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Strange behavior of E20 (EVAP bypass)

Posted: Thu Oct 13, 2005 6:54 am
by Oside Jimc
I recently wired in a dual stage nitrous kit and found an issue with E20 (EVAP bypass) which is being used to drive the 2nd stage. After install we noticed that the output was always active. After checking the "invert output" the relay was no longer energized. This was wired in the same manner as the 1st stage (current sink via ECU to drive relay) but the logical operation of the output is reversed. We have been unable to test further as the solenoid fried from being constantly energized but we'd like to resolve this so we don't have issues when we install a new solenoid.

Thank-You

Posted: Thu Oct 13, 2005 8:57 am
by Hondata
Make sure the input pin is disconnected from the rest of the car. It is best to remove and substitute the pin in the connector.

Can you post the calibration and a datalog?

Posted: Thu Oct 13, 2005 11:00 am
by wdsonny
The car in question happens to be mine. We used E16 for both inputs and E21 for Nitrous 1 and E20 for Nitrous 2. Jim did the wiring so, I know that was done right. Only two wires going to the engine bay from the relays. Basically, it was wired just as the first one was.

Posted: Thu Oct 13, 2005 11:01 am
by wdsonny
Sorry, it all happened so quick, no datalog was able to performed. The calibration is nothing special. Just nitrous 2 enabled and setup accordingly.

Posted: Thu Oct 13, 2005 11:38 am
by Oside Jimc
I cut the wire and spliced it where it comes out of the ECU so it was totally isolated from the wiring of the car.
Sonny:
What kamanger version are you running?

Posted: Thu Oct 13, 2005 11:41 am
by wdsonny
Latest release, .7 or so. Picking up a new solenoid Friday evening and will wire it in. If that one blows out, then I pulling the second relay. Will worry about it next week or so.

Posted: Thu Oct 13, 2005 12:23 pm
by wdsonny
Will have to upload the cal later tonight. Don't have my laptop on me. Basic calibration.

Posted: Thu Oct 13, 2005 5:20 pm
by wdsonny
Here is the cal that I was trying to use. Disabled both Nitrous's for the time being.