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About half of the ECU codes stored on the first & second generation EFI
Toyotas don't show a constant blinking check engine light therefore you
must pull the ECU codes to see if a fault is registered.
To pull the ECU codes:
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/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o... (auto tranny codes)
http://autorepair.about.com/library/ts/o... http://autorepair.about.com/library/ts/o...Pulling the ECU (EFI computer) 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 at each ECU
wire 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 the resistance values 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:
Dartmouth,Nova Scotia
Canada
1985 Toyota 4-Runner,solid front straight axle,factory cruise
control,sunroof,22R-E,W56,RN60LV-MSEK,with 252 000 KM
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