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Thread: 1990 Geo Metro Lsi 1.0

  1. #1
    Join Date
    Nov 2013
    Posts
    3

    1990 Geo Metro Lsi 1.0

    Do I need a Map Censor? an EFIE in my car? Can I just hook up the HHO module with the PWM and be good to go?

    Please let me know,

    Thank you

  2. #2
    yes you do need a map sensor enhancer and an 02 enhancer at least. obd 1 cars still have 02 feedback like newer cars the main difference is obd 2 vehicles go into closed loop a lot faster, they can control the fuel/ air ratio at lot more accurately, and they can detect when a sensor is starting to fail but hasn't completely failed. obd 1 only can tell if the circuit is open or shorted.

  3. #3
    Join Date
    Nov 2013
    Posts
    3
    Could I get away with just the Map Enhancer and leave the O2 alone? Or would you buy something jsut to lean the 02? Liek them extensions or whatever.

  4. #4
    if you were to only get one i would get 02 enhancer. but to get the most from it you need to tweak at least one of the input sensors(map, coolant temp, air temp).

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