LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

How can I force open loop

Old 10-14-2004 | 12:39 PM
  #16  
93 RED Z's Avatar
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Joined: Aug 1998
Posts: 33
From: longmont,Colorado,USA
Re: How can I force open loop

Originally Posted by david97gsxr
also, if you have a DVOM, you could find out what the resistance is of the sensor when you first start the car. and then solder in some resistors to make it read that resistance when the car is warmed up....

if you wanted to go that route.
Yea I passed, the tester tested it this AM cold=open loop and with about 30% Alcohol it passed, with 0.37 CO's down from 1.5 to1.6....
I also desided that I will do the resistor thing (thanks for the suggestion) with the water sensor next time so that I don't have to have the test done cold. By the way here in Colorado we already run 10% Alcohol from the pump so another 20% was more than I needed. I've already run out the fuel mixture and everything is back to normal. As close as I ever am to normal.

THANKS FOR THE HELP GUY'S!!!!!!!!!!!
Old 10-14-2004 | 12:56 PM
  #17  
mojorisin's Avatar
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Joined: Sep 2004
Posts: 81
From: norman, ok
Re: How can I force open loop

someone may need to verify, but i think you can put some sort of a resistor in the iat sensor???
Old 10-14-2004 | 01:14 PM
  #18  
93 RED Z's Avatar
Thread Starter
Registered User
 
Joined: Aug 1998
Posts: 33
From: longmont,Colorado,USA
Re: How can I force open loop

Originally Posted by david97gsxr
also, if you have a DVOM, you could find out what the resistance is of the sensor when you first start the car. and then solder in some resistors to make it read that resistance when the car is warmed up....

if you wanted to go that route.
Yea I passed, the tester tested it this AM cold=open loop and with about 30% Alcohol it passed, with 0.37 CO's down from 1.5 to1.6....
I also desided that I will do the resistor thing (thanks for the suggestion) with the water sensor next time so that I don't have to have the test done cold. By the way here in Colorado we already run 10% Alcohol from the pump so another 20% was more than I needed. I've already run out the fuel mixture and everything is back to normal. As close as I ever am to normal.

THANKS FOR THE HELP GUY'S!!!!!!!!!!!
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