TRUCK HAS BLACK SMOKE IDLES ROUGH. O2 SENSOR AT COMPUTER SAYS .900 VOLTS, CTS.,IAT.,TPS.,PFE.,MAP.,PCV,EGR, PURGE SYSTEM ALL TEST GOOD. INJECTOR PULSE IS ABOUT 2.7-2.8 MS WITH WARM ENGINE(200F.) EEC GROUND AND POWERS ALL TEST GOOD. IDM/ PIP SIGNALS ARE A L...

FIX posted 11/15/1999

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