AUTOENGINUITY SCAN TOOL FIND TIMING CHEVY SOFTWARE
Most general purpose aftermarket scan tools do not contain the software that allows them to match the OEM scan tools in every respect - but for most applications they can display all the important PIDS. The OEM scan tools used by new car dealers are capable of displaying every possible PID value that is built into the engine management system. SCAN TOOL PID CAPABILITYĭifferent scan tools have different capabilities to display PIDS. PIDS can also be compared using a "graphing multimeter" or on a scope that converts the voltage values to waveforms.Ĭomparing the waveforms of several related sensors can help you find faults that might otherwise be impossible to detect. You can also compare PIDS to see how one component may be affecting another.įor example, when you suddenly open the throttle on an idling engine, rpm should increase, the TPS reading should change and the MAP sensor value should drop. PIDS provide valuable diagnostic information when checking the operation or status of various sensors, circuits and switches in the vehicle's engine management system.įor example, if the MIL lamp is on and you find an oxygen sensor code, you can call up the oxygen sensor PIDS on your scan tool display to see what the oxygen sensor is telling the PCM.
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AUTOENGINUITY SCAN TOOL FIND TIMING CHEVY HOW TO
This manual will teach what to review before using the scan tool, what to check with the scan tool, and how to verify the thoroughness of the information you have gathered to help you beat flowchart time and locate the faults the flow charts can't.PIDS are the serial data that can be accessed from the vehicle computer using a scan tool. What simple fault actually caused this complaint? In this case the flow chart was big time waster. No codes were stored in any module.įlowchart? Yes, there was a flowchart for no-code wiper concerns, and after 19 time-consuming circuit-testing steps, the chart said to replace the #2 wiper relay – no change. The vehicle had just been purchased at auction with the problem, so no history was available.Ĭodes? Nope.
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To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles. Your risk from exposure to these chemicals varies, depending on how often you do this type of work.
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