Mechanics

CODE READER

1987 Oldsmobile Ciera

Engine Performance problem
1987 Oldsmobile Ciera 6 cyl Two Wheel Drive Automatic

i have a code reader, it is compatible with my car but im only gettin one code which is the " system pass" code. Why wouldnt it be giving me codes? What can I do to fix this?
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Hi there,

If there are no set fault codes in the system this sis what you will get, to test the code gathering ability of the ECU and the reader. Induce a code, say unplug the TPI and start the engine and try to rev it, this should set a code to read.

Mark (mhpautos)
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Mhpautos
May 18, 2010.
What is a TPI?

TPI. Throttle position indicator, that is the sensor at the throttle body, I used that as an example as it is easily access to unplug to see if the reader will read any code.

Mark (mhpautos)

Mhpautos
May 19, 2010.

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