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ECU codes need help.

Discussion in 'Prelude' started by ihatemyprelude, Jul 19, 2008.

  1. ihatemyprelude

    ihatemyprelude New Member

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    Ok.. iam totaly new to the hole.. tuner stuff, just got a 92 prelude a week ago. and it is having a idle problme.. 700rpm - 1700rpm I got a new ( ICV) off my friend and it read 8-12ooms so thats not the problem. and i bleed the cooling system, that didnt work.. there are no vacume leaks. I was thinking the code for Map sensor could be the problme? just want to make sure befor i spend alot of money..

    and if any one can help me with the other 3 codes ( 9, 2, and 4 ) that would be great, thank you.

    3 MAP - manifold absolute pressure sensor
    9 CYP - cylinder sensor
    2 O2B - Oxygen sensor #2
    4 CKP - crank position sensor

    3- Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98
    MAP Sensor (Manifold Absolute Pressure)
    defective circuit or unplugged / defective sensor

    9*- Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98** 86-98 97-98 85-91 93-97 95-98 85-98
    CYP Sensor (Cylinder)
    defective circuit or unplugged / defective sensor
    * not a valid code for any throttle body injection Hondas
    ** not a valid code for V-6 engines

    2- Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-89 86-87 n/a 85-87 85-91 n/a n/a
    Oxygen Sensor "B"
    defective circuit or unplugged / defective sensor

    4- Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-98 88-98 97-98 88-91 93-97 95-98 85-98
    CKP Sensor (Crankshaft Position Sensor)
    defective circuit or unplugged / defective sensor
     
  2. ihatemyprelude

    ihatemyprelude New Member

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    ok now, i reset my ECU by pulling the ( clock / radio fuse ) and now iam geting ( code 9 and 2 )

    i reset it and took it for a ride about 5 miles so that map sensor and crank sensor code would show up.
     
  3. BrutalB83

    BrutalB83 Brutal Moderator Moderator VIP

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    What's so hard to understand about this? Just follow the codes. You probably need a new O2 sensor...
     
  4. ihatemyprelude

    ihatemyprelude New Member

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    ya but would a O2 sensor, make my car rev from 700-1700 then back down when ever i idle?
     
  5. Ethan

    Ethan Well-Known Member

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    Get a new o2 censor. There like 60 bucks! :D
     
  6. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    also with that number of codes, double check the wires. Could be someones hack job. Especially since you bought it that way.
     
  7. Ethan

    Ethan Well-Known Member

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  8. Luis998

    Luis998 Honda Enthusiast

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    A bad TPS will.
     
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