Painless Performance 2000 - 2002 GM VORTEC THROTTLE BY WIRE 60219 Instrukcja Użytkownika Pobierz pdf (Strona 20)

8.0 TROUBLE- SHOOTING INSTRUCTIONS

FIGURE 8.1 Fuse Identification

8.1 THE "CHECK ENGINE" LIGHT

Normally, the "check engine" light should come on when the ignition is turned on, and

then go out a few moments after the engine starts running. If it reappears, or stays on

while the engine is running, the computer has detected a problem and a trouble code

has been set.

NOTE: Most likely the check engine light will come on and stay on when using a

computer with the original factory programming. This is why we recommend

that the computer be reprogrammed to remove any items that the factory

vehicle had that aren’t being used in the vehicle you are installing the engine

into.

8.2 RETRIEVING TROUBLE CODES FROM THE COMPUTER

Diagnosing problems in modern automobiles can sometimes be very frustrating and

confusing, especially when it involves computer controlled systems. The fact is, for the

most part automotive electronics have been proven quite reliable, and the greatest

number of problems with new cars is the same kinds of problems that older cars

without computer controls have.

Begin all troubleshooting by checking the basics. Certain basic faults may be

undetectable by the Powertrain Control Module (PCM) self-diagnostic system and can

actually interfere with self-checking and fault memory operation. Low battery voltage,

for example, can cause erroneous faults to set in PCM memory or can cause a system

to go "Fail Safe" without setting a fault in memory. Because system faults memory is

cleared whenever PCM or battery are disconnected, fault codes should be read prior to

any vehicle power interruption or troubleshooting.

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Painless Performance 2000 - 2002 GM VORTEC THROTTLE BY WIRE 60219 Instrukcja Użytkownika Strona 20