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 Automobile engine ECU, Immo, Air bag chip tunning
 Problems to program 27C512 with GQ-4X

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Becoacamba Posted - 06/20/2009 : 09:12:42
Hi Friends

I'm trying to rewrite an EPROM M27C512 original ecu marrelli an IAQ 1G7SS.77 and I have previously erased with UV light for 20 min. Here attached an image with the error that gives me the GQ-4X. That may be happening here. Thanks for your help.

Image Insert:

172.93 KB
5   L A T E S T    R E P L I E S    (Newest First)
angmar Posted - 03/13/2011 : 16:36:41
Have little power uv light , or little exposition time.
kaleteam Posted - 02/02/2010 : 09:48:51
Originally posted by Becoacamba

ok thks ready.

By what Eprom can replace the M27C512 PLCC32 (OTP) please.
Becoacamba Posted - 09/21/2009 : 13:13:59
ok thks ready.
ZLM Posted - 06/21/2009 : 06:41:45
It seems the chip is not erased completely.

Do a blank check to confirm the chip is blank.

Yes. The SST27SF512 is read compatible with 27C512.
Becoacamba Posted - 06/20/2009 : 13:28:56
I have too a similar problem with eprom 27c256 of chevrolet corsa 1.6 8v. I could do it once, but now I clear it with UV light for 20 min and now will not let me write give me this error.

Image Insert:

179.7 KB

Nota: the eeprom SST27SF512 is compatible with the 27c512?


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