Frequently Asked Question

USDM RP17 and RP18 values:

JDM RP18 values:

JDM Auto to Manual:

• check on the back side in the middle side corner of the ecu. you'll find RP18 there.
• you'll need to lower the value from 2.4k ohms to 1.4k ohms.

USDM Auto to Manual:

• remove RP17 and RP18
• replace RP18 with a jumper wire

USDM Manual to Auto:

• remove jumper at RP18
• add 4.7kOhm +/- 5% at RP18
• add 2.7kOhm +/- 5% at RP17
• add IC16 5050 S or equiv.

-(''need to finish... C91 and C78 ?'')

• OBD1 auto vs manual notice jumper config in lower right along with the transistor config (thanks Katman):
  

• RP Array Before:
  

• RP Array After: