Question about 1988 Toyota MR2

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Nothing above 500 RPM

Hello all,
I need some help. I bought an 88 MR2 NA in mar and when I cranked it up I immediately new it had spun a bearing. I dropped the motor and disassembled it to a short block and had a reputable builder rebuild it. The #2 bearing had spun so new crank, rod and new rings. nothing else needed. I've reassembled and installed it and just can't get it to run properly. It takes forever to get it running and when it does it will not go above 500 rpm at idle or foot on the pedal. I've re-checked the timing and it is good, I've checked for spark at the plugs and they are good. I've checked the pulse to the injectors and each one is pulsing. I've checked to see if it is getting fuel and it is. I'm because it ran before and now it won't. I've also checked the air flow meter with a volt/ohm meter and it was good. Any and all responses/help will be appreciated. Thanks.

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Hi
Before the throttle body you should have a air flow sensor . That sensor must face to the right direction try turning it 180 degrees and then try again. It must read the air going in to the motor if it facing the wrong way its reading air going out.
Regards
Billie S/Africa

Posted on Jan 13, 2009

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