trance42 Posted August 9, 2006 Report Share Posted August 9, 2006 Shorted wire coming from the fan relay,It runs down teh red + wire all the way to the battery.shorted power wiresShorted knock sensor wires.Could it have started in the relay? Link to comment Share on other sites More sharing options...
turbor850 Posted August 10, 2006 Report Share Posted August 10, 2006 guess you found a replacement harness ? Link to comment Share on other sites More sharing options...
prasamin Posted August 10, 2006 Report Share Posted August 10, 2006 jesus christ! Link to comment Share on other sites More sharing options...
trance42 Posted August 10, 2006 Author Report Share Posted August 10, 2006 guess you found a replacement harness ?Yep, Found one at Erie. Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted August 10, 2006 Report Share Posted August 10, 2006 whoooaa Link to comment Share on other sites More sharing options...
trance42 Posted August 10, 2006 Author Report Share Posted August 10, 2006 Can you tell if an ECU is fried buy looking at the board?Off subject Question...Is the BSR chip "socketed " Link to comment Share on other sites More sharing options...
crazykn Posted August 11, 2006 Report Share Posted August 11, 2006 Truthfully it may not be possible to tell if the ECU fried... until you fix up your car first and try it.The ECU has a fuse that would blow out if there was short... lets hope it did its job. by the way, thanks for sharing the pics, i've always wanted to open up the ECU!If there was catastrophic ECU frying... the blue electrolytic capacitor would probably swell up, leak or burst. Link to comment Share on other sites More sharing options...
Uncle Boost Posted August 11, 2006 Report Share Posted August 11, 2006 speaking of ECU chips....Are these chips readible with an EEPROM reader? or are the somehow Protected from reading? Link to comment Share on other sites More sharing options...
trance42 Posted August 11, 2006 Author Report Share Posted August 11, 2006 Truthfully it may not be possible to tell if the ECU fried... until you fix up your car first and try it.The ECU has a fuse that would blow out if there was short... lets hope it did its job. by the way, thanks for sharing the pics, i've always wanted to open up the ECU!If there was catastrophic ECU frying... the blue electrolytic capacitor would probably swell up, leak or burst.You are welcome. My fingers are crossed that the ECU is ok. The new harness should arive tuesday and be on the car buy wednesday. My biggest worry is that what ever caused this harness to short will cause the new one to short. I checked the fan relay with a volt meter. I got a resistance of .1 ohms. Power(watts) = volts^2 / ohms. Im not an electrician but to me that = 1440 watts. and bothe wires running to the relay were badly shorted. The inside of the relay looked to be fine. Do you know of any typical causes of something like this?speaking of ECU chips....Are these chips readible with an EEPROM reader? or are the somehow Protected from reading?I have no idea. A guy on this board whos S/N is Zac might be able to help you with your question. Link to comment Share on other sites More sharing options...
the underlørd Posted August 11, 2006 Report Share Posted August 11, 2006 speaking of ECU chips....Are these chips readible with an EEPROM reader? or are the somehow Protected from reading? i don't think anyone's managed to get it to work no, but i could be wrong. Link to comment Share on other sites More sharing options...
trance42 Posted August 12, 2006 Author Report Share Posted August 12, 2006 Can someone tell me the s/n of the guy that had his 500 hp 850 project pinned for a while?He took out the auto tranny parts of the harness and id liek to ask him a few questions. Link to comment Share on other sites More sharing options...
Uncle Boost Posted August 21, 2006 Report Share Posted August 21, 2006 i don't think anyone's managed to get it to work no, but i could be wrong.Ok....Who has a Chip info or Bad ECU they could share? Stock and Re-map type chips from an 95-97 855R? 93-94 855T.Are ALL the chips in our ECUs Socketed or Hard wired (Soldered) in?I can see the 28 pin BSR Eprom on Trance42's post....Its Socketed and it looks like it comes with its own Socket???Or is that Volvos OEM socket?The E8588 BIN is their part number I assume...Looking at his photos there is no way to tell if its an EPROM or EEPROM (Erasable) chip....and not knowing what Type of chip like 27c256 or 27c512 etc without pullin the sticker up.I have an EEPROM reader, and Eraser I've had for years. Time to put it to use. Just curious if it can be done. PM me. Look on your Chips and read the Part number of the chip if you can.....Like 27C256 27c512 or something similar. Some chips can be reprogrammed over and over if it has a small Glass Window for UV erasing....the "Program Once " or EPROMs can only be done once and dont have a window....Better yet if you have a Digital camera, Take a Macro or close up of an ECU chip and send me the pictures...KQQLDEVICE@aol.com. This would be good info to know incase you ever have to Re-Flash your chip if something goes wrong with your ECU ( Which could be why some ecu's fail because it may have lost its program in the EEPROM)...You can have the BINary file on a disk or CD for safe keeping.Oh yeah.. I did catch this by Razor:Bottom Line: Oliver needs to fix it and fast.Slater: Oliver told me that the socket is neccessary because of either to protect their maps from being duplicated and/or to talk properly to the board, the socket is neccessary to "decryp" the EEPROM. Without the socket, the EEPROM will not work.NOW, he could be completely sh!tting me. It does make business sense to use a dcryp socket to protect from such an easy thing as duplicating EEPROM data which does indeed cost just a few bucks. I suspect Oliver has a point with the socket because if one could simply duplicate maps with an EEPROM programmer, I think dirt cheap, do-it-yourself remapping it would be much more rampant that I have seen.I have reached the limit of my knowledge on the ECU mapping.Not sure how a socket can encrypt an eprom unless it has its own circuit in the socket or a Diode to limit the serial data flow or something....That sort of answers my question.... Link to comment Share on other sites More sharing options...
BlackT5 Posted August 21, 2006 Report Share Posted August 21, 2006 Ok....Who has a Chip info or Bad ECU they could share? Stock and Re-map type chips from an 95-97 855R? 93-94 855T.Are ALL the chips in our ECUs Socketed or Hard wired (Soldered) in?I can see the 28 pin BSR Eprom on Trance42's post....Its Socketed and it looks like it comes with its own Socket???Or is that Volvos OEM socket?The E8588 BIN is their part number I assume...Looking at his photos there is no way to tell if its an EPROM or EEPROM (Erasable) chip....and not knowing what Type of chip like 27c256 or 27c512 etc without pullin the sticker up.I have an EEPROM reader, and Eraser I've had for years. Time to put it to use. Just curious if it can be done. PM me. Look on your Chips and read the Part number of the chip if you can.....Like 27C256 27c512 or something similar. Some chips can be reprogrammed over and over if it has a small Glass Window for UV erasing....the "Program Once " or EPROMs can only be done once and dont have a window....Better yet if you have a Digital camera, Take a Macro or close up of an ECU chip and send me the pictures...KQQLDEVICE@aol.com. This would be good info to know incase you ever have to Re-Flash your chip if something goes wrong with your ECU ( Which could be why some ecu's fail because it may have lost its program in the EEPROM)...You can have the BINary file on a disk or CD for safe keeping.Oh yeah.. I did catch this by Razor:Not sure how a socket can encrypt an eprom unless it has its own circuit in the socket or a Diode to limit the serial data flow or something....That sort of answers my question....I have the stock .bin file from my ECU. (CDN spec 98 S70 T5 Manual) I will eamil it to you.The ECUs don't come socketed.There is a big thread on the ECU files/programming.. i'll dig it up for you.. http://volvospeed.com/vs_forum/index.php?s...c=18585&hl=Here's mine after the Upsolute programming. They decided to re-solder the chip in instead of socketing. My ECU uses the 32 pin chip. Link to comment Share on other sites More sharing options...
Uncle Boost Posted August 22, 2006 Report Share Posted August 22, 2006 Yo BlackT5....Good looking out son.Super Thread!!!Slater still looking for People with Skills?I got the reader/writer. Link to comment Share on other sites More sharing options...
trance42 Posted August 26, 2006 Author Report Share Posted August 26, 2006 Turns out that my ecu is fried.. I turned the board over and took the plastic cover off. What do you know, burnt circuitry.Does anyone think the bsr chip is still good? Can anyone test it for me with an EPROM reader?Tim Link to comment Share on other sites More sharing options...
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