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Re: 1987 ECU remove & keep 700r4
That kit hasn't got the vacuum switch to prevent lockup/unlock when the engine is under more load. It will shift into 4th and lockup immediately, and not unlock until it downshifts 3rd or you apply brake. The painless kit includes the vacuum switch so when engine load increases slightly it will unlock for you.
Last edited by kalbert; 12-06-2015 at 02:15 AM.
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