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#1
11-25-2005, 06:02 PM
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94 Pick-up wont idle, backfires
IT started to jerk while driving. Would not idle unless giving gas at stop light. By the time I made it home was flooring it to keep alive. now when I start it, wont idle unless pumping gas pedal. feels not firing on all cylinders. gas smell out of tail pipe. pulled spark plug all black drug, indicating rich fuel.
Parts list replaced. pugs, cap, fuel filter, plug wires, pcv, coolant temp sensor, coil, air flow meter ($$ouch), both oxygen sensors compression is good, fuel pressure is good, holds fuel pressure so fuel regulator is good. egr is working. Any help would be very appreciated. 
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#2
11-27-2005, 08:15 PM
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All 1980-1995 and including 1995 EFI equipped vehicle allow you to find engine and related faults by pulling the ECU (computer) codes without the need for a handheld OBDII diagnosis scanner,the sites listed below have the fault codes needed to pull the codes and the instructions on how to do it:
http://autorepair.about.com/library/...bl-dtcs-36.htm http://autorepair.about.com/library/...bl-dtcs-53.htm http://autorepair.about.com/library/...bl-dtcs-71.htm http://autorepair.about.com/library/...bl-dtcs-90.htm http://www.off-road.com/toyota/tech/codes/index.html http://lcengineering.com/TechNotes/TechNote12.htm http://lcengineering.com/TechNotes/TechNote13.htm http://www.geocities.com/MotorCity/P...ct/Engine.html http://www.mad-mechanic.com/toyota/t...tml#obtaincode http://www.freewebs.com/th3duke/22RE-ECU.mht http://www.troublecodes.net/Toyota/ http://members.igateway.net/~pscott/enginecodes.html http://www.autobook.co.kr/data_links...uble_codes.htm http://www.autoshop101.com/forms/h27.pdf http://www.showmesome.info/hilux/inf...E/Page0096.htm http://www.efisakh.narod.ru/at_toyota.htm http://www.usatransdoctor.com/foreigntoyota.htm Pulling the ECU codes is the first thing I do to diagnosis a problem thereafter I reset the ECU to see if the same problems show up and if so I then take voltage measurements both with the engine running and not and compare with the factory service manual,I also close the ignition switch after a cold engine and also after a warm engine and compare them with the factory service manual.This technique will completely isolate your problem without having to do trial and error and it is the technique I use when repairing tv's,vcr's,home/car audio. Sidney® ™ Repairs tv's,vcr's,home/car audio out of my home E-mail:[email protected] Dartmouth,Nova Scotia Canada 1985 Toyota 4-Runner,solid front straight axle,factory cruise control,sunroof,22R-E,W56,RN60LV-MSEK,rusted rear step/towing chrome bumper with 246 000 KM
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