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|09-06-2010, 07:24 AM||#1|
Join Date: Sep 2009
Location: Mansfield, TX
O2 Sensor Upgrade from LT1 to LT4 - WIRING
We have installed an LT4 in our '93 LT1 Convertible and our tuner has recommended that we upgrade the O2 Sensors to the 4-wire heated LT4 Sensors, where the LT1 had a 1-wire sensor.
Has anyone done this or have the knowledge to assist us in where to tie the extra wires in? ...the ground is easy but there are two additional wires that go to the PCM which I doubt our earlier PCM even has an input need for them. email me and I can provide a link for the diagram of the LT4 sensors with extra wires circled
Any assistance would be greatly appreciated
|09-06-2010, 05:59 PM||#2|
Join Date: Mar 2010
Location: New Jersey
Do you not trust your tuner?
Heated O2 sensors are a good idea typically. If you have a stock exhaust and place them in stock locations, you really shouldn't have to.
If he's having a problem getting open loop, then yeah you need them. You hired the guy, trust him.
Custom fuel injectors for any application, marine, ATV, etc
Tuning stock and aftermarket ECUs
Fuel Pumps----Areomotive and Fuel Labs
Lines Fittings ---- Red Horse, Fragola, XRP
MARCELLA CUSTOM INTAKES
ECU-----Fast, Holley, and Motorvation
Intakes Manifolds for LSX, SBC, SBF, BBC
Carb to FI conversion kits
If it's fuel related and you don't see it, CALL, we can make it.
|10-04-2010, 09:42 PM||#3|
Join Date: Feb 2010
Location: tremont, pa
I'm not allowed to post a link yet, so I put it in a PM
Last edited by rcsrich; 10-04-2010 at 10:30 PM.
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