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P0172 Diagnostic Trouble Code Discussion for July 2011

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1998 Jaguar XJ8 4.0L Excessive Emissions VIN: SAJHX1246W
P0172: System too rich Bank 1. This vehicle was driven in running poorly with strong smelling exhaust, Restricted Performance displayed & Check Engine light on w/codes P-0172, P-0174 & P-0151. STFT's pretty much maxed out @ 19.5 in each direction in line with fault codes. I unplugge...
July 05, 2011
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S84
P0172: Fuel System Rich (Bank 1). This vehicle came in for SES light no driving concerns. Unit was not getting up to temp, replaced thermostat to get temp upto spec, t-stat was visibly stuck open. Tested and replaced secondary air pump shutoff valve-ok. Now the big problem we are having is tha...
July 07, 2011
2007 Honda Civic Si 2.0L MIL Lamp on VIN: 2HGFG21597
P0172: Fuel System Too Rich (Bank 1). ... on with code p0172- too rich. Freeze data is: load 35.68%, ect 73c, STFT -20.31, LTFT -20.31, MAP 38KPa engine speed 909rpm, vehicle speed 0kph, timing [...], IAT 43c, TPS 14.11%, At idle map 0.86v, maf 1.14v, tp 0.65v, AFFB (STFT) 0.77, AFFB (LTFT) 0.80 F...
July 18, 2011
2001 Chrysler LHS 3.5L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1FP21GH123
P0172: Fuel System Rich (Bank 1). ... customer. I pulled all the coils and plugs to inspect and dry the boots and coils and checked plugs. Used dielectric grease and cured P0304. Removed a mouse nest from air box, but P0172 resets. Replaced bank 1 sensor 1 due to a slow switching issue, but it...
July 26, 2011
2001 Dodge Durango 4.7L No Start, Poor Idle Quality, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1B4HS28NXY
P0172: Fuel System Rich (Bank 1). Engine will stall at idle. When key is on and engine off, engine will flood immeaditley. Tachometer will bounce around rapidly every time car stalls.
July 27, 2011
2000 Pontiac Grand Am SE 2.4L Poor Idle Quality VIN: 1G2NF52T9Y
P0172: Fuel System Rich. I have this Grand Am that has poor idle when hot, sft are high 20 & o2 reading is high .9v , I tried swapping map sensor, checked temp sensors ok , fuel pressure about 35 psi bleed down drops about 5-10 right away then holds, no misfires shown on solus. I ...
July 29, 2011
1998 Jaguar XJ8 4.0L Excessive Emissions VIN: SAJHX1246W
P0172: System too rich Bank 1. This vehicle was driven in running poorly with strong smelling exhaust, Restricted Performance displayed & Check Engine light on w/codes P-0172, P-0174 & P-0151. STFT's pretty much maxed out @ 19.5 in each direction in line with fault codes. I unplugge...
July 05, 2011
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S84
P0172: Fuel System Rich (Bank 1). This vehicle came in for SES light no driving concerns. Unit was not getting up to temp, replaced thermostat to get temp upto spec, t-stat was visibly stuck open. Tested and replaced secondary air pump shutoff valve-ok. Now the big problem we are having is tha...
July 07, 2011
2007 Honda Civic Si 2.0L MIL Lamp on VIN: 2HGFG21597
P0172: Fuel System Too Rich (Bank 1). ... on with code p0172- too rich. Freeze data is: load 35.68%, ect 73c, STFT -20.31, LTFT -20.31, MAP 38KPa engine speed 909rpm, vehicle speed 0kph, timing [...], IAT 43c, TPS 14.11%, At idle map 0.86v, maf 1.14v, tp 0.65v, AFFB (STFT) 0.77, AFFB (LTFT) 0.80 F...
July 18, 2011
2001 Chrysler LHS 3.5L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1FP21GH123
P0172: Fuel System Rich (Bank 1). ... customer. I pulled all the coils and plugs to inspect and dry the boots and coils and checked plugs. Used dielectric grease and cured P0304. Removed a mouse nest from air box, but P0172 resets. Replaced bank 1 sensor 1 due to a slow switching issue, but it...
July 26, 2011
2001 Dodge Durango 4.7L No Start, Poor Idle Quality, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1B4HS28NXY
P0172: Fuel System Rich (Bank 1). Engine will stall at idle. When key is on and engine off, engine will flood immeaditley. Tachometer will bounce around rapidly every time car stalls.
July 27, 2011
2000 Pontiac Grand Am SE 2.4L Poor Idle Quality VIN: 1G2NF52T9Y
P0172: Fuel System Rich. I have this Grand Am that has poor idle when hot, sft are high 20 & o2 reading is high .9v , I tried swapping map sensor, checked temp sensors ok , fuel pressure about 35 psi bleed down drops about 5-10 right away then holds, no misfires shown on solus. I ...
July 29, 2011