2006 Buick Rendezvous

2006 BUICK RENDEZVOUS
55,654 MILES • 6 CYL • 2WD • AUTOMATIC
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TITO3470
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  • 1 POST
I have a 2006 Buick Rendezvous and my check engine light came on. Its been on for a while. I took it to advance auto part and they did a check engine light they told me that my Sensor A was bad. I replace the sensor A, now it was on I took it back they told me I had a code P0455 and P0405. I replace the Fuel Cap and now took it back I only have the P0405, I bought something called Sea Foam Motor Treatment and I still have the check engine light on. Any Advice? Please Help!!
Apr 25, 2011 at 7:03 PM
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PROTECH1980
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P0405 is a egr position low voltage code, would need to be further diagnosed using a factory scan tool such as a tech 2 to determine actual egr position, and if it is an egr valve itself, or the circuit. The 455 is a gross leak in the evap system, most commonly the gas cap not sealing or was left off at one point. The sea foam will not correct your cel problem.
Apr 25, 2011 at 7:40 PM
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