Fuel - High flow injectors | Ford Escort Owners Association (FEOA)
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Fuel High flow injectors

Discussion in 'Engine Tuning' started by mello, Jul 9, 2020.

  1. mello

    mello FEOA Member

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    Hi guys I'm interested in getting some high flow injectors that fits the 93 1.9l. I have cold air intake and need to compensate for the air mixture which is higher than normal. Can someone tell me which set I can use? Any help is greatly appreciated.
  2. marclar

    marclar Moderator Staff Member

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    the factory injectors are good up until about 4psi of boost, along with the factory fuel system. a CAI will not add enough air flow to require larger injectors... even if you did a 2.0spi swap the factory 1.9 fuel system is sufficient.
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  3. mello

    mello FEOA Member

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    Thanks for your help. But I can surely say that I'm having lean mixture especially when I'm at wot. The engine light comes on, I check it and it's lean mixture, so I can say it's more air than fuel, so I definitely need more fuel to compensate thus the higher flow injectors. May not be very high but more than what is in at the moment.
  4. Swift

    Swift FEOA Donator

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    The question is why is it lean. Have you checked fuel pressure at wot? How clean is maf, how new is O2?
    Also just noticed you had Cai, is it an oiled filter on it?
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  5. mello

    mello FEOA Member

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    No I haven't checked the pressure but it works fine. For the O2 it's been there a while but I don't have any codes for it. No it's not an oiled filter, dry. The maf is clean recently did it. So what's your suggestion I can attempt?
  6. austin86

    austin86 That nut who spends way to much on a escort.

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    Any vacuum leaks, leaky intake gaskets?
    I know on a 80s escort you can unplug the O2 and MAP (80s escort did not use a MAF) to find out if they don't work. basically , no change when unplugged means it could be bad. Not sure if that can be done on a 90s escort.
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  7. mello

    mello FEOA Member

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    Hoses good, replaced most of them some time back due to age.
  8. marclar

    marclar Moderator Staff Member

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    there's got to be something else going on... some sort of an air leak somewhere. the cold air intake does not 'make more air go in'... the engine still is breathing the same amount, all it does is make it easier to flow... no one has ever had to add larger injectors. if you did add larger injectors you would need a calibrated larger MAF that is paired to the injectors. for example 19# injectors out of a 3rd gen 2.0spi and its maf, but will require some wiring changes....

    do you have a scan tool that can read active data?

    the factory air box has a hose for the pcv breather, what did you do with this hose?
  9. mello

    mello FEOA Member

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    That I just put a small filter on. There was no place on the CAI for it I'll upload an updated engine bay when I get home.
  10. mello

    mello FEOA Member

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    I really don't know know what is causing it or the solution, but it's been this way since install. And there are times I get a surge like the injectors are sending more fuel in but momentarily tho. Then the light comes on which means lean mixture.
  11. marclar

    marclar Moderator Staff Member

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    what about the intake temp sensor that was screwed into the box?
  12. mello

    mello FEOA Member

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    forgot about this thread. All connections are in even the hoses.

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