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Thread: Just picked up an ECU off ebay Reply to Thread
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Topic Review (Newest First)
05-18-2009 06:20 PM
yoursolace Correct, all the 93s are turbo, the s and the se!
05-18-2009 01:43 PM
VWSAABVT Pretty sure there aren't any NA us models after 98
05-18-2009 01:24 PM
yoursolace I hope you didn't buy a motronic! (non turbo)
If you did come across a trionic that cheap, kudos!!

Yeah like he said, you can run the 16mhz program on the 16mhz box and the 20mhz box
But a 20mhz program can only run flawlessly on a 20mhz box

Of course you could just flash the program you need to the box to get what you want but you need a bdm/canusb/pe micro to do that.

But any ecu after 1996 should be a 20mhz if I am not mistaken (the chip on the actual ecu ends in a 20, you need to open it up to see it though)
05-11-2009 08:41 AM
8valvegrowl Nope. Some OBDII boxes are 16 Mhz. As PaulH said, 16Mhz software will run on 20 Mhz hardware, but vice versa is unstable. The only real difference in the software is that the sensor I/O's are set to run at a different clock rate.
05-10-2009 01:14 PM
Red DIC
Quote:
Originally Posted by PaulH View Post
i think it was determined that that wasnt exactly the issue, I'm not even really sure what the difference is, other than the part number on the processor ends in 16 on the one and 20 on the other . I do know that its safe to run a 16mhz program on a 20mhz box, but not always the other way around.

Paul
Is there an operating difference on the 16 and 20mhz boxes?
05-10-2009 12:41 PM
PaulH
Quote:
Originally Posted by dan-the-kid View Post
There probably is on ECUProject. Off the top of my head I think its the difference between OBDI(16) and OBDII(20) cars. Although I am not 100% sure myself.
i think it was determined that that wasnt exactly the issue, I'm not even really sure what the difference is, other than the part number on the processor ends in 16 on the one and 20 on the other . I do know that its safe to run a 16mhz program on a 20mhz box, but not always the other way around.

Paul
05-10-2009 06:11 AM
dan-the-kid
Quote:
Originally Posted by Red DIC View Post
There are different ecus? Any writeups/info on this?
There probably is on ECUProject. Off the top of my head I think its the difference between OBDI(16) and OBDII(20) cars. Although I am not 100% sure myself.
05-09-2009 09:57 PM
Red DIC
Quote:
Originally Posted by dan-the-kid View Post
I think he meant 20Mhz v 16Mhz boxes.

There are different ecus? Any writeups/info on this?
05-09-2009 09:18 PM
VWSAABVT Yeah
05-09-2009 07:03 PM
dan-the-kid
Quote:
Originally Posted by Red DIC View Post
16 bit instead of 20?
I think he meant 20Mhz v 16Mhz boxes.
05-08-2009 05:04 PM
VWSAABVT Misfire from hell when it stars around 50 degrees out
05-08-2009 04:25 PM
christian900se What kind of cold start issues are you having?
05-08-2009 03:28 PM
LarryM That's a good price - just hope it erases completely .....
05-08-2009 03:09 PM
Red DIC 16 bit instead of 20?
05-08-2009 01:07 PM
soccerrplyr good for you...
05-08-2009 12:51 PM
VWSAABVT
Just picked up an ECU off ebay

$17.95 to my door
Ill be getting this one reflashed since my 99 is running a 16 bit instead of the 20
hopefully this will get rid of the P1652 and the poor cold start ability.

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