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Isuzu E-IDSS 2023 Diagnostic Software is designed for efficient diagnostics and repairs of Isuzu heavy machinery and trucks. It combines advanced technology with user-friendly features to facilitate accurate troubleshooting. The software supports a wide range of Isuzu models and enhances the repair process. Installation is straightforward and can be performed remotely via TeamViewer, ensuring quick setup for technicians.
Isuzu E-IDSS 2023 Diagnostic Software
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Cummins ISB CM550 (1990-94) Fault Code: 234 PID: 190 SPN: 190 FMI: 0 Engine Overspeed Circuit

Circuit Description
The engine speed sensor provides engine speed information to the electronic control module (ECM). The sensor must be powered up by +5 VDC to operate.
The sensor generates its signals by sensing the movement of target teeth cast into a tone wheel that is mounted to the crankshaft. The tone wheel has 35 teeth and a gap where the 36th tooth would be placed. This missing tooth indicates that cylinder No. 1 (and No. 6) is at top dead center.

Component Location
The engine speed sensor is located on the intake side of the engine block, at crankshaft level, between cylinders No. 4 and No. 5.

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