomorrow night. Thank you all for your help and insight.
I do believe my car is running perfect now..........for now, until the next major discovery comes out that I'll have to play with.
#83
Evolving Member
iTrader: (16)
Join Date: Feb 2007
Location: Fort Wayne, IN
Posts: 347
Likes: 0
Received 0 Likes
on
0 Posts
^^ It's weird we have such different issues. For my warm/hot starts I zero'd out 34* and higher, then I lowered 20* to about half of stock. Works good, only thing that isn't perfect (not bad just not perfect) is when the car is almost cold again, like right below the line for "C" on the temp (forget the actual value off hand). Anything thing before/after that is perfect.
#84
Evolved Member
iTrader: (10)
^^ It's weird we have such different issues. For my warm/hot starts I zero'd out 34* and higher, then I lowered 20* to about half of stock. Works good, only thing that isn't perfect (not bad just not perfect) is when the car is almost cold again, like right below the line for "C" on the temp (forget the actual value off hand). Anything thing before/after that is perfect.
After seeing his table, and then others saying "you need more fuel", it was so contradictory. Weird. My case was definitely "need a lot more fuel".
I just did a another test start a few minutes ago....fired right up. I was getting ready to switch back to pump for the winter just for that reason. No longer.
#85
Evolved Member
iTrader: (10)
Well, I thought I fixed my cold start issue....I didn't. I went out and tried to start it for the first time of the day, just turned over with no signs of life.
I went inside, adjusted IPW, flashed, and it fired right up on the first try.....Just like last night. I'm noticing a trend here.
Here is a pic of the cranking log and current alt ipw settings. Tell me what you make of this mess.
Edit: That evoscan log pic is when the car started, I didn't log the no start unfortunately....well because I thought the bish would start.
I went inside, adjusted IPW, flashed, and it fired right up on the first try.....Just like last night. I'm noticing a trend here.
Here is a pic of the cranking log and current alt ipw settings. Tell me what you make of this mess.
Edit: That evoscan log pic is when the car started, I didn't log the no start unfortunately....well because I thought the bish would start.
#86
Evolved Member
iTrader: (2)
How many times did you try to start it...just once? If it's a 'need more fuel' issue, then it may start on the second or third try with a few second wait in between. if you only tried once or twice, then flashed and tried again, and it started, then it probably would have started by just waiting that amount of time and trying again.
If you're getting too much fuel, then starting with the gas pedal pushed a little should fire it right up.
It'll definitely be a little tricky to get it dialed in perfectly, but it sounds like you are at least on the right track.
If you're getting too much fuel, then starting with the gas pedal pushed a little should fire it right up.
It'll definitely be a little tricky to get it dialed in perfectly, but it sounds like you are at least on the right track.
#87
Evolved Member
iTrader: (10)
Tried to start it about two or three times. Waited about 5-10 minutes while adjusting ipw tables and then it started.
It's weird....there's like an "invisible coolant temp cutoff line" when it won't start-about 45-50*F coolant temp and below. Anything above that, it's fine. I'm just going to keep playing around with everything, it is getting better, that's for sure.
I appreciate everybody's help....I'll just keep playing around and let you know if I have a "eureka" moment.
It's weird....there's like an "invisible coolant temp cutoff line" when it won't start-about 45-50*F coolant temp and below. Anything above that, it's fine. I'm just going to keep playing around with everything, it is getting better, that's for sure.
I appreciate everybody's help....I'll just keep playing around and let you know if I have a "eureka" moment.
#88
Evolving Member
iTrader: (4)
Join Date: May 2007
Location: Plymouth, MI
Posts: 327
Likes: 0
Received 0 Likes
on
0 Posts
Funny you should say that, another member on this forum was kind enough to PM their IPW adder figures. This member was also on E with larger injectors (1250's I think), and his IPW table was basically the exact opposite of mine- especially for the colder temps.
After seeing his table, and then others saying "you need more fuel", it was so contradictory. Weird. My case was definitely "need a lot more fuel".
After seeing his table, and then others saying "you need more fuel", it was so contradictory. Weird. My case was definitely "need a lot more fuel".
#89
Evolving Member
iTrader: (16)
Join Date: Feb 2007
Location: Fort Wayne, IN
Posts: 347
Likes: 0
Received 0 Likes
on
0 Posts
Here is mine just for reference.
lan_evo_mr9 have you messed with your injector lantencies? I played with mine a little in the 11V and below range (just a pinch in the 11). I mostly decreased the value.
lan_evo_mr9 have you messed with your injector lantencies? I played with mine a little in the 11V and below range (just a pinch in the 11). I mostly decreased the value.
Last edited by Routybouty; Nov 6, 2009 at 01:55 PM.
#90
Evolved Member
iTrader: (10)
Yeah, as a matter of fact, I just did that last week. Lowered some latencies and lowered the scaling just a notch. Fuel trims are perfect- idle .07ish and mid is 1. I adjusted again today, and I am getting closer. I'll get it soon enough, it takes no more than 2 cranks now. That's acceptable, just not perfect.