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Old 06-17-2014, 12:21 PM   #29
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Any updates on the potential injector clogging issue? If running E10/E0 gasoline does clean up deposits, how often should it be done?

@Hawaiian @reeves @CaptainSlow @post_break @mikalem @shiv@vishnu

The following thread discusses decreasing the throttle relearn time for those flashing back and forth. I've found the 5x pedal down then on trick worked (post #13). Wasn't the only thing I tried after a new map though. I didn't try steve's method yet.

http://www.ft86club.com/forums/showthread.php?t=39480
After reflashes I just let the car idle for a little while. You need to have the cams turn on, but that's the extent of it.

As far as how often, or even IF it should be done, I'm not sure. I tend to run a cycle of pump gas every 10th tank or so (more out of necessity due to bad planning on my fill ups). If you let 85 sit for a while, it's not a great idea, but if you drive your car fairly often (I go through about 17 gallons a week) you shouldn't have any major issues.

My stock injectors looked to be in pretty good shape when I switched to the ID1000s, and so did my fuel pump.
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Old 06-17-2014, 01:12 PM   #30
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Should I be worrying about the number of times flashed from tune to tune? I mean, won't the ecu eventually become corrupt after a certain number of flashes or am I making a bigger deal out of nothing. I think about this with each flash.
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Old 06-17-2014, 01:47 PM   #31
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Should I be worrying about the number of times flashed from tune to tune? I mean, won't the ecu eventually become corrupt after a certain number of flashes or am I making a bigger deal out of nothing. I think about this with each flash.
As far as I know the ECU is one of these

http://www.renesas.com/products/mpum...7059/index.jsp

Uses flash memory could expect about 10,000+ cycles if all goes well

http://www.google.com.au/url?sa=t&rc...68911936,d.dGI
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Old 06-17-2014, 01:51 PM   #32
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I personally have inspected my injectors Fter 8-12k of e85 use and they looked fairly clean. I rarely got below e50. I'll be pulling my injectors again in the next month or two as we'll and inspecting after another 5-6k of use. As others have mentioned running gasoline ocassionally may be a solution. However at this time I haven't seen any issues.

Also in the topic of Ecu flashing yes it can wear out. I haven't heard any reports of anyone having theirs failed yet. A number of people guessed possibly 1000-1500 flashes may be the life cycle. Personally I have roughly 600+ flashes on mine and I have had an odd issue where the Ecu randomly doesn't seem to operate but this may be rom based or another issue and nothing to do with my Ecu. Typically when the Ecu fails you can't flash it and if I reflash mine it works just fine.
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Old 06-17-2014, 02:18 PM   #33
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Quote:
Originally Posted by unsurety View Post
Any updates on the potential injector clogging issue? If running E10/E0 gasoline does clean up deposits, how often should it be done?

@Hawaiian @reeves @CaptainSlow @post_break @mikalem @shiv@vishnu

The following thread discusses decreasing the throttle relearn time for those flashing back and forth. I've found the 5x pedal down then on trick worked (post #13). Wasn't the only thing I tried after a new map though. I didn't try steve's method yet.

http://www.ft86club.com/forums/showthread.php?t=39480
I pulled my port injectors recently after running straight E85 (80%) for about 17,000 miles, with maybe 2 tanks of 91 mixed in there somewhere. Injectors looked fine.. I can post some pics later tonight.
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Old 07-30-2014, 01:39 AM   #34
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I pulled my port injectors recently after running straight E85 (80%) for about 17,000 miles, with maybe 2 tanks of 91 mixed in there somewhere. Injectors looked fine.. I can post some pics later tonight.
Pics please
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Old 07-31-2014, 04:39 AM   #35
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Pics please
Oops.. Forgot about this. Let me take some pics tomorrow
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Old 08-01-2014, 05:26 AM   #36
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Pics please

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Old 08-01-2014, 05:52 AM   #37
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A little off-topic, but I'm curious as to why USDM cars have grey port injectors while the ones in my JDM spec are orange. I wonder what the difference is? You guys also have clip on fuel lines while ours are clamped

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Old 08-01-2014, 01:00 PM   #38
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Is anyone running the OFT with a flex fuel kit?

And would it work for a mix of 93 and e85 work with the OFT e85 map?

Sorry for the noob question there is no much info im just trying to wrap my head around the basic ideas.
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Old 08-01-2014, 01:16 PM   #39
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Is anyone running the OFT with a flex fuel kit?

And would it work for a mix of 93 and e85 work with the OFT e85 map?

Sorry for the noob question there is no much info im just trying to wrap my head around the basic ideas.
At this point, OFT does not support flex fuel. You can mix a little bit of 93 with E85 and use the OFT E85 map, but it's not ideal.
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Old 08-01-2014, 01:51 PM   #40
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At this point, OFT does not support flex fuel. You can mix a little bit of 93 with E85 and use the OFT E85 map, but it's not ideal.
Gotcha thanks for the reply
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Old 08-01-2014, 09:56 PM   #41
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Cumulative experience of all of our customers is probably 100's of thousands of miles. Many of them run flex fuel and/or e85. Our car just crossed 30k miles, probably 25k of which are on ethanol.

0 issues, except more rapid clutch and tire wear from the additional power. No fuel filter issues, no injector issues, nothing. We had one customer with clogged DIs come in last month. What did he run? Crappy pump gas. Never seen any alcohol. I keep seeing the one article/web site quoted over and over again with those ugly pictures, but in reality it is just an opinion and has absolutely no empirical basis.

The only possible draw back I can imagine on ethanol is wear on the DI pump. But this is one reason ethanol still has 15% gas in it--for lubrication. However we won't know the true failure rates for probably a few more years. But even then, I highly doubt we will see anything. Mazdaspeed folks have been running e85 for years and they run mechanical DI pumps as well. Those are much more finicky, and they are not impacted by ethanol.
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Old 08-01-2014, 11:48 PM   #42
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Quote:
Originally Posted by Slicknick951 View Post
Is anyone running the OFT with a flex fuel kit?

And would it work for a mix of 93 and e85 work with the OFT e85 map?

Sorry for the noob question there is no much info im just trying to wrap my head around the basic ideas.
OFT tunes do not support flex fuel kits however the OFT e85 tune is good for mix between e60 and e90. Few precaution needed due lack of flex fuel sensor see link below
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