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Re: !!!!5.3 Vortec Swap Started!!!!
OK, I need some more help. I installed some universal 4 wire Bosch Oxygen sensors. the problem is I guessed at the wiring(attached). Well I actually used the diagram I got from LS1tech.com. The bosch 02 wires are: two white, one black and one grey.
However since then, my truck is running like crap. It seams to be in LIMP mode. The tranny acts like it is slipping in first and second on the top end of the RPM range right before it shifts. And I get a mild popping from the exhaust now.
Has anyone installed these 02 sensors? How did you connect them? the engine is a 2007 classic silverado 5.3 with the 4L60E tranny.
Now prior to the 02 sensors the tranny was strong and shifted fine, just since then has it gotten this way.
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