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Eleventeen Eleventeen is offline
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Posts: 206
Join Date: Apr 2009
Car: 2007 335i
Default Help with fault code on new install - 07-21-2021, 08:53 PM

Well, I installed my brand new JB4, but the car wouldn't start (B58 Supra). I went back to recheck all of my connections and realized I plugged the JB4 male TMAP connector into the JB4 female TMAP connector, instead of the actual sensor. Sometimes I wonder how I'm still alive. Anyway, the car only makes about 1psi of boost on map 3, and switching to map 0 for stock boost still only achieves about 1psi of boost. After removing the JB4, everything is fine. Do you think I fried the JB4, or could there be something else I'm missing? If I damaged the board, which chip do I need to replace? Firmware is JB4_B48_B58_17_T5.hex. Log attached.

Attached Files
File Type: csv 210721_2252.csv (9.5 KB, 4 views)

2021 Supra A91 Edition

Last edited by Eleventeen; 07-21-2021 at 09:00 PM..
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
Posts: 33,483
Join Date: Jan 2008
Default 07-22-2021, 08:05 AM

If you need individual tech support you'll have to email in as I don't check the forum often. But clear the codes, install it properly, and see.

Burger Motorsports
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