P28 ECU Blown Transistor

M@dds · Post by **M@dds** » Tue Sep 18, 2012 6:57 pm

Hi all

I bought a P28 for my lude and on inspection noticed this

Has anyone got any ideas as to what this controls? and as to wether this means my P28 is silicone toast?

judderod · Post by **judderod** » Tue Sep 18, 2012 7:03 pm

photobucket is currently taking a jobby...

Screwing up almost all of my ebay listings, and your pic above... Grr

Have you tested the ECU to see if it works?

M@dds · Post by **M@dds** » Tue Sep 18, 2012 7:08 pm

Hi bud yeah i had some trouble trying to get a image code to post this, it wasent letting me select it. no I havent buddy I got to get a harness yet and not to sure I want to be plugging it into my lude yet

Supercharged 無限MUGEN BB1 Profile · Post by **nucleustylzlude** » Tue Sep 18, 2012 8:36 pm

Looks fried, It can be replaced but the PCB board below looks fubar'd to. Is that number next to it 030? Could probably find out.

A common thing is people using these ECU's with 4th gen peak and hold injectors and not installing the resistor box - it fries the driver circuit of the board - that could be part of it???

Post by **Gayno** » Tue Sep 18, 2012 8:43 pm

If the writing on it is still legible, you could find the correct component and then it could probably be replaced.

The board underneath just looks like scorched from the burn, probably no real damage.

secla · Post by **secla** » Tue Sep 18, 2012 9:02 pm

h-tune repair ecus i believe. but i guess you could probably buy another one once postage and everything is paid for

toadster · Post by **toadster** » Tue Sep 18, 2012 11:04 pm

LO

Looks like Q31 ( normal transistor part number on PCBS , i lay them out you know

) , like Gayno stated if you can read the component number on the device you may be in luck , then remove and check the tracking underneath to see if its all in-tact

Good luck with it matey

I quess it's not possible to find the circuit diagram for the board anywhere

Cheers

Toadster

Post by **4thgenphil** » Tue Sep 18, 2012 11:05 pm

the same looking one went on my auto ecu, it still ran just fine

judderod · Post by **judderod** » Wed Sep 19, 2012 9:41 am

What Phil said... I'd give it a try and see what happens. Might be to do with something that isn't used on your setup.

Post by **Lude-dude** » Wed Sep 19, 2012 9:44 am

that part of the board may not do anything

p28 was used for different cars, with or without vtec, manual & auto

so some parts of the board are not used

still get a new transistor soldered in like toad said the traces might be ok