P0172 Diagnostic Trouble Code Discussion for March 2012
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 1996 Chevrolet S10 LS 2.2L MIL Lamp on VIN: 1GCCS1948T P0172: Fuel System Rich. S10 with no power,customer says been steadily getting worse.felt like badly plugged cat.did backpressure test 1.5 psi-we pulled pipe off at manifold anyway-same problem.fuel press ok.wondered about timing chain jump with 175k miles but engine starts right up,c... |
March 02, 2012 | |
| 2003 Chevrolet Trailblazer LTZ 4.2L Stall, Strains on acc. VIN: 1GNDS13SX3 P0172: Fuel System Rich (Bank 1). Vehicle starts and idles good. Problem is straining on acceleration, from take of on moderate acc. or at highway speed if trying to gain speed faster or on pulls, even if cruise is on and going up a slight grade.Scanned sys. no codes present. After driving app... |
March 13, 2012 | |
| 2003 Chevrolet Trailblazer LTZ 4.2L Hesitation VIN: 1GNDS13SX3 P0172: Fuel System Rich (Bank 1). Sys. has code PO172B, fuel trim sys, code will reset after app. 10 miles driving from cold start to the 10 miles. Fuel pressure great, convertor appears to be clear, replaced front o2 sensor. Cleared codes, reroadtested same code reset after app. 10 miles. Idl... |
March 13, 2012 | |
| 2001 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12451 P0172: Fuel System Rich (Bank 1). ... seal and rear camshaft plate seal. Vehicle came back with 2 codes - system too lean and oxygen sensor circuit codes. Found oxygen sensor stuck at 200 mv - replaced, cleared and tested at idle with no problems. Car came back with p0172 too rich - checked sp... |
March 22, 2012 | |
| 2001 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12451 P0172: Fuel System Rich (Bank 1). ... seal and rear camshaft plate seal. Vehicle came back with 2 codes - system too lean and oxygen sensor circuit codes. Found oxygen sensor stuck at 200 mv - replaced, cleared and tested at idle with no problems. Car came back with p0172 too rich - checked sp... |
March 23, 2012 |
