Question about Pontiac Montana SV6
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Posted on Jan 02, 2017
Appears to be the code for the camshaft position sensor, or cam sensor circuit. Around $35-45.00 for the part at an auto parts store. Have the part replaced. And take it from there. Might be a good thing to replace the spark plugs and wires too.
Posted on Apr 02, 2010
SOURCE: Getting the following codes from a 1997 Pontiac Grand Am....... PO121 TPS / Pedal Position Sensor A CKT Range / Perf Also, PO341 Camshaft Position Sensor A - Bank 1 CKT Range/Perf. Any thoughts on the
po121 means that there is a problem with the throttle position sensor ( tps). or in the wiring or connector, most likely its the tps that is bad. first remove connection from tps, heres how to test. use an ohms meter and hook a lead to top or bottom terminal of tps. use other probe on center terminal of tps. move throttle plate slowly, if the needle on meter does not move at a smooth pace, then tps is bad. good-luck!!
Posted on Oct 07, 2010
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