PO108 code after switching to 1.7

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Oct 1, 2004 | 01:20 PM

#31

Imprezd

Evolving Member

Joined: Feb 2004

Posts: 184

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Quote:

Originally Posted by Ad-Rok

Hi Pete, Nathan Jermaine and all,

This means that disconecting from the ECU is a CRUCIAL step in upgrading software then, and I highly recommend you publish this change to the instruction manual you attached with the 1.7 software on your web site. This deserves to be at the top of this forum as well...

So will the utec power up with no connection to the ECU, or do we have to use that 9v battery-supply thing to get enough juice to do the reflash?

I may drive up tomorrow and come see you guys to give me a quick hand with this if need be.

Thanks,
Adam

Adam,
The proper procedure to flash any type of ecu would be by some form of a bench flasher i.e. the 9v battery adapter we supply you. This will supply you with the safest stable procedure as possible. It is not crucial for you to do it this way, which is why we offer in car flashing capability. If you choose to leave the utec in the car connected to the stock ecu it is very likely you are going to have a CEL with the way the baro signal is held during the reflashing.

If you are in a pinch, you can reset the stock ecu by disconnecting the battery terminals for about 10 minutes. This will give you the same effect as disconnecting the stock ecu at the plug connectors.

Jermaine~
www.turboxs.com
301-977-4727

Last edited by Imprezd; Oct 1, 2004 at 01:24 PM.

Oct 1, 2004 | 01:39 PM

#32

Ad-Rok

Evolving Member

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Joined: Oct 2003

Posts: 153

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From: DC

Quote:

Originally Posted by Imprezd

Thanks for the quick reply Jermaine. OK, so to clarify, can I:

1) leave the UTEC in if i power it down with the key in and watch for the red LED to go off as stated in the manual, then turn on in FLASH mode, run the flash, and power down watching for the LED off again, finally switching FLASH mode off?

2) leave the UTEC in if i reset stock ecu by disconnecting battery for 10 minutes and follow procedure in #1 afterwards?

3) just take it out and use the 9v battery no matter what?

Thanks in advance,
-Adam

Oct 1, 2004 | 02:18 PM

#33

MalibuJack

EvoM Guru

iTrader: (5)

Joined: Feb 2003

Posts: 10,572

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From: Royse City, TX

If you have an OBD-II scantool you can reset it that way afterward too.. I generally use the 9v battery method but I don't remove it from the car (I just unplug the wiring harness if I have the time or am in the mood)