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H22a swap into 93 civic hatch

Discussion in 'HYBRID -> EG-EK / DC' started by 2fastcivic, Nov 4, 2010.

  1. 2fastcivic

    2fastcivic New Member

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    Hi...

    I just bought a 93 hatch with the red top jdm h22a motor installed. The car basically needs a little bit of tweaks to get it running pefect, but I have no idea where to start?! When I start it up it blows blackish smoke that smells of gas. I know the O2 sensor isn't hooked up... I have no idea what wires match with what. Off the O2 sensor I have 2 black wires, 1 white and 1 blue. There is also a pig tail missing that goes between the air intake and the engine. I believe its called the air charge sensor?? I'm wondering if you guys have any ideas or help. Even if its only a suggestion of where to go for more help. I'm also wondering if there is something I can do with how low the oil pan is, as well as the exhaust downpipe. Its about 2 inches off the ground and I forsee problems of scrapping or ripping it off.

    Thanks a bunch

    Chris :rimshot:
     
  2. mikewops

    mikewops New Member

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    chances are you have an exhaust leak somewhere... h22 is such a good yet shitty engine man. the black smoke is your oil burning every time you go above 52k rpms
     
  3. 2fastcivic

    2fastcivic New Member

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    I saw that some vac lines aren't hooked up properly... could this be the problem?? I mean it runs ok... it just smokes alot lol.
     
  4. CAFROG

    CAFROG Honda Minion VIP

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    Smoke is oil passing the piston rings (probably). It might need a mini re-fresh build with new rings installed. Check compression.
     
  5. 2fastcivic

    2fastcivic New Member

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    Oh no... dont tell me that lol... that sounds expensive!!! :(
     
  6. 2fastcivic

    2fastcivic New Member

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    Sorry for being such a noob with this... but I pulled one of my spark plugs and they were BLACK... just covered in carbon. Could this be part of the problem? I'm now really starting to regret buying this car!!


    Thanks a bunch... again lol
     
  7. 94civicturbo

    94civicturbo New Member

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    sounds like it is running rich, possibly from the o2 sensor?
     
  8. FLounder

    FLounder power hungry VIP

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    what ecu do you have running this thing? i know youve got a CEL on, what are the codes that its throwing? thats where i would start, fix the o2 sensor and any other codes that it has. it sounds like its running very rich to me.
     
  9. 2fastcivic

    2fastcivic New Member

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    I'm learning more and more as I go on with this car. The O2 sensor isn't hooked up because the previous owner hacked off the connectors and I have no idea what wire connects to what. It has 1 white, 1 blue and 2 black... its super tight to try and fit under there (oil pan on my chest tight). There are also a couple vac nipples with no hoses on them. I'm almost at the point of taking in to a specialist here in Edmonton and paying to have it looked at and fixed. :(
     
  10. CAFROG

    CAFROG Honda Minion VIP

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    Sounds like it was wired badly. I would investigate the correct procedures and get a new harness to modify. If it was me, I would get it running well with the correct, virgin, ECU for your motor too. Could be the O2 causing this black smoke. Depends though.....are you going through a lot of oil? Have you been monitoring oil levels?

    H22 swaps are notorious for horrible wiring done by novice swappers. I would start the whole wiring over from scratch. Or, if money is tight, you can take the harness all off the car and check all the lines. If they weren't soldered on when it was modified, I would solder everything. Crimped connections are no the best idea in a slammed Honda.
     
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