E85 blend help!!!
Thread Starter
Pro
Joined: Jul 2016
Posts: 748
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E85 blend help!!!
So my car is setup for e85/93 mix (e50) and it is terrible to try and start. I bought the car tuned how it is. I'm thinking I need to take it to my local tuner to try and fix. Cold starts are rough but even harder are warm starts. I will have to let it crank like 3 cycles of 5 seconds at a time to try to get it to fire up. Once the car is warm it drives perfect... thoughts?
Racer
Joined: Jul 2019
Posts: 411
Likes: 100
Sounds like the tuning is all out of whack. Use a very well known tuner for these cars! Mine is remote tuned from Crawford Racing on flex fuel and it runs great and starts up fine every time.
I wished I lived closer to Cordes Performance or Late Model Racecraft so I had to settle for email tuning.
I wished I lived closer to Cordes Performance or Late Model Racecraft so I had to settle for email tuning.
Thread Starter
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Joined: Jul 2016
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Originally Posted by orrwhat
Sounds like the tuning is all out of whack. Use a very well known tuner for these cars! Mine is remote tuned from Crawford Racing on flex fuel and it runs great and starts up fine every time.
I wished I lived closer to Cordes Performance or Late Model Racecraft so I had to settle for email tuning.
I wished I lived closer to Cordes Performance or Late Model Racecraft so I had to settle for email tuning.
Thread Starter
Pro
Joined: Jul 2016
Posts: 748
Likes: 40
Originally Posted by Kingtal0n
Are you saying it has a flex fuel sensor?
There is a big diff between flex fuel and needing to hit a target specific ratio to satisfy a non-flex tune and u were not clear on that point
There is a big diff between flex fuel and needing to hit a target specific ratio to satisfy a non-flex tune and u were not clear on that point
Safety Car
Joined: Oct 2007
Posts: 4,222
Likes: 1,080
From: South Florida
The first thing I would do is eliminate the fuel rail prime as the issue. Around 80% or 90% of the vehicles I tune with hard start issues are due to the fuel draining back to the tank when it sits, and being hot often exacerbates the issue for some reason. \
Before cranking, prime the fuel system several times (key on/off like 4 times until you hear the air push out of the fuel pump into the tank for example).
You could also just trip the fuel pump relay manually instead of key on and off so many times, let it circulate fuel for a while, then try to start.
IF it still has an issue, the next step after fully prime is to give it some air (open the throttle body / step on the gas pedal) to see if its just injecting too much fuel.
between those two tests you will know whether its too much fuel, or too little
Before cranking, prime the fuel system several times (key on/off like 4 times until you hear the air push out of the fuel pump into the tank for example).
You could also just trip the fuel pump relay manually instead of key on and off so many times, let it circulate fuel for a while, then try to start.
IF it still has an issue, the next step after fully prime is to give it some air (open the throttle body / step on the gas pedal) to see if its just injecting too much fuel.
between those two tests you will know whether its too much fuel, or too little
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