05-09-2011, 11:08 PM
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#19
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Registered Member
Join Date: Dec 2011
Posts: 720
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Re: '89 CRX HF + D15Z1 troubleshooting...
Quote:
Originally Posted by MakDiesel
Spent several hours Friday tracking wires and voltages, long story short the TPS cannot be my problem, nor can the MAP or conversion harness. Considering that when I disconnect the TPS, the ECU artificially raises the idle to compensate & all my problems miraculously disappear, I'm going to reset the idle according to HELMS and go after the IACV and that other manifold sensor (TW in the book IIRC). After that, it's on to the O2 sensor and I do not want that to be a costly lesson in bought-but-didn't-fix lesson. Mak
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if you do go ahead with cleaning the IACV, I suggest taking off the throttle body and giving it a thorough cleaning. I know on my throttle body there was a lot of gunk inside of the passages, especially in the passage for the the idle screw. Btw, have you replaced the PCV valve? Checked for vacuum leaks, etc?
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