XR3i EFI pressures please
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Escort Mk4 Goodness
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From: Under the stairs
XR3i EFI pressures please
1990 1.6 CVH with EFI
Does anyone know the correct (standard) pressure that the fuel pump should produce and also the correct (standard) pressure that should be in the fuel rail?
Cheers
Does anyone know the correct (standard) pressure that the fuel pump should produce and also the correct (standard) pressure that should be in the fuel rail?
Cheers
PassionFord Post Whore!!
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From: Lincs.
Autodata states 5.0bar minimum delivery pressure and 2.3-2.5bar at the rail with vacuum applied. This is the spec for XR2i Fiesta CVH EFI as Escort '86 isn't on there anymore.
Was a known mod to raise pressure to 3.5bar to stop light throttle hesitation back in the day.
Was a known mod to raise pressure to 3.5bar to stop light throttle hesitation back in the day.
Thread Starter
Escort Mk4 Goodness
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From: Under the stairs
Cheers mate
Are there any other reading you can get from Autodata such as resistance, impedance etc for testing the sensors etc?
PassionFord Post Whore!!
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From: Lincs.
Yeah, there are some tests.
Depends which sensors you need to test.
Depends which sensors you need to test.
System checks & adjustments
Fuel system
Injector 1
Injector 2
Injector 3
Injector 4
Fuel pump (FP)
Intake system
Throttle position (TP) sensor
Manifold absolute pressure (MAP) sensor
Intake air temperature (IAT) sensor
Idle air control (IAC) valve
Turbocharger (TC) wastegate regulating valve
Ignition system
Engine sensors
Engine coolant temperature (ECT) sensor
Crankshaft position (CKP) sensor
Emission control system
Mixture adjustment resistor
Heated oxygen sensor (HO2S)
Evaporative emission (EVAP) canister purge valve
Control system
Engine control module (ECM)
Ignition control module (ICM)
Vehicle sensors
Vehicle speed sensor (VSS)
Inertia fuel shut-off (IFS) switch
Fuel system
Injector 1
Injector 2
Injector 3
Injector 4
Fuel pump (FP)
Intake system
Throttle position (TP) sensor
Manifold absolute pressure (MAP) sensor
Intake air temperature (IAT) sensor
Idle air control (IAC) valve
Turbocharger (TC) wastegate regulating valve
Ignition system
Engine sensors
Engine coolant temperature (ECT) sensor
Crankshaft position (CKP) sensor
Emission control system
Mixture adjustment resistor
Heated oxygen sensor (HO2S)
Evaporative emission (EVAP) canister purge valve
Control system
Engine control module (ECM)
Ignition control module (ICM)
Vehicle sensors
Vehicle speed sensor (VSS)
Inertia fuel shut-off (IFS) switch
Last edited by GVK.; Sep 24, 2013 at 10:51 PM.
Thread Starter
Escort Mk4 Goodness
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From: Under the stairs
Well I have a three pin fault code reader on it's way so will see if that comes up with anything.
Actual pressure we got off the pump (via popping a gauge between the fuel feed to the filter banjo) was 4.0 bar so we are not that far off there.
We took a reading from the return of the Fuel Reg and that came back as nothing (despite adjusting the screw) which leads us to think that the reg might of had it
Actual pressure we got off the pump (via popping a gauge between the fuel feed to the filter banjo) was 4.0 bar so we are not that far off there.
We took a reading from the return of the Fuel Reg and that came back as nothing (despite adjusting the screw) which leads us to think that the reg might of had it
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