Code P0172 shows on the code reader (rich fuel in bank 1) replaced vacuum hoses/fuel filter/sparke plugs. still runs rough/same code of P0172. Any info appreciated.
Chevrolet Q&AAsk Your Question
2000 Chevrolet S10 Question: Code P0172
Answer #1Oakman March 25, 2010, 10:35Master
Does your 2000 Chevrolet S10 have a 4 or 6 cylinder engine?
Answer #2Visitor, June 20, 2010, 20:00
Don't have an answer but my 99 s-10 has same symptoms and I've replaced the same plus plug wires and also got a PCM code p1621 for memory. Let me know if you find an answer, please
Answer #3Visitor, September 11, 2010, 09:09
air filter needs replace
Answer #4lude22r July 22, 2012, 14:38Technician
Manifold absolute pressure sensor and throttle position sensor can also cause this code along with a failing fuel pressure regulator and leaking fuel injectors.