OBD 1

By mweld
November 17, 2006 in Ask A GM Technician

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mweld

Posted November 17, 2006

I drive a 94 K Blazer, I recently rebuilt the motor and installed 1996 Vortec R heads with the factory TBI. I now have a slight stumble on cold acceleration until the PCM goes into closed loop. Is there a way to tune this out with a new chip. I have the software to write a new chip I am just not sure what to change in the calibration.

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