(2009 Pontiac G8) About a year ago they found what they called a major problem, so far they have replaced the solenoid valve, rear evap canister, and left axle seal and also the fuel cap. Diagnostic Information and Procedures - DTC P0451-P0454 - For 2009 Pontiac G8. Lets make that Weekend job less Painful! Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles. In our experience the P0521 engine code appears more often on Chevrolet, Dodge, GMC, Mercedes Benz, Pontiac, and Cadillac, but applies to any make/model. This procedure is found in the G8 Service Manual. Come along with Eric O. and have a look at this 2008 Pontiac Torrent 3.4 with a "P0455 Large / Gross EVAP Leak." If there is anything that you would like to add, please feel free to leave a comment below. P0441 is one of the more common OBD-II trouble codes with the Pontiac G8.It’s a generic powertrain code, which means regardless of what auto manufacturer built the vehicle, it’ll have the same meaning. 2009 Hyundai Accent a ton of MIL codes p0451 p0496 p0328 p0132 2009 Hyundai Accent GS - 110,000 mi - 5spd manual Have had codes p0451 and p0496 for the past 10k miles, have replaced gas cap with OEM and FTPS and PCSV and CCV. The OBD2 Code Information Be Applicable For Pontiac: 2010 Pontiac G8,2009 Pontiac G8,2009 Pontiac G6 ,2009 Pontiac G3,2008 Pontiac G8,2007 Pontiac Solstice SD-290 Concept,2007 Pontiac Solstice GXP,2007 Pontiac G6 GXP Show Car,2006 Pontiac Torrent,2006 Pontiac Solstice,2006 Pontiac Montana SV6,2006 Pontiac GTO,2006 Pontiac G6 GTP Coupe,2006 Pontiac G6 GTP Convertible,2005 Pontiac … P0157 PONTIAC Description The Powertrain Control Module supplies a voltage of about 450 mV between the HO2S high and low signal circuits.The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean. It's under warranty so I'll take it in, but I'm curious as to … This procedure is found in the G8 Service Manual. Like all OBD-II trouble codes, P0451 has the same meaning for all vehicles. Auto Service Costs Find the prices for normal auto service activities including alignment, tuneup, timing belt replacement and more. Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles. The code technically stands for: It means that your Pontiac G8 ‘s EVAP system has a pressure sensor that is malfunctioning in some way. Fuel mileage may suffer a bit, and certainly the service engine soon light will come one. Have you replaced any parts? 2008-2009 Pontiac G8 GT. The service bulletin applies to all above vehicles built prior to February 1, 2011 with the following engines: – Aluminum Block V8 Engine with Active Fuel Management (AFM) (RPOs L9H, L94, LZ1, L99, LC9, LH6, LH9, L76, L92, LFA (Hybrid)) 2008 Pontiac G8 | G8 Service Manual | Engine | Document ID: 2136445 DTC P0451, P0452, P0453, or P0454 Diagnostic Instructions DTC Descriptors DTC P0451:€Fuel Tank Pressure (FTP) Sensor Performance DTC P0452:€Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage DTC P0453:€Fuel Tank Pressure (FTP) Sensor Circuit High Voltage DTC P0454:€Fuel Tank Pressure (FTP) Sensor Intermittent The sensor output voltage to the ECM increases as pressure increases. You would be looking to see if it has been damaged in any way. P0451 is a diagnostic trouble code (DTC) for "Evaporative Emission Control System Pressure Sensor Range/Performance". Here are some of the most common causes of P0451 in general. The EGR system on a vehicle is responsible for recirculating exhaust gasses in order to lower the vehicles emissions output. Pontiac G5 P0451 Possible Solution : The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. The easiest place to start diagnosing P0451 is to take a look at the fuel cap. The FTP sensor is a transducer that varies resistance according to changes in the fuel tank pressure. The auto repair labor rates vary widely across the country, and even within the same city. Evaporative Emission System Low Purge Flow. 2008 Pontiac G8 | G8 Service Manual | Engine | Document ID: 2071650 DTC P0450 or P0451 Diagnostic Instructions DTC Descriptors DTC€P0450:€Fuel Tank Pressure (FTP) Sensor Circuit DTC€P0451:€Fuel Tank Pressure (FTP) Sensor Performance Typical Scan Tool Data Circuit/System Description Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! They are typically a challenge to get to. .....Fuel tank Pressure regulator.Check out My Amazon Auto Accessories Store! P0441 indicates that there is an issue with the Evaporative Emissions System. Now a year later and the code is popping up again and they are telling me thesmoke test is negative. P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad fuel cap…. The FTP sensor is a transducer that varies resistance according to changes in the fuel tank pressure. Fuel caps have a rubber seal around them where they make contact with the fuel receiver. The OBD2 Code Information Be Applicable For Pontiac: 2010 Pontiac G8,2009 Pontiac G8,2009 Pontiac G6 ,2009 Pontiac G3,2008 Pontiac G8,2007 Pontiac Solstice SD-290 Concept,2007 Pontiac Solstice GXP,2007 Pontiac G6 GXP Show Car,2006 Pontiac Torrent,2006 Pontiac Solstice,2006 Pontiac Montana SV6,2006 Pontiac GTO,2006 Pontiac G6 GTP Coupe,2006 Pontiac G6 GTP Convertible,2005 Pontiac … To get the proper access, the fuel tank must be removed. The Fuel Tank Pressure (FTP) sensor is only used for EVAP system diagnostics. Pay particular attention to where it plugs into the EVAP pressure sensor. © G8Only.com 2021 Built with Storefront & WooCommerce.. My Account; Search. P0451 PONTIAC Meaning The Evaporative Emission system is used to store fuel vapors in order to reduce the amount of fuel vapors into the atmosphere.The Fuel Tank Pressure (FTP) sensor is only used for EVAP system diagnostics. P0401 is a common OBDII trouble code that’ll pop up in the Pontiac G8.It has to do with the emissions system and stands for: P0401: EGR → Insufficient Flow. G8Forum.com - Pontiac G8 Discussion Forum Since 2007 A forum community dedicated to Pontiac G8 owners and enthusiasts. Re: Trouble starting error code is p0451 P0451 - Evaporative Emission Control System Sensor This sensor is used to test that there are no leaks in the EVAP system. PO452 Fix! The FTP sensor is a transducer that varies resistance according to changes in the fuel tank pressure. P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad fuel cap. Reason for P0451 and find the solution for the code P0451 , we'll give to how to fix P0451 trouble code problem. Leave a comment below or tell us if the information above help you fix the code. This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to all 1996-newer vehicles (Ford, Honda, Mazda, Mercedes, VW, etc. The auto repair labor rates vary widely across the country, and even within the same city. We’ll cover those directly below. Cost of diagnosing the P0458 PONTIAC code Labor: 1.0 The cost of diagnosing the P0458 PONTIAC code is 1.0 hour of labor. It is located in the section: Engine / Engine Controls and Fuel - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L / Diagnostic Information and Procedures. Since a missing, bad, or under-tightened fuel cap can make your G8 throw this code it’s a great place to start. This means that regardless of which make or model of vehicle, the code will mean the same thing (G8 or not). Help us improve AutoCodes.com. Error Code P0451 is very straightforward error code. We’ll cover those directly below. When the check engine light comes Pontiac G6 P0451 code on the first you should check is the gas cap. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. You may also notice the slight smell of gas. This means that regardless of which make or model of vehicle, the code will mean the same thing (G8 or not). You’ll want to test to see if it is within the specs that Pontiac requires before getting a new one. The next place to look for what could be causing P0451 in your G8 is the EVAP system lines and hoses. Pay attention to anywhere that they connect to something else, go near the exhaust, or touch anything that could slowly cut through them. If it is, a new gas cap may be exactly what you need to fix the problem. Posted and Edit by AutoCodes.com 08-16-2016, 5 Most Common Reasons for Check Engine Light, Fuel Tank Pressure (FTP) Sensor harness is open or shorted, Fuel Tank Pressure (FTP) Sensor circuit poor electrical connection, Engine Light ON (or Service Engine Soon Warning Light). Here’s a fantastic video on how to do just that: If everything else checks out, I would consider doing a smoke test before checking the fuel tank pressure relief valve. Most auto repairs shops charge between $75 and $150 per hour. Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge. 2008 Pontiac G8 | G8 Service Manual | Engine | Document ID: 2136445 DTC P0451, P0452, P0453, or P0454 Diagnostic Instructions DTC Descriptors DTC P0451:€Fuel Tank Pressure (FTP) Sensor Performance DTC P0452:€Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage DTC P0453:€Fuel Tank Pressure (FTP) Sensor Circuit High Voltage DTC P0454:€Fuel Tank Pressure (FTP) Sensor Intermittent After explaining the situation with the gas caps, the SM dug through the vehicle history and found the Gas Cap problem. Make sure that this seal is not dry rotted or missing. Permanent DTC Overview Permanent DTC Overview Ford Motor Company February 2017 Version 1.0 Printed Copies Uncontrolled Page | 1 Permanent Diagnostic Trouble Codes (DTCs) Typically, P0451 will not affect the way that your G8 runs or drives. P0451 Evaporative Emission Control System Pressure Sensor My 2009 G8GT now has this code persistently. 2008 Pontiac G8 | G8 Service Manual | Engine | Document ID: 2071650 DTC P0450 or P0451 Diagnostic Instructions DTC Descriptors DTC€P0450:€Fuel Tank Pressure (FTP) Sensor Circuit DTC€P0451:€Fuel Tank Pressure (FTP) Sensor Performance Typical Scan Tool Data Circuit/System Description Continue driving and see if the check engine light turns off. Search for: Search P0455 PONTIAC Meaning This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. Here’s a link to a great video on how to track down a leak if you don’t have a smoke machine. It means that your Pontiac G8‘s EVAP system has a pressure sensor that is malfunctioning in some way. Then loose, broken, or damaged wires and electrical connectors must be repaired.Also, check the lines for any cracks or holes. Well this fix was pretty straight forward on this old 2006 Pontiac G6. The code technically stands for: P0157 PONTIAC Description The Powertrain Control Module supplies a voltage of about 450 mV between the HO2S high and low signal circuits.The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean. It is located in the section: Engine / Engine Controls and Fuel - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L / Diagnostic Information and Procedures. After getting the dreaded CHL code P0445, I decided to take the car to the dealer for a new cap. P0451 Evaporative Emission Control System Pressure Sensor My 2009 G8GT now has this code persistently. Diagnostic Information and Procedures - DTC P0451-P0454 - For 2009 Pontiac G8. What is the cost to diagnose the P0521 PONTIAC code Labor: 1.0 The cost to diagnose the P0521 PONTIAC code is 1.0 hour of labor. There can be other causes as well. Checking the wiring harness would be follow the same principal. 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Pontiac Torrent P0451: EVAP Pressure Sensor → Range/Performance, Pontiac Sunfire P0451: EVAP Pressure Sensor → Range/Performance, Chevy Impala: Brake Lights Stuck On → Diagnosis. Most auto repairs shops charge between $75 and $150 per hour. If everything seems to be okay after a visual inspection, then simply replacing the sensor can resolve the problem.If evaporative pressure sensor looks good, then simply unplug all related controllers, and retest individual circuits using the DVOM. 2008-2009 Pontiac G8 Pontiac Factory Service Bulletin OBDII Code P0521. P0451 PONTIAC Description The Evaporative Emission (EVAP) system is used to store fuel vapors in order to reduce the amount of fuel vapors into the atmosphere. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may vary depending on the model. Search for: Search If the plug is loose or looks damaged, it may be time to replace that part of the harness. The good news is that if that’s the only code that your G8 has, it shouldn’t really be a breakdown risk. That being said, the fuel cap is often misdiagnosed as the cause of P0451. What does that mean? P0451 can be a challenging trouble code to track down. Engine Oil Pressure Sensor/Switch Range/PerformanceThis diagnostic trouble code (DTC) is a generic OBD-II powertrain code. Now would be a great time to check the fuel pressure sensor signal. P0451 Evaporative Emission Control System Pressure Sensor Range/Performance indicates a change of pressure outside the manufacturer specifications. © G8Only.com 2021 Built with Storefront & WooCommerce.. My Account; Search. It has a code P0449 Evaprative Emissions (EVAP) vent solenoid control circuit. ... P0451 PONTIAC Fuel Tank Pressure Sensor Performance; The EVAP control system pressure sensor is not used to control the engine system. Pontiac G8 P0455 Definition P0455 is a universal OBDII trouble code. There can be other causes as well. The cost to diagnose the P0451 code is 1.0 hour of labor. OBD2 Code P0451 Pontiac definition: The EVAP control system pressure sensor detects pressure in the purge line. P0451 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page. OBD-II Code P0451 is defined as a Evaporative Control System Pressure Sensor Range/Performance The Code P0451 indicates that the Evaporative Pressure Sensor is indicating pressure change values that are not within specification, during the EVAP Monitor test and/or the operation of … Good luck! If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition. P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad fuel cap. What are the symptoms on your vehicle for the P0451 Pontiac code? This is usually a result of a failed sensor, but considering your starting trouble, you most likely have a leak in your EVAP system which is allowing extra air into your intake. The OBD2 Code Information Be Applicable For Pontiac: 2010 Pontiac G8,2009 Pontiac G8,2009 Pontiac G6 ,2009 Pontiac G3,2008 Pontiac G8,2007 Pontiac Solstice SD-290 Concept,2007 Pontiac Solstice GXP,2007 Pontiac G6 GXP Show Car,2006 Pontiac Torrent,2006 Pontiac Solstice,2006 Pontiac Montana SV6,2006 Pontiac GTO,2006 Pontiac G6 GTP Coupe,2006 Pontiac G6 GTP Convertible,2005 Pontiac …