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Old 06-23-2006, 10:09 AM   #14
Element Tuning
Former Vendor
 
Member#: 54918
Join Date: Feb 2004
Chapter/Region: MAIC
Location: Gaithersburg, MD
Vehicle:
673 WHP Element
Tuning Pro Comp Engine

Default

jblaine,

You can run the crank trigger test with the car running. This is the correct signal for the WRX (2 vs 3 for the cam signal on the STI).

The fan issue is interesting. Watch the AFR in a data log when the car cuts out. The standard refresh rate of the main screen is only 1 hz so monitoring the voltage there will not help nor the AFR. When there is a sudden demand for current such as when the radiator fans come on or the AC, a sudden drop in voltage occurs. The amount depends on the state of the electrical system in a particular car. If you see that the car leans out under this condition then increasing the "injector response curve" will help. Monitor this map to see what the voltage is dropping to. Increase the value at the lower voltage site to increase fuel delivery which will compensate for the drop in voltage. What voltage is seen at the ecu (reported by Hydra) once the fans are running and AC if you use it?

Usually cars with standard flywheels can handle this but I've tuned some cars with extremely light flywheels and it needs to be spot on.

Thanks,
Phil
http://www.elementtuning.com
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