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E85 starting : SOLVED

Posted: Fri Nov 11, 2011 6:01 pm
by FreshDA9
having an issue with a car that is running E85. only problem is getting it started. the tuning is going great but when we shut the car off it will not start on its own power. it will start on starting fluid.

I have tried adding to the crank fuel table with no luck
30%
60%
90%

Car is a 14:1 compression LS bored to 84mm. when i was there it was on oem fuel pump. He tried again with a walboro 255 and still nothing. any help please!

Re: E85 starting

Posted: Mon Nov 14, 2011 2:08 pm
by surfingsk8r
Try taking fuel out cranking like -30% ether is super volitale and as such burns very fast E85 burns slowly so decreasing the amout of fuel being injected should increase the oxygen level that is in the fuel mixture and make it burn a bit faster in theory. which in turn should help with your starting problem.

Re: E85 starting

Posted: Tue Nov 15, 2011 7:23 pm
by FreshDA9
im pretty sure i did pull fuel and it didnt work. will try again and report back. what you say makes sense thanks.

Re: E85 starting

Posted: Tue Jan 03, 2012 10:28 pm
by FreshDA9
pulled fuel and no help. sorry for the long update. still will not start o its own. is there work that needs to be done on the iat and ect tables? apparently the cranking fuel is doing nothing for me.

Re: E85 starting

Posted: Wed Jan 04, 2012 10:12 am
by surfingsk8r
Does it start when the engine has been running for a while before you shut it off (when the engine is still hot) or does it just never start on its own no matter the condition.

Re: E85 starting

Posted: Wed Jan 04, 2012 7:21 pm
by FreshDA9
some more info form him it will not start cold or after fully warm. after running letting it cool down about 20min it will start on its own???

Re: E85 starting

Posted: Thu Jan 05, 2012 7:36 am
by surfingsk8r
Well Im not sure if this is going to help or not but I adjusted the base cranking pulse vs ECT table so that It fit the information you gave me about when it will start on its own so hopefully this helps.

Re: E85 starting

Posted: Thu Jan 05, 2012 4:17 pm
by FreshDA9
yea i played with that table last nigt with some over the phone support. we got it to start but we found a battery issue. going to take care of battery problem then try again.

Re: E85 starting

Posted: Sat Jan 07, 2012 7:32 pm
by FreshDA9
BAttery problem fixed and using the table worked. this is fixed now.

Re: E85 starting : SOLVED

Posted: Mon Jan 09, 2012 7:54 am
by surfingsk8r
Im glad to hear you got it figured out. If I may ask what were the final values that were put in to the talbe to make it work.

Re: E85 starting : SOLVED

Posted: Thu Jan 19, 2012 7:40 pm
by FreshDA9
sorry for the long response. it took 30ms to get it to start on its own in the last 4 columns. this is still on the stock pump. he got a bum walboro when we did the testings but now has another new one to put in and we will try lowering the number.

Re: E85 starting : SOLVED

Posted: Tue Feb 07, 2012 5:03 am
by Johnny_9
what is your timing at 500 rpm load 9/10 (just after firing?) should you retard a bit from stock -4, since u got 14:1 compression?