EBC clicking
#1
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EBC clicking
Recently my GM EBC started clicking at about 5-10 Hz when I turn on the ignition. It is definitely the EBC. This is before cranking the engine and is not going on while the engine is running. It is strange since it did not do this before, and only started recently after some minor tuning changes to the fuel table and boost duty cycle table.
I looked around but did not find the answer. It is not a big deal but I would like to get rid of it if I can. Anyone know what the deal is?
Thanks
I looked around but did not find the answer. It is not a big deal but I would like to get rid of it if I can. Anyone know what the deal is?
Thanks
#3
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could be 2 things:
1. You lost your TPS calibration so the MS thinks your throttle is open when it's not and is activating the EBC according to the corresponding line in your Boost Duty Targets table.
and/or
2. Your settings in Boost Duty Targets are wrong. You should have a bottom row that is all zeros. Say 20% tps 0, 0, 0, 0, 0, 0. Or if you want some EBC help at 20% throttle make that bottom row 10% 0, 0, 0, 0, 0, 0.
First check your TPS calibration though. Load the TPS gauge in MT and see if it reads 0 when your foot is off the gas. If not, recalibrate. Tools > Calibrate TPS
1. You lost your TPS calibration so the MS thinks your throttle is open when it's not and is activating the EBC according to the corresponding line in your Boost Duty Targets table.
and/or
2. Your settings in Boost Duty Targets are wrong. You should have a bottom row that is all zeros. Say 20% tps 0, 0, 0, 0, 0, 0. Or if you want some EBC help at 20% throttle make that bottom row 10% 0, 0, 0, 0, 0, 0.
First check your TPS calibration though. Load the TPS gauge in MT and see if it reads 0 when your foot is off the gas. If not, recalibrate. Tools > Calibrate TPS
#7
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#9
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I run it at the same settings as everyone else: 19.5Hz. IIRC, when i tired others like 13Hz, it simply changed the scale as to where it operates. 13psi might be at 30%DC at 19.5Hz and 60% DC at 13Hz...don't remember.
Benefit...you can one of these guys: Item # P18, Air Exhaust Mufflers on Air, Inc.
but really, the cure for clicking is setting up the table better...specifically your tps values. During cranking or power on, mine is off. if i blip the throttle you can hear it clicking.
Benefit...you can one of these guys: Item # P18, Air Exhaust Mufflers on Air, Inc.
but really, the cure for clicking is setting up the table better...specifically your tps values. During cranking or power on, mine is off. if i blip the throttle you can hear it clicking.
#13
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could be 2 things:
1. You lost your TPS calibration so the MS thinks your throttle is open when it's not and is activating the EBC according to the corresponding line in your Boost Duty Targets table.
and/or
2. Your settings in Boost Duty Targets are wrong. You should have a bottom row that is all zeros. Say 20% tps 0, 0, 0, 0, 0, 0. Or if you want some EBC help at 20% throttle make that bottom row 10% 0, 0, 0, 0, 0, 0.
First check your TPS calibration though. Load the TPS gauge in MT and see if it reads 0 when your foot is off the gas. If not, recalibrate. Tools > Calibrate TPS
1. You lost your TPS calibration so the MS thinks your throttle is open when it's not and is activating the EBC according to the corresponding line in your Boost Duty Targets table.
and/or
2. Your settings in Boost Duty Targets are wrong. You should have a bottom row that is all zeros. Say 20% tps 0, 0, 0, 0, 0, 0. Or if you want some EBC help at 20% throttle make that bottom row 10% 0, 0, 0, 0, 0, 0.
First check your TPS calibration though. Load the TPS gauge in MT and see if it reads 0 when your foot is off the gas. If not, recalibrate. Tools > Calibrate TPS
1. I checked the throttle calibration, even recalibrated it. Still the same clicking.
2. The bottom row of my boost duty target was already set to zero.
I have a gradual ramp-up from 0 to the full boost cycles at 80%+ to help with part throttle boost smoothness. But that is another topic.
Any other ideas? image of the boost duty table and my msq is attached.
#17
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So I went outside at lunch and checked things out.
1. I checked the throttle calibration, even recalibrated it. Still the same clicking.
2. The bottom row of my boost duty target was already set to zero.
I have a gradual ramp-up from 0 to the full boost cycles at 80%+ to help with part throttle boost smoothness. But that is another topic.
Any other ideas? image of the boost duty table and my msq is attached.
1. I checked the throttle calibration, even recalibrated it. Still the same clicking.
2. The bottom row of my boost duty target was already set to zero.
I have a gradual ramp-up from 0 to the full boost cycles at 80%+ to help with part throttle boost smoothness. But that is another topic.
Any other ideas? image of the boost duty table and my msq is attached.
#18
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^ OK I changed it from 2% to 20% and I think that did the trick. The fix seems obvious now in retrospect. I am not sure how it changed to 2% in the first place, must have been an inadvertent typo on my part.
The clicking problem was somewhat intermittent, but I cannot duplicate the error as of yet. It is strange... When I turned on the ignition to power the MS it was not clicking. Then when I changed the column value from 2% to 20% and burned it to the MS, the clicking started up again. Without starting the car I turned off the ignition and turned it back on; the clicking was gone again. I started and ran the car, turned it off, turned the ignition on and off again a few times, no clicking. So I THINK it is fixed.
Thanks Paul
Chad FWIW all I did to create my table was to scale the values by row. 100% and 80% are untouched from the tuned values. For 60% throttle I multiplied the entire row by 0.8. For 40% I multiplied by 0.6. For 25% by 0.4. That makes the boost onset a little less snappy at part throttle and thus makes it easier to modulate; It transitions from the tamer wastegate behavior to the more aggressive EBC behavior based on throttle position. It's nice for rolling on the throttle while in mid corner.
The clicking problem was somewhat intermittent, but I cannot duplicate the error as of yet. It is strange... When I turned on the ignition to power the MS it was not clicking. Then when I changed the column value from 2% to 20% and burned it to the MS, the clicking started up again. Without starting the car I turned off the ignition and turned it back on; the clicking was gone again. I started and ran the car, turned it off, turned the ignition on and off again a few times, no clicking. So I THINK it is fixed.
Thanks Paul
Chad FWIW all I did to create my table was to scale the values by row. 100% and 80% are untouched from the tuned values. For 60% throttle I multiplied the entire row by 0.8. For 40% I multiplied by 0.6. For 25% by 0.4. That makes the boost onset a little less snappy at part throttle and thus makes it easier to modulate; It transitions from the tamer wastegate behavior to the more aggressive EBC behavior based on throttle position. It's nice for rolling on the throttle while in mid corner.
#20
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Chad FWIW all I did to create my table was to scale the values by row. 100% and 80% are untouched from the tuned values. For 60% throttle I multiplied the entire row by 0.8. For 40% I multiplied by 0.6. For 25% by 0.4. That makes the boost onset a little less snappy at part throttle and thus makes it easier to modulate; It transitions from the tamer wastegate behavior to the more aggressive EBC behavior based on throttle position. It's nice for rolling on the throttle while in mid corner.