I wonder what pressure it’s supposed to be at. My scanner says the fuel pressure sensor is reading well over 500 psi and sometimes drops to like 20 while in the middle of a turn. Thought it was the injectors at first but there’s a tiny bit of fuel behind the butterfly in the throttle body. Im gonna change the rail and tank pressure sensors I guess 🤷🏽♂️
There is a port to check the low pressure. It will be 55 to 60 psi. The high pressure varies at idle bt should be in the 500 psi range. If you pull the high pressure pump, you can check for a bad roller or bad cam lobe. Also it may be leaking internally. The oil will be contaminated with fuel, too. The fuel trims will max negative trying to decrease fuel because of the extra fuel in the pvc.
first of all, thank you.. this video is awesome.. secondly, pretty sure a pump is about to go out in mine. It sputters and reduces fuel intake gradually (not a stall or surging but restricted slowly) and at random times...(some right off the crank, others 50miles away) but when I power down and wait for 5 mins I can make it further... not sure if it's a clog from the filter and the power down stops the draw of fuel and the sediment drops, or the key turn is shocking the motor and freeing it up again but after a power down I drive off. again, sometimes 30 seconds sometimes 30 mins, repeat was thinking it was the low pressure pump since it was gradually cutting off and not stalling but before I buy a pressure gauge just thought I would see what you thought... if you would?? P.S I thought maybe it was a clog of sediment because my fuel tank has a crack in it and I would imagine have debris from the suction
The first thing to check is if the tank is venting properly. The easiest way to do that is to loosen the has cap and drive it to duplicate the problem. If it still does it then that's not it. Also if you have a scanner you can look at the tank pressure or vacuum status. If you think you have bad fuel you could take a sample of fuel from the test port. If your model does not have a test port you can remove the pressure sensor and get it there. Also if you have a scanner you can monitor the high pressure to determine if it drops when the problems occur. Having a crack in the tank is going to be a problem until it gets replaced or repaired.
@@chriskolar thank you so much for the reply... The tank has been cracked for probably 4 years now no problems until three days ago, I just keep it at half instead of filling up .. I will try to replicate it with the gas cap off to eliminate it anyways.. shouldn't be the fuel, run it close to bone dry and been to two gas stations since the problem started.. so I'm thinking mechanical.. Haven't got a scanner yet because I want a good one. The only one I have access to shows hard codes.. Tomorrow my plan is to try the gas cap thing, then buy a pressure gauge and check for any errors.. hopefully I will know more
Thank you Sir for an excellent video! Would a P0442 code indicate failure of this sensor or just that a leak has been detected from this sensor? I'm struggling to narrow this down. I'm about to order a new gas cap and this sensor as well as the fuel injector pressure sensor because the car also threw a P0191 very shortly after throwing the P0442 with the engine shuddering at idle (drive or neutral) and getting a DIC message "Service Stabilitrak - Engine Power is Reduced" on a 2012 Camaro V6. It's intermittent though. Please let me know your thoughts. You seem very knowledgeable indeed.
P0442 is a small leak, check the gasket on the gas cap. If you have a smoke machine you can smoke the evap system, albeit a small leak will be difficult to find. The purge solenoid need to be checked too. Either replace it or swap it with a known good one from a salvage yard. It's a common fail point. The stabilitrak will disable if it is running poorly. It could also be a separate problem like a bad ground, bad battery, bad battery connection. Sorry for the edit I did not read your question throughly.
@@chriskolar I really appreciate the guidance on the P0442. The gasket on the gas cap looks okay but I'm going to replace it anyway. I will buy a new purge solenoid as well and see if either fixes it. Thanks for the plan of attack on the common failure point - now that's what I was looking for! So for my P0191 - interesting you say bad battery - my battery was bad when I bought the car about a year ago, but I reconditioned it using a battery charger and even a local auto parts store tested it today and confirmed it is a good battery. But it wasn't always good, had trouble starting and numerous shops told me it had to be replaced initially not after the reconditioning and it is original, so ~11 years old so would it still cause these weird electrical problems? Also since the P0191 - "Fuel Rail Pressure Sensor 'A' Circuit Range/Performance.” is thrown should I just replace this sensor and see as it got thrown after the car shuddered at idle?
@ninetynate I would wait till you get the battery and the evap code fixed. Check all grounds and connections. Cycle them wiggle the wires clean the terminals. Do them one at a time and test for results. When does the code set? Immediately or after a drive cycle? Measure voltage drops across the battery cables to check the cables for excessive drops. The battery cables can get messed up and cause all kinds of problems. Is the battery properly secured with the original hold down?
Hi@@chriskolar - quick update - I replaced the battery, gas cap (oem), purge solenoid valve (oem). The P0191 went away after disconnecting the battery. The car ran strong for two drive cycles and then started shaking and stumbling and almost stalled out but threw the P0191 code again with the 'Engine Power is Reduced' DIC. Now it takes longer to crank and is in permanent limp mode that won't go away even after restarting. P0191 is here to stay. The battery is secure no voltage drops. I'm reading live data on the OBD2 scanner app. I went to a local mechanic shop and explained this and they said a vacuum leak wouldn't cause P0191 is that accurate? Should I go ahead and replace the fuel rail pressure sensor to rule it out?
@ninetynate before replacing the part you need to check the low pressure and high pressure. This can be done with a scanner. Select the two different fuel pressures and view them on a graph The graph will give you a number for the lowest pressure and highest pressure. If it is out of range then you can start considering replacing parts. The low pressure can be checked easily at the low pressure port on the passenger side rear engine area. With a fuel pressure test gage. The high pressure is viewed on the scanner only.
*I'm getting code p0091 fuel pressure regulator 1 control circuit low voltage. I've replaced the fuel rail pressure sensor and car works good for a couple hours and then code comes back. Please help. Where is the fuel pressure regulator 1 located?*
Hi I want to see if u could help me out I'm getting a code for fuel rail pressure Malfunction pressure too low p0087 for my 2011 Camaro LS could you help me out thanks
Ok, what type of help do you need. Fuel rail pressure low can be from a leaking injector, faulty in tank pump, and faulty high pressure pump. A proper scanner would get you the high and low pressures. You would need a tech2 to go any further, injector duty cycle, testing, resistance, etc.
It's a great idea to release the pressure at the shrader valve test port under the hood. Loosening it slowly with a rag wrapped around it is a option too.
What codes did you get? I just recently got "reduced engine power" on my dashboard and indeed lost major engine power. I got P0087(low pressure) and 89(pressure regulator) causing mis fire on 3 cylinders.
You have to check the low pressure pump first. There is a test port under the hood at the rear of the engine. Low pressure would be a number less than 58 psi.
My code is P 0496. What would anyone recommend checking first. Also. What should the fuel pressure sensor read when on the code reader. When I test it with a code reader I get some numbers ending in v, h20, mpa, what should the normal numbers be running correctly ?
P0496 is purge valve. The pressure sensor goes to the pump control module to give signal so the module can regulate the pump. I am not getting clear info on the other question. A scanner will give the high pressure numbers in live data. This also depends on which scanner you use. A Tech2 can do everything including check the values of the pressure sensor thru the pump module. I have a Autel and it a cheap one, does not do everything.
Do you have a code for it? It measures the fuel pressure from the in tank low pressure pump. The fuel pump module modulates the power to the pump. If the fuel pressure is too low, there can be all kinds of problems.
@@chriskolar 19 codes pull up. I have issues with the Computer. So it's impossible to pinpoint the actual issue. Next step will be the fuel pressure sensor. The good news is it now runs.
The sensor looks the same but the location is a mystery. 13516496 gm part number. The description is off too because it says fuel tank pressure sensor and is obviously not. Have you checked in the same location as my video?
No. It had a bunch of codes related to low fuel pressure. In retrospect, I would rather have just replaced the in tank pump. That is what eventually happened. I put a pump from oriley in. It only lasted 6 months? Two pumps later and I am ready to try a A/C Delco. I do have a video on installing the pump via a access hole under seat.
I think what you are trying to do is release the fuel pressure. There is a small valve in the fuel line before it gets to the high pressure pump. You can release the pressure there. It called a Schrader valve.
Need to check fuel pressure or at least get a diagnostic. You will have pay for that. If you keep driving it and the pressure is off problems will follow, fuel in oil, fouled plugs, damaged catilitic converter the list goes on.
I have a check engine light, I took it to dealership they said it’s fuel pressure sensor, but want to charge $500 so I was wondering if it works the same for camaro ss
Thank you so much for making this video! It helped tremendously 👍
I wonder what pressure it’s supposed to be at. My scanner says the fuel pressure sensor is reading well over 500 psi and sometimes drops to like 20 while in the middle of a turn. Thought it was the injectors at first but there’s a tiny bit of fuel behind the butterfly in the throttle body. Im gonna change the rail and tank pressure sensors I guess 🤷🏽♂️
There is a port to check the low pressure. It will be 55 to 60 psi. The high pressure varies at idle bt should be in the 500 psi range. If you pull the high pressure pump, you can check for a bad roller or bad cam lobe. Also it may be leaking internally. The oil will be contaminated with fuel, too. The fuel trims will max negative trying to decrease fuel because of the extra fuel in the pvc.
first of all, thank you.. this video is awesome..
secondly, pretty sure a pump is about to go out in mine. It sputters and reduces fuel intake gradually (not a stall or surging but restricted slowly) and at random times...(some right off the crank, others 50miles away) but when I power down and wait for 5 mins I can make it further... not sure if it's a clog from the filter and the power down stops the draw of fuel and the sediment drops, or the key turn is shocking the motor and freeing it up again but after a power down I drive off. again, sometimes 30 seconds sometimes 30 mins, repeat
was thinking it was the low pressure pump since it was gradually cutting off and not stalling but before I buy a pressure gauge just thought I would see what you thought... if you would??
P.S I thought maybe it was a clog of sediment because my fuel tank has a crack in it and I would imagine have debris from the suction
The first thing to check is if the tank is venting properly. The easiest way to do that is to loosen the has cap and drive it to duplicate the problem. If it still does it then that's not it. Also if you have a scanner you can look at the tank pressure or vacuum status. If you think you have bad fuel you could take a sample of fuel from the test port. If your model does not have a test port you can remove the pressure sensor and get it there. Also if you have a scanner you can monitor the high pressure to determine if it drops when the problems occur. Having a crack in the tank is going to be a problem until it gets replaced or repaired.
@@chriskolar
thank you so much for the reply... The tank has been cracked for probably 4 years now no problems until three days ago, I just keep it at half instead of filling up .. I will try to replicate it with the gas cap off to eliminate it anyways.. shouldn't be the fuel, run it close to bone dry and been to two gas stations since the problem started.. so I'm thinking mechanical.. Haven't got a scanner yet because I want a good one. The only one I have access to shows hard codes.. Tomorrow my plan is to try the gas cap thing, then buy a pressure gauge and check for any errors.. hopefully I will know more
Thank you Sir for an excellent video! Would a P0442 code indicate failure of this sensor or just that a leak has been detected from this sensor? I'm struggling to narrow this down. I'm about to order a new gas cap and this sensor as well as the fuel injector pressure sensor because the car also threw a P0191 very shortly after throwing the P0442 with the engine shuddering at idle (drive or neutral) and getting a DIC message "Service Stabilitrak - Engine Power is Reduced" on a 2012 Camaro V6. It's intermittent though. Please let me know your thoughts. You seem very knowledgeable indeed.
P0442 is a small leak, check the gasket on the gas cap. If you have a smoke machine you can smoke the evap system, albeit a small leak will be difficult to find. The purge solenoid need to be checked too. Either replace it or swap it with a known good one from a salvage yard. It's a common fail point.
The stabilitrak will disable if it is running poorly. It could also be a separate problem like a bad ground, bad battery, bad battery connection. Sorry for the edit I did not read your question throughly.
@@chriskolar I really appreciate the guidance on the P0442. The gasket on the gas cap looks okay but I'm going to replace it anyway. I will buy a new purge solenoid as well and see if either fixes it. Thanks for the plan of attack on the common failure point - now that's what I was looking for!
So for my P0191 - interesting you say bad battery - my battery was bad when I bought the car about a year ago, but I reconditioned it using a battery charger and even a local auto parts store tested it today and confirmed it is a good battery. But it wasn't always good, had trouble starting and numerous shops told me it had to be replaced initially not after the reconditioning and it is original, so ~11 years old so would it still cause these weird electrical problems?
Also since the P0191 - "Fuel Rail Pressure Sensor 'A' Circuit Range/Performance.” is thrown should I just replace this sensor and see as it got thrown after the car shuddered at idle?
@ninetynate I would wait till you get the battery and the evap code fixed. Check all grounds and connections. Cycle them wiggle the wires clean the terminals. Do them one at a time and test for results. When does the code set? Immediately or after a drive cycle? Measure voltage drops across the battery cables to check the cables for excessive drops. The battery cables can get messed up and cause all kinds of problems. Is the battery properly secured with the original hold down?
Hi@@chriskolar - quick update - I replaced the battery, gas cap (oem), purge solenoid valve (oem). The P0191 went away after disconnecting the battery. The car ran strong for two drive cycles and then started shaking and stumbling and almost stalled out but threw the P0191 code again with the 'Engine Power is Reduced' DIC. Now it takes longer to crank and is in permanent limp mode that won't go away even after restarting. P0191 is here to stay. The battery is secure no voltage drops. I'm reading live data on the OBD2 scanner app. I went to a local mechanic shop and explained this and they said a vacuum leak wouldn't cause P0191 is that accurate? Should I go ahead and replace the fuel rail pressure sensor to rule it out?
@ninetynate before replacing the part you need to check the low pressure and high pressure. This can be done with a scanner. Select the two different fuel pressures and view them on a graph
The graph will give you a number for the lowest pressure and highest pressure. If it is out of range then you can start considering replacing parts. The low pressure can be checked easily at the low pressure port on the passenger side rear engine area. With a fuel pressure test gage. The high pressure is viewed on the scanner only.
Do you think this sensor can also cause a P0452 & P0453 code on a 2016 camaro?
Tank pressure code. You need to check the connections. A scanner with live data would be helpful.
Hi Chris it’s the same for Chevy Camaro for 2017
No the configuration was changed after 2016.
*I'm getting code p0091 fuel pressure regulator 1 control circuit low voltage. I've replaced the fuel rail pressure sensor and car works good for a couple hours and then code comes back. Please help. Where is the fuel pressure regulator 1 located?*
On the high pressure pump. The whole pump needs to be replaced.
Cylinder 5 misfire and fuel pressure regulator code, any ideas ?
I would check the low pressure fuel pump first. A good scanner will have the low and high fuel pressures in engine data.
Hi I want to see if u could help me out I'm getting a code for fuel rail pressure Malfunction pressure too low p0087 for my 2011 Camaro LS could you help me out thanks
Ok, what type of help do you need. Fuel rail pressure low can be from a leaking injector, faulty in tank pump, and faulty high pressure pump. A proper scanner would get you the high and low pressures. You would need a tech2 to go any further, injector duty cycle, testing, resistance, etc.
@@chriskolar ok thanks because I had change the driver side fuel rail and that where the code came up
Do I have to relieve the pressure? Or can I just change it like that
It's a great idea to release the pressure at the shrader valve test port under the hood. Loosening it slowly with a rag wrapped around it is a option too.
did you have long cranking time?
I hsve a code for p0191 is this the same sensor that would fix it ?
It's not a guarantee. You need to check the fuel pressure with a mechanical gage. I still had to change the in tank fuel pump.
What codes did you get? I just recently got "reduced engine power" on my dashboard and indeed lost major engine power. I got P0087(low pressure) and 89(pressure regulator) causing mis fire on 3 cylinders.
Did you find a solution?
Did you find a solution???
You have to check the low pressure pump first. There is a test port under the hood at the rear of the engine. Low pressure would be a number less than 58 psi.
I have the same problem right now, misfire cylinder 1,3,5 and fuel is coming out of muffle i need to find the solution
You need to check for spark on those cylinders first.
My code is P 0496. What would anyone recommend checking first. Also. What should the fuel pressure sensor read when on the code reader. When I test it with a code reader I get some numbers ending in v, h20, mpa, what should the normal numbers be running correctly ?
P0496 is purge valve. The pressure sensor goes to the pump control module to give signal so the module can regulate the pump. I am not getting clear info on the other question. A scanner will give the high pressure numbers in live data. This also depends on which scanner you use. A Tech2 can do everything including check the values of the pressure sensor thru the pump module. I have a Autel and it a cheap one, does not do everything.
Would this component cause the vehicle to not go over 50mph as it does on my 2013 RS?
Do you have a code for it? It measures the fuel pressure from the in tank low pressure pump. The fuel pump module modulates the power to the pump. If the fuel pressure is too low, there can be all kinds of problems.
@@chriskolar 19 codes pull up. I have issues with the Computer. So it's impossible to pinpoint the actual issue. Next step will be the fuel pressure sensor. The good news is it now runs.
HI CHRIS IT'S THE SAME FOR CHEVY CAMARO 2015 V6 ?
The sensor looks the same but the location is a mystery. 13516496 gm part number. The description is off too because it says fuel tank pressure sensor and is obviously not. Have you checked in the same location as my video?
@@chriskolar I FOUND IT THANK YOU !
Do you recall what code the car was throwing?
No. It had a bunch of codes related to low fuel pressure. In retrospect, I would rather have just replaced the in tank pump. That is what eventually happened. I put a pump from oriley in. It only lasted 6 months? Two pumps later and I am ready to try a A/C Delco. I do have a video on installing the pump via a access hole under seat.
What’s the name of the part that turned off your fuel pressure
I think what you are trying to do is release the fuel pressure. There is a small valve in the fuel line before it gets to the high pressure pump. You can release the pressure there. It called a Schrader valve.
P0300 MISS FIRE WHEN I HIT GAS FOR SHOOT INJECTOR COIL EVERY THING IS IN GREAT CONDITION CHECKED BY MACANIC NUT STILL MISS FIRE 2010 CAMARO LT
Need to check fuel pressure or at least get a diagnostic. You will have pay for that. If you keep driving it and the pressure is off problems will follow, fuel in oil, fouled plugs, damaged catilitic converter the list goes on.
I’m getting code P228D?? Help
Use a scanner and check high pressure. Fuel pressure regulator 1 code.
@@chriskolar would it be the fuel pressure sensor
@@IronSharpK9Training it's possible. Without checking the wiring and verifying that I am not sure.
Does this work for 2017 camaro
The part number is different. It does have a fuel pump in the tank to supply the high pressure pump for the injectors.
I have a check engine light, I took it to dealership they said it’s fuel pressure sensor, but want to charge $500 so I was wondering if it works the same for camaro ss
2017
@@Thelifeofelisaayes it is in the same location.
@@Thelifeofelisaa just got this same error about a week ago.