Cobra289
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| posted on 1/6/20 at 08:23 PM |
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quote:
Originally posted by big_wasa
Take that gauze of the maf for a start. It upsets it for some reason.
Good point!
Filter have 100x times or more that surface.
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jeanp
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| posted on 2/6/20 at 11:32 AM |
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Hi,
thank you for your reply!
I don't understand the meaning of:
"Take that gauze of the maf for a start. It upsets it for some reason".
Please Big Wasa, can you explain this?
Some précisions: the fuel pump and the filter (I mount it before the pump) are new
What kind of exhaust do you propose?
Cheers
Jean
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jeanp
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| posted on 2/6/20 at 11:57 AM |
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I forgot
I 've check the fuel tank before filling it: it was clean
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big_wasa
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| posted on 2/6/20 at 12:18 PM |
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The pair of ladies tights or what ever it may be that is atached over the maf will upset the sensor readings and therefore the running.
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jeanp
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| posted on 2/6/20 at 04:16 PM |
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Re
So, if I understand you, I have to disconnect the Mass air Flow sensor from the muff? Isn't it?
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big_wasa
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| posted on 2/6/20 at 04:20 PM |
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Use a proper air filter
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jeanp
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| posted on 2/6/20 at 04:30 PM |
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ok understand
thank you
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jeanp
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| posted on 4/7/20 at 08:21 PM |
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Hi everybody!
I give you some news of my seven with the ST 170 :
I order a air filter but it 's not installed yet
I think I forgot to tell something: for the fuel line I 've read somewhere that on the Focus ST 170 the fuel line was ounting without return to
the fuel tank; so I do like that!
BUT!
After explain the problem to the fuel pump seller, he ask the pump manufacturer and this one said that I have to mount a fuel regulator with a return
to tank
So do I!
This afternoon , I was on track to try my new steed: it runs very well!!!
I have some other little problems about the accessory belt which squeal during the 3 first rounds and after it's ok?!?! probably the tension,
but this first run was a great surprise
chears,
Jean
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big_wasa
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| posted on 5/7/20 at 06:47 AM |
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The ecu controls the pressure via the fuel pump driver modual. It’s not a great system in my opinion but NO you can’t just add a fuel reg and run it
along side the the fuel pump driver modual?
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jeanp
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| posted on 5/7/20 at 05:24 PM |
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HI Big wasa!
I don't understand the sense of your sentence...
In the mounting I conserved the fuel pump driver module and add a regulator: in this configuration the fuel pump doesn't force and the fuse
doesn't blown too?
I test the car during half an hour yesterday it works well.....
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big_wasa
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| posted on 5/7/20 at 05:35 PM |
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Your English is better than my French but we still have a communication shortfall.
The fuel pressure on the st170 is controlled by pulsewidth modulation of the pump.
The ecu rapidly turns the pump on / off to give the required pressure.
There is NO fuel pressure regulator.
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jeanp
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| posted on 5/7/20 at 06:07 PM |
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re,
Yes I agree with that!
My pump is an external pump (not the original)
I think (that's what I noticed) that the pump is forcing without reg
The regulator relieve is work
I have a question: if my fuel pump driving module doesn't work , what 's going on at the engine?
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jeanp
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| posted on 5/7/20 at 07:05 PM |
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Re,
about the question:
Concerning the FPDM, on the diagram, I see a transistor: if the transistor blowns, does the fpdm still works ?
I ask this question because , when I start I can hear the fuel pump running (before starting the engine, just put the buton on perm live) and with
the reg the pressure is at 3 bars, but the fpdm doesn't stop the pump, so may be there is a problem with the FPDM
chears,
Jean
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jeanp
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| posted on 5/7/20 at 07:05 PM |
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Re,
about the question:
Concerning the FPDM, on the diagram, I see a transistor: if the transistor blowns, does the fpdm still works ?
I ask this question because , when I start I can hear the fuel pump running (before starting the engine, just put the buton on perm live) and with
the reg the pressure is at 3 bars, but the fpdm doesn't stop the pump, so may be there is a problem with the FPDM
chears,
Jean
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big_wasa
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| posted on 5/7/20 at 07:15 PM |
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No idea.
[Edited on 5/7/20 by big_wasa]
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