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post #1 of 10 (permalink) Old 05-11-2017, 12:10 AM Thread Starter
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2015 Coyote Tune

My roadster is currently at the tuner to retune the ECU for the non-stock intake and shorty headers. Today I got a call telling me the RWHP is 407 (not bad) but they said they had to resolve the idle stalling issue. I relayed all the information I received from Ford and this forum about the deleted speed signal for the 2015 ECU and the new clutch peddle switches. But they seem to insist that they worked on other 2015 coyotes with the same problem. This speed shop specializes in coyote upgrades and most of the mechanics drive mustang GT's. It will be interesting what happens, how they resolve this. Ill keep the forum updated.

Gary


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post #2 of 10 (permalink) Old 05-11-2017, 12:16 AM
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If you can get 400 rwhp that is good. A buddy in New Jersey just got his Mk4 Coyote tuned he is 378 rwhp and 382 tq ran mid 11's consistently. Car ran smooth idled perfect he is very happy. Let me know if you have any probs I can find out who did his.


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post #3 of 10 (permalink) Old 05-11-2017, 12:33 AM
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My 2015 Coyote crate now has 150 miles on the stock tune. Not exactly a cross country drive, but mostly stop and go driving and enough to tell what's happening. Absolutely zero hint of a stalling issue at idle. Installed per the instructions with the clutch switches. Runs perfectly. I've heard others say the same thing with the Gen 2 Coyote. If your tuner has a stalling issue, it's something they did. Ford fixed it with their tune and the changes made.

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post #4 of 10 (permalink) Old 05-11-2017, 01:46 PM Thread Starter
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I have 300 miles on stock tune with no stalling issues. The shop is only half way through their tune process. They are now working on drivability. So I would expect they should resolve it shortly.

Gary

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post #5 of 10 (permalink) Old 05-18-2017, 12:27 AM Thread Starter
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Picked up car from tuner today. Unfortunately it was stop and go traffic all the way home . I guess I'll have to wait till the weekend to see how good it runs. Initial feel is its much smoother below 2K. As far as the stalling issue their was no issue. It may have happen once during testing tunes but nothing else was needed. And I miss heard the HP number it's 400.7 still I can't complain. Torque looks like about 380.

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post #6 of 10 (permalink) Old 05-18-2017, 01:12 AM
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Looks good, shift at about 6600 and she will be moving.

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post #7 of 10 (permalink) Old 05-18-2017, 05:29 PM
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Originally Posted by grluisi150 View Post
Picked up car from tuner today. Unfortunately it was stop and go traffic all the way home . I guess I'll have to wait till the weekend to see how good it runs. Initial feel is its much smoother below 2K. As far as the stalling issue their was no issue. It may have happen once during testing tunes but nothing else was needed. And I miss heard the HP number it's 400.7 still I can't complain. Torque looks like about 380.

Gary
do you have HP/TQ numbers from before the tune?
I assume those numbers are at the wheels. Curious what the stock setup was putting down?
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post #8 of 10 (permalink) Old 05-19-2017, 03:34 PM Thread Starter
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No, don't have the number before the tune. Yes rear wheel HP.

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post #9 of 10 (permalink) Old 05-19-2017, 06:55 PM
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No, don't have the number before the tune. Yes rear wheel HP.
So did they not do any baseline numbers before working on the tune? or do you just not have them available?
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post #10 of 10 (permalink) Old 05-22-2017, 05:09 PM Thread Starter
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So did they not do any baseline numbers before working on the tune? or do you just not have them available?
I expect they did some base lining, I was not concerned with the delta in improvement.


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