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P0172 Diagnostic Trouble Code Discussion for June 2007

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1997 Mercury Cougar XR-7 4.6L No Start VIN: 1MELM62W1V
P0172: Rich bank 1. This car will not start until the fuel pump does its prime which can last up two minutes. Has good fuel presure as soon as the key is turned on. Car has no spark or niode. Has power to injectors and coils but they are not being grounded. Also no comunication w...
June 11, 2007
1996 Chevrolet K2500 Suburban LS 7.4L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 3GNGK26J5T
P0172: Fuel Trim System Rich (Bank 1). Hello and thank you up front. Have a 96 suburban K2500 with 7.4L code p0327 keeps comming back after few seconds. Performed diagnostics and it recommended KS (knock sensor) module. if code comes back replace VCM. we did so and code still comes back. Both knock...
June 14, 2007
1996 Dodge Ram 1500 Truck 5.9L Hesitation, Surge, MIL Lamp on VIN: 1B7HF16Z7T
P0172: Fuel System Rich (Bank 1). Customer tows a trailer over a mountain pass. SES light comes on only while towning. All my scan data looks normal right now but my freezeframe scan data is off... rpm of 640 and map of 3.5" and load of 13.3 ltft 32.8 and stft 13.3 Fuel pump replaced last ...
June 19, 2007
2000 Ford Explorer XLT 5.0L Hesitation, MIL Lamp on VIN: 1FMZU83P7Y
P0172: bank 1 too rich. Hello all! We have this 2000 Ford Explorer with 5.0 engine that keeps setting code PO340 and has just recently set a pending code PO172 B1 rich, however i believe that is simply due to the cam code and i am not worried about that one yet. Cam Code sets after f...
June 26, 2007
2000 Ford Explorer XLT 5.0L Hesitation, MIL Lamp on VIN: 1FMZU83P7Y
P0172: bank 1 too rich. Hello all! We have this 2000 Ford Explorer with 5.0 engine that keeps setting code PO340 and has just recently set a pending code PO172 B1 rich, however i believe that is simply due to the cam code and i am not worried about that one yet. Cam Code sets after f...
June 27, 2007
1996 Chevrolet K2500 Suburban LS 7.4L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 3GNGK26J5T
P0172: Fuel Trim System Rich (Bank 1). ... running rich. both codes (p0172, p0175) checked fuel pressure regulator and its not leaking. fuel pressure good (54 psi). performed injector balance test found #6 bad (letting out too much fuel, by about 10 psi) so i replaced it- no change. checked evap sy...
June 29, 2007
1997 Mercury Cougar XR-7 4.6L No Start VIN: 1MELM62W1V
P0172: Rich bank 1. This car will not start until the fuel pump does its prime which can last up two minutes. Has good fuel presure as soon as the key is turned on. Car has no spark or niode. Has power to injectors and coils but they are not being grounded. Also no comunication w...
June 11, 2007
1996 Chevrolet K2500 Suburban LS 7.4L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 3GNGK26J5T
P0172: Fuel Trim System Rich (Bank 1). Hello and thank you up front. Have a 96 suburban K2500 with 7.4L code p0327 keeps comming back after few seconds. Performed diagnostics and it recommended KS (knock sensor) module. if code comes back replace VCM. we did so and code still comes back. Both knock...
June 14, 2007
1996 Dodge Ram 1500 Truck 5.9L Hesitation, Surge, MIL Lamp on VIN: 1B7HF16Z7T
P0172: Fuel System Rich (Bank 1). Customer tows a trailer over a mountain pass. SES light comes on only while towning. All my scan data looks normal right now but my freezeframe scan data is off... rpm of 640 and map of 3.5" and load of 13.3 ltft 32.8 and stft 13.3 Fuel pump replaced last ...
June 19, 2007
2000 Ford Explorer XLT 5.0L Hesitation, MIL Lamp on VIN: 1FMZU83P7Y
P0172: bank 1 too rich. Hello all! We have this 2000 Ford Explorer with 5.0 engine that keeps setting code PO340 and has just recently set a pending code PO172 B1 rich, however i believe that is simply due to the cam code and i am not worried about that one yet. Cam Code sets after f...
June 26, 2007
2000 Ford Explorer XLT 5.0L Hesitation, MIL Lamp on VIN: 1FMZU83P7Y
P0172: bank 1 too rich. Hello all! We have this 2000 Ford Explorer with 5.0 engine that keeps setting code PO340 and has just recently set a pending code PO172 B1 rich, however i believe that is simply due to the cam code and i am not worried about that one yet. Cam Code sets after f...
June 27, 2007
1996 Chevrolet K2500 Suburban LS 7.4L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 3GNGK26J5T
P0172: Fuel Trim System Rich (Bank 1). ... running rich. both codes (p0172, p0175) checked fuel pressure regulator and its not leaking. fuel pressure good (54 psi). performed injector balance test found #6 bad (letting out too much fuel, by about 10 psi) so i replaced it- no change. checked evap sy...
June 29, 2007