Jumping J1

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02-10-2004, 06:49 PM

nonvtec

3.0 BAR

Thread Starter

Join Date: Aug 2003

Posts: 1,950

Jumping J1

When chipping an OBD1 Ecu, it says to jump J1, (connect it) What should I use to do that? Thanks.

02-10-2004, 06:57 PM

OnYx

3.0 BAR

Join Date: Nov 2004

Posts: 5,101

Re:Jumping J1

one of the cutoff legs from one of the resistors/caps

02-10-2004, 07:08 PM

tranceminister

3.0 BAR

Join Date: Mar 2003

Posts: 5,282

Re:Jumping J1

yeah just a spare piece of leg from a resistor etc. will di just fine. makes for an easy snip if you need to switch back to stock too

02-10-2004, 11:57 PM

Y-49crx

0.5 BAR

Join Date: Apr 2003

Posts: 131

Re:Jumping J1

an obd0 ecu there is no need for this correct? I read the writeup at ecucontrol.com and think you just unsolder the old chip and solder in a socket right? im about to chip my ecu and need some clarification. (sorry if im a highjacker)

-Joe

02-11-2004, 12:15 AM

TurboEF9

3.0 BAR

Join Date: Apr 2003

Posts: 2,260

Re:Jumping J1

OBD0 ECUs capable of having external EEPROM sockets on the native PCB are already setup to do so.

So, yes, just unsolder the chip, and solder in the socket. "J1" is already shorted.