P14 To P13

How to convert an OBD1 P14 into a OBD1 P13

by Andrew Congdon

I've now suceeded in converting a P14 to P13. Here's what I added to a P14-Q00 to make it electrically equivalent to a P13-N01 and it seems to work fine with a stock P13 EPROM. P0A and P0C seem to use the same board which is different to the P12-14.

Add:

• D4 ?
• C43 1u35v tant
• IC11 SI5050S (or is that SK?)
• IC12 SI5050S
• NF3
• NF4
• C77 22p
• C42 1032p (revised: C42 103Z)
• C78 22p
• R56 820R
• R55 820R
• Q35E K329 (AIL 4L)
• R59 10k
• DM1 S233
• R121 22k
• R115 10k
• IC4 74HC365
• J5 0R
• Q29 D1780
• RP12 0R
• RP16 0R
• RP17 0R

Remove:

• C41 3u3 16V tant
• Q32 D1780 (revised: Q30 D1780)
• RP11 4k7
• RP12 1k5
• RP15 0R
• RP17 4k7
• RP18 4k7

-- speed_of_bokchoy - 28 Apr 2005 (Revisions in brackets, please verify)