Right I just got a JDM P30 chipping kit.

I bridge J1, Solder the Three little things in (C49, C50, C92)

Then I Put in the Zif socket. Tested the ECU (yup forgot to solder the 74HC373 chip in) and got a solid CEL light on the Speedo.

So.. I soldered in the 74HC373 chip and tried it again. SOLID check light again!

Left over I have one resistor and am not sure where it goes. I am following this guide..

<U>http://web.archive.org/web/20051224083544/www.pgmfi.org/twiki/bin/view/Library/ChippingJDMP30</U>

Because I kept getting a CEL light I removed J1, C49, C50 and C92. Left in the 74HC373 chip as it would have been a PITA to remove. Also pulled the Chip that I burnt!

Once removed, the CEL light is still on. Car is in limp mode!

Any Idea why I kept getting the CEL light when I connected the bits up?

Please help, Its not my ECU!!

 

1. Did the ecu previously have a 28 pin eprom chip installed from the factory ?
2. If not, when you removed j1, you still have a solid cel (limp mode) ?
If so, your ecu is damaged.

 

No EEPROM installed when I started. Now I remove J1 and the CEL light is still there!

I still need to remove the 74HC373 chip. Would this throw a code?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 12sec14 &raquo;</TD></TR><TR><TD CLASS="quote">No EEPROM installed when I started. Now I remove J1 and the CEL light is still there!

I still need to remove the 74HC373 chip. Would this throw a code?</TD></TR></TABLE>

Sounds like you damaged your ecu some how.