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Author Topic: Tech Support HELP! New 30-1220 box in my TA... weird parameter behavior...  (Read 315 times)
Goldfinger911
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« on: September 08, 2009, 10:04:42 PM »
I just finished the install of a 30-1220 box in my 2002 F-body.
I followed all the directions exactly, I updated the firmware to the 1.21 as instructed, and loaded the Startup Calibration.
After uploading it, the IACV started making a pulsing/ticking noise. I looked at the "Setup" template and noticed that a lot of the parameters were surging... or fluctuating... and the car wasnt even started.

A lot of them... the TPS was bouncing between 0% and 4%... the MAP sensor was boucing betwen 95% and 99%... the Idle position was bouncing... several unrelated parameters bouncing. They were all fluctuating with the same "rhythm" as the clicking of the IACV. I then unplugged the IACV and the ticking stopped... however the parameters kept on bouncing.

Anyone ever had this happen before? I didnt want to start it... incase this is something major.

Thanks in advance.

-J
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scottie1134
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« Reply #1 on: September 09, 2009, 08:42:40 AM »
You can try this.
* 20090502z.V1.21.cal (14.59 KB - downloaded 38 times.)
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Peace,
Scottie
Motiva Performance Engineering
2420 Comanche Rd. NE Suite H-3
(505)883-8388
Albuquerque, NM
http://www.motivamotorsports.com/
We got your Dyno tuning needs covered
terryb
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« Reply #2 on: March 18, 2010, 10:05:37 PM »
did you check the crank sensor, i have seen this where the ems thinks that the car is running when it is not, parameters will go crazy, tach will jump, if these are how your symtoms are
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