weres the fuel pressure sensor?
#2
in the 24th and a half...
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http://www.rockauto.com/catalog/x,ca...,parttype,6376
heres the part i didn't see at the pump. anyone have a parts fiche with pics?
heres the part i didn't see at the pump. anyone have a parts fiche with pics?
#5
in the 24th and a half...
I don't see the part you are talking about on the TSX fuel system in the service manual. What is it you are trying to do? Airtex mainly sells pumps and regulators...
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diagnose a poor start condition, I found an rsx thread that led me to this sensor. Its a basic bosch system thing, which i thought we used.
its almost like starting a carb car takes a couple rotaions. I know its not spark related so leaves only one thing.
its almost like starting a carb car takes a couple rotaions. I know its not spark related so leaves only one thing.
#7
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http://www.rockauto.com/catalog/x,ca...,parttype,6376
heres the part i didn't see at the pump. anyone have a parts fiche with pics?
heres the part i didn't see at the pump. anyone have a parts fiche with pics?
Trouble shooting hard starting - begin by checking fuel pressure at the injector rail when the engine is cranking. You might have a weak fuel pump or any number of other things. There's probably a fuel pump relay which runs the pump for a second when you turn the ignition on. Then the pump shuts off until you crank the engine. If this isn't happening ... well, you need to run the complete FSM diagnostic tree for hard starting.
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Trouble shooting hard starting - begin by checking fuel pressure at the injector rail when the engine is cranking. You might have a weak fuel pump or any number of other things. There's probably a fuel pump relay which runs the pump for a second when you turn the ignition on. Then the pump shuts off until you crank the engine. If this isn't happening ... well, you need to run the complete FSM diagnostic tree for hard starting.[/quote] Could also be caused a bad fuel press reg.
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i beleive the vapor sensor is a seperate sensor then what I am looking for.
something has to be telling the pump to increase or decrease the pressure, I assume thats the pcm, but the pcm cannot just make that up it has to have a reference somewere.
heres the vent pressure for the cap. ACURA TSX VENT PRESSURE SENSOR
Part# 37940-SNA-A01
another. ACURA TSX PRESSURE SENSOR ASSY.
Part# 80450-SFE-003
This caught my eye, the car uses a map sensor so why does it have this sensor as well?
ACURA TSX AIR FUEL RATIO SENSOR
Part# 36531-R40-A01
ACURA TSX MAP SENSOR ASSY.
Part# 37830-RNA-A01
thanks guys this probable wouldn;t bother most people but its driving me nuts.
something has to be telling the pump to increase or decrease the pressure, I assume thats the pcm, but the pcm cannot just make that up it has to have a reference somewere.
heres the vent pressure for the cap. ACURA TSX VENT PRESSURE SENSOR
Part# 37940-SNA-A01
another. ACURA TSX PRESSURE SENSOR ASSY.
Part# 80450-SFE-003
This caught my eye, the car uses a map sensor so why does it have this sensor as well?
ACURA TSX AIR FUEL RATIO SENSOR
Part# 36531-R40-A01
ACURA TSX MAP SENSOR ASSY.
Part# 37830-RNA-A01
thanks guys this probable wouldn;t bother most people but its driving me nuts.
#10
in the 24th and a half...
Actually, most systems use dumb measures to regulate fuel pressure in dual line systems. Restrictors or valves limit returned fuel to maintain pressure in delivered fuel lines...the system returns excess fuel to the tank/pump.
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Is yours taking longer to start than it used to, or has it always had a slightly longer than normal start time?
#12
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There is no "fuel pressure sensor" in the TSX. It's a single line "returnless" system where the regulator is mounted on the fuel pump in the tank. PCM commands the pump on, regulator regulates max pressure by bleeding fuel directly back into the tank. If you have measured that the fuel pressure is low at cold start, it's most likely either a bad/or dislodged regulator (I've seen them pop out on Accords) or a bad check valve in the pump itself.
There is a "fuel tank pressure sensor" which is used exclusively for EVAP emissions monitoring.
There is a "fuel tank pressure sensor" which is used exclusively for EVAP emissions monitoring.
#13
in the 24th and a half...
You sure it's single line, the system diagram seems to indicate otherwise, but I'm not an expert on reading this thing.
As a side note, the part "conig" initially referred to seems to be the "Fuel Tank Pressure (FTP) Sensor", part of the "Evaporative Emission (EVAP) Control System".
As a side note, the part "conig" initially referred to seems to be the "Fuel Tank Pressure (FTP) Sensor", part of the "Evaporative Emission (EVAP) Control System".
#14
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You sure it's single line, the system diagram seems to indicate otherwise, but I'm not an expert on reading this thing.
As a side note, the part "conig" initially referred to seems to be the "Fuel Tank Pressure (FTP) Sensor", part of the "Evaporative Emission (EVAP) Control System".
As a side note, the part "conig" initially referred to seems to be the "Fuel Tank Pressure (FTP) Sensor", part of the "Evaporative Emission (EVAP) Control System".
#15
in the 24th and a half...
Got it, so the EVAP canister is the retangular (with cylinders) box located in front of the fuel tank...I'm used to the old school underhood purge canister. It seems clear the "regulator" we talk about above is part of the EVAP system then.
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ok getting off track. I understand return and returnless. If this was return it would have been adjusted how I want by now. I'm experienced and even build small racing motors (drag quads, dirtbikes).
I still have the same wonder, what is the pcm using to make the determination? bleading off seems better. O2 sensors? OBDII turns them off wide open seems risky.
I still have the same wonder, what is the pcm using to make the determination? bleading off seems better. O2 sensors? OBDII turns them off wide open seems risky.
#17
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ok getting off track. I understand return and returnless. If this was return it would have been adjusted how I want by now. I'm experienced and even build small racing motors (drag quads, dirtbikes).
I still have the same wonder, what is the pcm using to make the determination? bleading off seems better. O2 sensors? OBDII turns them off wide open seems risky.
I still have the same wonder, what is the pcm using to make the determination? bleading off seems better. O2 sensors? OBDII turns them off wide open seems risky.
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