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ECMlink First full throttle attempt.....hesitation under boost

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Jacolu3

Proven Member
638
131
Jan 31, 2015
Lake Grove, New York
1). Any boost, vac, or exhaust leaks?
Boost leak tested 5psi above your max boost with no leaks?
Yes, with my pos compressor I was able to get close to 20psi
2). Verified mechanical timing?
yes
3). Verified base timing?
yes
4). Ignition system
Stock coils, less than 6 months old
new ngk 7s
5). Motor health (Compression Test)
did not check yet but its a new rebuild

6). Performed basic throttle body adjustments?
yes

7). Compression ratio
9.5:1


8). Any known bad sensors or brittle wiring?
none


9). Any DTC/CEL codes?
none


10). Electrical system
good working order

11). Base fuel pressure and injector values
Base Fuel Pressure: 43 psi
Injector Size (cc/min):1120

12). Properly calibrated and configured wideband sensor
Sensor Brand:Innovation
Calibration Date:less than 1000 miles since calibration

13). Type of fuel
Type:93 octane
Percent of Ethanol:

14). Watched ECMlink how-to videos?


So on my first attempt to go full throttle on my fp hta 68 turbo, i get to about 5 psi and the car bogs bad and i get off.
I had a leak on my hks bov (real) and changed the O ring and when i did a boost leak check it was able to Hold close to 20 psi with my small compressor.
Any suggestions
I am a complete newb with link but I am trying to learn as much as I can.
Any help would be greatly appreciated
 

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At just a quick glance it looks as if you are running extremely rich. That can definitely be your issue.

Looks like your injector settings are for 829cc and not 1120cc like you state you have.
 
I should have been a little more specific with my first post. This is a newly built motor with a new turbo so I was just breaking it in. I did have a tuner setup a base map so I can drive around town to break it in. So everything was setup timing wise.
And as for the injectors, when he originally set the dead time for 1120 cc injectors the car didn't like it so he had to make an adjustment to make it run correctly. When I'm cruising the afr is right around 14:1 but when I get into boost it does get very rich.
 
Your stoichiometric ratio is set for E85 at 9.8 and you say your running 93 octane. If you switch it to 14.7 (for gasoline if that's what your running) you'll see about a -20% drop in global fuel. That might be a majority of your issue - you might have to re-adjust your deadtime.
 
Your stoichiometric ratio is set for E85 at 9.8 and you say your running 93 octane. If you switch it to 14.7 (for gasoline if that's what your running) you'll see about a -20% drop in global fuel. That might be a majority of your issue - you might have to re-adjust your deadtime.

When I pull it up on my laptop it reads 14.7 for the stoichiometric ratio
 
When I open your log and go to "ECU Config (log)" and then go to the "fuel" tab and then go to "calculate," it shows 9.8:1. I believe these are the settings from your log. Check it out and let me know if I am wrong.
 
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