ECU with no ROM adapter

GTOSVX · #1 11-25-2007, 07:58 PM

I am trying to install the ECUtune stage1 v5 chip into my 92 svx, but there is no ROM adapter on the board for it to plug into. Has any one else found this problem with their ECU? I do not want to have to try to solder it in place, seems a bit above my level of electronics experience.

Any one have a suggestion?

SubaSteevo · #2 11-25-2007, 08:49 PM

Quote:

Originally Posted by GTOSVX

I am trying to install the ECUtune stage1 v5 chip into my 92 svx, but there is no ROM adapter on the board for it to plug into. Has any one else found this problem with their ECU? I do not want to have to try to solder it in place, seems a bit above my level of electronics experience.

Any one have a suggestion?

Flip it over

Crazy_pilot · #3 11-25-2007, 09:13 PM

Installation instructions from Ecutune.com

http://ecutune.com/SVX-Stage-1-Instructions.pdf

TomsSVX · #4 11-25-2007, 09:50 PM

Never seen that before... Usually all of them have them

And no its not upside down, there is no socket soldered in

Tom

YourConfused · #5 11-25-2007, 10:28 PM

Being a fluke ecu, you could still solder it in. You can do it!

GTOSVX · #6 11-25-2007, 10:55 PM

rather than solder the board directly in to the motherboard, maybe I should look for a socket adapter and solder it in in case there issues later.
Anybdy know of good source for spare ECU for trade??

GTOSVX · #7 11-26-2007, 12:40 PM

Trying to find a replacement ECU that has the ROM socket installed;
As I start searching there seems to be some changes in the first year. those built 06/91 or before; those built only in 07/91; and those built in or after 08/91.
My vin number ends in 103641, with a date of mfg 07/91.
Can anyone confirm that if I buy a replacement listed as for 07/91 that they will have the RM socket??

Or should I buy a newer version of the ECU?

GTOSVX · #8 11-26-2007, 12:42 PM

By the way, ECU prices for the ECU run from $75 to $350 at car-part.com

TomsSVX · #9 11-26-2007, 03:36 PM

You can use any ECU from 92-95 but the 93+ will throw a CEL for an EGR temp sensor. You need to find another 92 ECU and like I said, never seen one without a socket before and I would assume the new one you buy will have a socket

Tom

b3lha · #10 11-26-2007, 03:44 PM

Quote:

Originally Posted by TomsSVX

You can use any ECU from 92-95 but the 93+ will throw a CEL for an EGR temp sensor. You need to find another 92 ECU and like I said, never seen one without a socket before and I would assume the new one you buy will have a socket

Tom

AFAIK Fitting LAN's eprom should convert it to a 92 ECU, so shouldn't be any problem with the sensor.

GTOSVX · #11 11-26-2007, 04:21 PM

thanks for the help; will pickup a 92 ECU tommorow from salvage yard; thanks to Michael

for the extra work to help me find one at decent price.

TomsSVX · #12 11-26-2007, 04:24 PM

Quote:

Originally Posted by b3lha

AFAIK Fitting LAN's eprom should convert it to a 92 ECU, so shouldn't be any problem with the sensor.

Not correct. LAN's chip only modifies the fuel timing and knock correction as far as I know. He does not access any other parameters such as the EGR temp sensor. i install a 94 ECU into my car with a ECUtune chip and I still got the CEL. i installed the 92 ECu with the same chip and got rid of it. There is no wiring or a sensor in the circuit on the 92's

Tom

immortal_suby · #13 11-26-2007, 07:07 PM

it sounds like you have quite a rare ECU there! my wife had a 6/91 build with a rom socket soldered in. Very interesting to hear they used something different for one month of production. I'm also surprised this is the first we've ever heard of it. Don't lose it.

nextse7en · #14 11-26-2007, 07:18 PM

Well sir, if things don't go as planned at the salvage yard, I'll ship you a spare for 30 bucks.

-Patrick