toyota mr2 turbo, help please.

Discussion in 'OT Driven' started by bleeked out, Oct 20, 2004.

  1. bleeked out

    bleeked out wut the? OT Supporter

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    My brother owns a '91 mr2 turbo and it's been acting up lately. Everything seems fine while driving until you put it into neutral, then the revs drop really low. Sometimes it drops so low that the engine dies out altogether. Once again, it only happens when going into neutral to slow down. The only mod on there is a blow off valve. Does anyone know what the problem could be? Thanks in advance!
     
  2. travisdb

    travisdb What do you wanna do?

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    When did it start? So its a low idle only in neutral, even when sitting still? How many miles on the MR2? Any other info. Might just need to do a tune up, fuel filter, cap, rotor, wires and plugs. It always does wonders.
     
  3. Mr 20Valve

    Mr 20Valve OT Supporter

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    might be sucking air in through the BOV & leaning out the mixture so much it's stalling... :dunno:
     
  4. Eric Happy Meal

    Eric Happy Meal New Member

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    air might be leaking out from the bov, but if that were the case you would also most likely be having problems when you get boost.

    the bov also wouldnt be sucking in any air. leaning it out would also cause the idle to rasie, not lower.
     
    Last edited: Oct 21, 2004
  5. yrneh

    yrneh Ralph Wiggum

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    are you recirculating the bov?
     
  6. Mr 20Valve

    Mr 20Valve OT Supporter

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    cars with a vane type AFM can suck air in through the BOV at idle if it is no being recirculated & does not have sufficient spring pressure.

    the BOV will not blow air out at idle, as there is no pressure in the inlet tract. engine vacuum will suck air in through the BOV if a pressure fluctuation on the vacuum side of the BOV causes it to open.
     
  7. dj_madness

    dj_madness New Member

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    Could be a vacuum valve staying closed or not opening properly, happened before on someones car, plus all the fuel related issues, if not getting enough gas
     
  8. seven_mgte

    seven_mgte Guest

  9. slwrthnu

    slwrthnu New Member

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    if the bov does not recerculate then that is the cause of your problem most likely, you can buy recerculating kits for most bovs for around 10 bucks so an easy cheap fix
     

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