ls1 in 67 camaro wont run with o2 sensor hooked up
01-24-2010, 12:23 PM
#1
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ls1 in 67 camaro wont run with o2 sensor hooked up I swapped a 2000 ls1 out of a camaro ss into my 67 camaro, I have S&P open headers on it right now with the factory o2 sensors. The engine will fire/run as long as the o2 sensors are disconnected. As soon as I hook them up, it will not fire (still cranks). If I unhook them, it runs again (for 5 seconds, VATS is still enabled) Has anyone seen this before? all other sensors are hooked up. I used a techrods engine harness. It has a 4l60 if that matters.
01-24-2010, 02:20 PM
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Still working on it ...this is what I have learned in the last hour.
In the haynes manual for 2000 camaro the o2 sensors should be black, pink, tan, and brown. this matches my cars aftermarket harness.
On the sensors I have the wires are
A-Tan
B-Purple
C-Brown
D-Brown
In the haynes manual for 2000 camaro the o2 sensors should be black, pink, tan, and brown. this matches my cars aftermarket harness.
On the sensors I have the wires are
A-Tan
B-Purple
C-Brown
D-Brown
01-24-2010, 03:29 PM
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well now I'm more confused.. the 4 wires to the sensor are IGN power, ground, ecm hi, ecm low.
each wire is routed to its proper pin
the grounds are good to block and battery
I have 12 v at the positive leads when ign is on
The signal wires have continuity to their respective pin
they do not have continuity to ground
the harness appears fine....thoughts?
Bad PCM?
each wire is routed to its proper pin
the grounds are good to block and battery
I have 12 v at the positive leads when ign is on
The signal wires have continuity to their respective pin
they do not have continuity to ground
the harness appears fine....thoughts?
Bad PCM?
01-24-2010, 03:35 PM
#6
TECH Regular
First things first, you need to get the VATS turned off and then troubleshoot if you still have problems. It doesn't make sense that the o2 sensors are causing it to not start unless there is a short in one of the sensors that is bring down other sensor inputs.
