well, i received this ecu in a partial payment for a socketed ecu, broke it open to socket it and find this:

upon further checking, it looks factory, this solder job is incredible, just like all the other factory parts, and uses the factory resistors and jumpers. was just wondering if anyone knew anything about this? also, its a 94 automatic P28

MORE pix:

 

I know a [pejorative] that lives up the road from the shop.... and he's got one

 

Yup, there's quite a few out there like this.

 

I see them all of the time.

 

so what is the purpose? or what does it come out of?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mtber &raquo;</TD></TR><TR><TD CLASS="quote">I see them all of the time. </TD></TR></TABLE>

I bet you do but you run through ecu's like I run through jimmy hat's.

I've seen these before on Pgmfi.org. but never in person.

 

maybe a UK or Euro ECU? IDK.. I have seen and chipped a few .

 

The one pictured above is USDM. They did this when they used the ECU in a different vehicle than the programmed processor was intended for. Also when there was a change done to the firmware after the processor had already been programmed. As you can see here, this processor was originally intended to be used in a P05, but it went into a P28, so they had to use the external program access (AKA chipping) to make the firmware match the hardware.

 

also, what does q31 go to? ive had a bunch of ecu's with these burnt up...

 

PCS. These are commonly burnt when someone plugs the IAT sensor into the PCS plug.